Riferimento API

Riferimento API

Genera video AI in modo programmatico. Invia un prompt, attendi il completamento e ricevi un URL diretto al video — tutto tramite REST.

URL di base: https://www.yoh.app

Gli esempi di codice useranno il segnaposto sk_live_YOUR_API_KEY finché non avrai effettuato l’accesso.

Guida rapida

Crea il tuo primo video in tre chiamate API: genera → verifica → scarica.

Sign in and create a key at API Keys. Choose stories:generate and stories:read for generation and polling, then copy the full key immediately — it is shown only once. Keep it in a server environment variable or secret manager. Your account needs enough credits; creating a key does not add credits.

Controlla la tua chiave e il saldo (senza costi)
curl https://www.yoh.app/api/v1/credits \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"

Submitting a generation request authorizes its credit charge; API integrations do not need an interactive price confirmation. To check cost first, POST the same body to /api/v1/stories/estimate. Optionally send X-Max-Generation-Credits with your maximum whole-number credits: exceeding it returns HTTP 409 before charging. Use the canonical host shown here; redirects from yoh.app can drop your Authorization header.

1. Genera un video
curl -X POST https://www.yoh.app/api/v1/stories/generate \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: YOUR_UNIQUE_REQUEST_ID" \
  -d '{ "prompt": "A dragon teaches a young knight how to fly", "contentType": "cinematic_story", "aspectRatio": "16:9", "scope": "full", "renderVideo": true }'

Replace YOUR_UNIQUE_REQUEST_ID with a unique ID for this operation. Reuse that ID and the identical body when retrying a queued generation request after a network failure. A new ID starts a new operation. Direct image/music requests may return a conflict on replay; inspect the asset before retrying. Poll the returned job every 20 seconds until completed or failed. A failed job is terminal; an error on a queued job can describe an automatic retry. For a text-only draft, use scope: "story" and omit renderVideo.

Risposta — job in coda
{
  "jobId": "cmnk8wu2q0001q3vpmqv93nmy",
  "status": "queued",
  "pollUrl": "/api/v1/stories/jobs/cmnk8wu2q0001q3vpmqv93nmy"
}
2. Verifica fino al completamento
curl https://www.yoh.app/api/v1/stories/jobs/cmnk8wu2q0001q3vpmqv93nmy \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"
Risposta — job completato
{
  "status": "completed", "progress": 100,
  "storyId": "cmnk8xxnx000004lbd7siief7",
  "videoUrl": "https://cdn.example.com/video/clip.mp4",
  "error": null
}

Fatto. videoUrl è un URL pubblico che puoi scaricare, trasmettere in streaming o condividere immediatamente.

Autenticazione

Tutte le richieste API devono includere la tua chiave API nell’intestazione Authorization utilizzando lo schema Bearer.

Authorization: Bearer sk_live_YOUR_API_KEY

Le chiavi API iniziano con sk_live_. Puoi creare e gestire le chiavi dalla API Keys page. /api-keys

Custodisci le tue chiavi API con cura. Non esporle nel codice client-side o in repository pubblici. Se una chiave è compromessa, revocala immediatamente dalla pagina Chiavi API.

Ambiti e crediti

A ogni chiave API sono assegnati uno o più ambiti che controllano a quali endpoint può accedere. La generazione del testo della storia costa 55 crediti per job; gli ambiti che producono anche video delle clip o un Render finale (incluso l’ambito predefinito, full) addebitano tali costi in anticipo. I Crediti vengono rimborsati se il job fallisce dopo tutti i tentativi.

AmbitoGarantisce l’accesso a
stories:generatePOST /api/v1/stories/generate, POST /stories/:id/assets, POST /stories/:id/storyboard, POST /stories/:id/videos, POST /stories/:id/render, POST /stories/:id/clips/:clipId/image, POST /stories/:id/clips/:clipId/video, POST /stories/:id/clips/:clipId/video-edit, POST /stories/:id/characters/:assetId/sheet, POST /stories/:id/soundtrack, POST /stories/:id/assets/:assetId/image, POST /stories/:id/clips/:clipId/regenerate, POST /stories/:id/continue, POST /stories/:id/clips-all, POST /stories/:id/clips/:clipId/grid-reference — and the story-asset edits: PATCH /stories/:id/characters|scenes|items/:assetId. Also implies assets:write and series:write, so keys issued before those scopes existed keep working.
stories:readGET /api/v1/stories, GET /api/v1/stories/:id, GET /api/v1/stories/jobs/:id, GET /api/v1/credits, GET /api/v1/models (the models and visual styles the pickers offer, with durations, resolutions, aspect ratios, reference limits, price hints and retired ids), POST /api/v1/stories/estimate, POST /api/v1/stories/analyze-prompt. Implies series:read and assets:read.
stories:writeThe clip edits: POST/PATCH /stories/:id/clips, PATCH/DELETE /stories/:id/clips/:clipId, POST /stories/:id/clips/:clipId/duplicate; a hired character's looks: POST /stories/:id/characters/:assetId/hire-looks; starting an episode from your own video: POST /api/v1/series/:id/uploads, POST /stories/:id/upload (GET with stories:read; so is GET /stories/:id/media, every file of a story); and the MCP server's editing tools (POST /api/mcp): clip content and dialogue, timeline moves/trims/captions, freeform overlays, cast and set edits. Spends no credits, so a key with this scope but WITHOUT stories:generate can edit a story and physically cannot pay to generate anything. Implied by stories:generate; implies assets:write.
assets:readGET .../characters, .../scenes, .../items, .../clips, GET .../characters/:assetId/hire-looks, GET /api/v1/series/:id/assets
assets:writePOST /api/v1/series/:id/assets, PATCH/DELETE /api/v1/series/:id/assets/:assetId, POST /api/v1/uploads, POST /api/v1/uploads/presign (a one-time PUT URL for an audio, video or image file)
series:readGET /api/v1/series, GET /api/v1/series/:id
series:writePOST /api/v1/series, PATCH /api/v1/series/:id
social:publishPOST /api/v1/social/publish, GET /api/v1/social/publish/:postId
accounts:manageGET/POST /api/v1/accounts, GET/POST /api/v1/accounts/:accountId/credits. For platforms that serve many customers: provision an account per customer and fund it from your own balance. Implied by nothing — an existing key never gains it.

Genera un video

Metti in coda un job di generazione video

POST/api/v1/stories/generatescope: stories:generate

Invia un prompt e restituisce immediatamente un jobId. Il video viene generato in modo asincrono. Verifica lo stato su GET /api/v1/stories/jobs/:jobId per monitorare l’avanzamento.

Corpo della richiesta

CampoTipoStatoDescrizione
promptstringobbligatorioDescrizione della storia, massimo 5000 caratteri.
aspectRatiostringopzionaleUno tra 16:9, 9:16, 1:1, 21:9. Predefinito: 16:9.
renderVideobooleanopzionalefalse — restituisce la prima clip AI (veloce, ~10 min). true — esegue il Render di tutte le clip in un unico MP4 composto tramite Remotion (~12–15 min).
scopestringopzionalestory (text only) or full (text, images and clip videos; default). Use renderVideo: true with full to include the final MP4 and its render fee. Other values return 400 before charging. For assets, storyboard, videos or render on an existing story, use the separate /api/v1/stories/:storyId endpoints below.
titlestringopzionaleNome visualizzato per la storia.
contentTypestringopzionaleCategoria del formato della storia. Uno tra cinematic_story, news_analysis, persona_channel, ad_spot. Predefinito: cinematic_story.
localestringopzionaleCodice lingua, es. en, zh-TW. Predefinito: en.
seriesIdstringopzionaleCollega a una serie esistente per mantenere uno stile visivo dei personaggi coerente.
assetsarrayopzionaleThe cast and props for this story — reference assets already in your series library, or attach one-off assets inline. See the table below.
continuityModestringopzionaleWith a seriesId: how much of the previous episodes this one carries. episodic_continuous (default) picks up open threads, finale resolves them, one_off_episode keeps series plot out entirely.
isFinalebooleanopzionaleImplied by continuityMode: "finale"; you rarely need both.
allowMultiStorybooleanopzionaleLet one request split into several episodes when the prompt clearly carries more than one. Default false — N episodes means N charges, so it is opt-in.
seriesContinuityContextobjectopzionaleEscape hatch. Supplying it replaces the continuity we assemble from your series (open threads plus the last three episode recaps), so an incomplete object produces a weaker episode than sending nothing. Prefer continuityMode.

assets[] opzionale

This array ATTACHES assets to one generation — it is not where an asset is defined. It carries only what is read inline; the full asset shape (character type and role, voice, scene lighting and mood, item material and condition) lives in the series library, which accepts all of it and which the pipeline reads directly. Reference the library by id rather than restating an asset here. Each entry either references an asset in your series library by seriesAssetId (upload it once via POST /api/v1/series/:seriesId/assets and reuse it forever), or defines a one-off asset inline with type + name. The two forms mix freely in one array. Whatever you attach is described to the writer, and its image is reused instead of a new one being generated — so a character keeps their face and a product keeps its packaging.

CampoTipoDescrizione
seriesAssetIdstringReference an existing library asset. Everything else is optional when this is set.
typestringcharacter · scene · item · reference. Required for an inline asset.
namestringRequired for an inline asset. Also how the writer refers to it — name it in your prompt for it to appear.
descriptionstringOverrides the library description for this story only.
imageUrlstringImage for an inline asset. Re-hosted on our storage.
itemTypestringItems only: prop · product · logo. A logo is composited flat, never given 3D depth.
isHeroProductbooleanad_spot: the advertised product — appears in every clip. Fills heroItemId for you.
isPrimaryBackgroundbooleannews_analysis / persona_channel: the set reused across every shot. ad_spot: the real place (e.g. your shop) used in the shots that name it. Fills primaryBackgroundAssetId for you.
useAsReferenceFramebooleanUse this image as the first frame / reference for image-to-video on clips featuring the asset.
genderstringCharacters only: surfaced to the writer.
agestringCharacters only: surfaced to the writer.
personalityTraitsstring[]Characters only: surfaced to the writer.
timeOfDaystringScenes only, e.g. dusk.
weatherstringScenes only, e.g. rain.
persistbooleanAccrue an inline asset into the series library so later stories can reference it by id. Default false.

Characters, scenes and items only enter the story when the prompt names them — attaching a whole series library does not drag its entire cast into every episode. The two pin flags are the exception: a pinned hero product or primary background is guaranteed regardless of whether the script says its name.

globalConfig opzionale

Optional nested object controlling duration, output format, and model selection. Every field has a default; pass only what you want to override. The model fields (videoModel, imageModel, characterImageModel, modelStrategy) may also be passed at the top level as a convenience. Unknown model ids degrade to auto rather than failing the request.

This is a superset of the studio's own controls, not a mirror of them. resolution is the studio's resolution pills (default 720p; the story keeps the value you send and each clip makes what its model can, e.g. Seedance 2.5 up to 1080p, Kling and MiniMax H3 from 720p). qualityTier, modelStrategy and seed are API-only. Two fields are advisory: they are shown to the writer as context but nothing enforces them, and they are marked below.

CampoTipoValoriPredefinito
storyInputModestringauto · develop · follow_script (auto decides whether the prompt is an idea to develop or a finished script to follow verbatim)auto
durationSecnumber15–192 (total seconds; about one 8 s clip per 8 s, at least 2 — 16 → 8+8, 20 → 8+6+6; longer content is split into episodes)60
clipCountnumber2–24 clips sharing durationSec, 4–12 s each (16 with 4 = 4 × 4 s); a count that does not fit is refused 400. Omitted: about one 8 s clip per 8 s, or the count the prompt names ("in 4 clips")—
aspectRatiostring16:9 · 9:16 · 1:1 · 21:916:9
resolutionstring480p · 720p · 1080p720p
pacestringslow · normal · fastnormal
structurestringauto · 3_act · 4_act · montageauto
captionStylestringstandard · words — how dialogue captions show: each line whole, or word by word (TikTok style: a few words at a time, the spoken word highlighted). Change it later with MCP update_caption_settings stylewords for 9:16, else standard
qualityTierstringdraft · balanced · premium (premium selects the advanced model lane)balanced
stylePresetstringauto, or a visual style id (list_style_presets kind visual). An unknown id is refused 400; custom style words go in style.cinematicStyleauto
platformTargetstringADVISORY — shown to the writer as context; nothing enforces it. youtube · tiktok · instagram · xyoutube
safetyModestringADVISORY — shown to the writer as context; not a content filter. standard · strictstandard
seedstringany string — shared across clips for continuity (API-only)—
videoModelstringa model id, or autoauto
videoEditModelstringvideo editing only — bytedance/seedance-2.5-video-edit (Seedance 2.5 Video Edit), or auto. The old ids muapi/sd25-video-edit and muapi/sd2-video-edit are still accepted and mean the same model. Omit to keep the existing editing recipe.auto
imageModelstringstoryboard frames + scene/item images — a model id, or auto (GPT Image 2.5)auto
characterImageModelstringcharacter portraits, sheets and appearance variants — auto (GPT Image 2.5), google/nano-banana-2 or bytedance/seedream-5-pro (list_models: character)auto
modelStrategystringauto · fixed · cost_optimized · quality_first · hero_premiumauto
generationModestringDEPRECATED — ignored. The selected model determines frame or reference inputs.auto
localestringen · zh-TW · ja · ko · th · id (also accepted top-level)en

contentTypeConfig opzionale

Optional per-contentType creative controls. Fields are validated against the selected content type; omitted fields fall back to sensible defaults. Pass the object matching your contentType. The two pin ids below are usually easier to set as isHeroProduct / isPrimaryBackground on an assets[] entry — an id you write here wins if you send both.

contentTypeCampi
cinematic_story(no per-type fields — format craft is built in)
news_analysisprimaryBackgroundAssetId, primaryBackgroundName (pin a studio scene across anchor shots)
persona_channelprimaryBackgroundAssetId, primaryBackgroundName (pin the persona's set)
ad_spotheroItemId, heroProductName, heroTagline, heroKeyBenefit, primaryBackgroundAssetId, primaryBackgroundName (the advertised product, and optionally the real place it is sold or used). heroItemId is an item of the seriesId series: its name fills an empty heroProductName (the tagline is never invented from its description) and the item joins the story with its picture. An id that is not an item of that series answers 400 hero_item_not_found (allowed lists the series items); heroItemId without seriesId answers 400 hero_item_needs_series. With no hero given, the series item flagged isHeroProduct is used, else the series product the prompt names, else the first product. Other series products join the story only when the prompt names them or a shot shows them.

Altri campi opzionali

CampoTipoDescrizione
storyQualityConfigobject{ characterStyle?: "match_story" | "keep_own", characterStyleOverrides?: { [character name or series asset id]: "match_story" | "keep_own" }, directClipImageGeneration?: boolean }. characterStyle (default match_story, or the series default): a cast member whose own look is another style is redrawn in the story style, or keeps its own look. Hired characters always keep their own look. enableStyleAdaptedCharacters is deprecated (false reads as keep_own).
castArtbooleanscope "story" only. Default true, as the app: once the text is written, cast art (character sheets and shared backgrounds) starts and is charged automatically. false: draw it yourself with POST /assets. Every clip video needs it (409 ASSETS_REQUIRED otherwise). scope "full" always draws it.
styleobjectStyle-consistency overrides: cinematicStyle, era, colorPalette, lightingStyle, filmGrain, lensCharacter, materialEmphasis, styleCategory, negativeHints, stylePreset.
seriesContinuityContextobjectSeries continuity context for episodic generation. Used together with seriesId.

Fields that aren't part of the selected contentType's schema are silently ignored — cinematic_story takes no per-type fields at all, so pass contentTypeConfig only for ad_spot, news_analysis, or persona_channel.

Esempio di controllo completo
curl -X POST https://www.yoh.app/api/v1/stories/generate \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A 30s spot for a titanium water bottle that keeps ice for 24h",
    "contentType": "ad_spot",
    "scope": "full",
    "renderVideo": true,
    "globalConfig": {
      "durationSec": 30,
      "resolution": "1080p",
      "modelStrategy": "hero_premium"
    },
    "contentTypeConfig": {
      "heroProductName": "Northpeak Flask",
      "heroTagline": "Ice, 24 hours later.",
      "heroKeyBenefit": "Vacuum-sealed titanium keeps ice frozen for a full day"
    }
  }'

Risposta 202 Accepted

{ "jobId": "cmnk8wu2q0001q3vpmqv93nmy", "status": "queued", "pollUrl": "/api/v1/stories/jobs/..." }

Endpoint passo dopo passo

After generating a story with scope: "story", use these endpoints to generate storyboard images, clip videos, and the final rendered MP4 as separate steps.

POST/api/v1/stories/:storyId/assets

Generate the cast and world: character portraits + 2×2 character sheets, plus scene and item images. Run this before /storyboard for the best face consistency. Skips assets that already have images. Runs as the app's Make cast art: a look the series already has is reused for free, and each asset that could not be drawn is refunded on its own. Answers 202 { jobId, runId, runUrl, pollUrl, estimatedCredits }.

Credits: charged per generated image | Scope: stories:generate
POST/api/v1/stories/:storyId/storyboard

Generate storyboard grid images for all clips. Skips clips that already have images. Runs as the app's missing-stills batch (one run per clip, each refunded on its own if it fails): answers 202 { runId, runUrl, clipsToGenerate, estimatedCredits }; poll GET /api/runs/:runId.

Credits: the batch quote over the planned clips | Scope: stories:generate
POST/api/v1/stories/:storyId/videos

Generate video for each clip. Skips clips that already have a video URL. Runs as the app's own Generate All: one clip at a time in story order, each continuing the previous clip's video (parallel: true runs a few at once without that reference), each clip charged, settled and refunded on its own within the batch price. Like Generate All, clipIds narrows it to those clips, and with includeExisting: true they are re-generated even when they have a video. Answers 202 { runId, runUrl, cancelUrl, clipIds, estimatedCredits }: poll GET /api/runs/:runId until it ends (result.results lists each clip); POST /api/v1/runs/:runId/cancel stops it. /clips-all takes the same options.

Credits: ~164 per 8s clip at 720p (default model; ~73 at 480p; scales with duration and resolution) | Scope: stories:generate
POST/api/v1/stories/:storyId/render

Stitch all clip videos + music + captions into a final MP4. Every clip of the cut needs its video first: otherwise it answers 409 clips_missing_video with missingVideoClips (clipId, position, title, hasImage) and charges nothing.

Credits: 10 | Scope: stories:generate

Una clip alla volta

The batch endpoints above only fill in what's missing — /storyboard skips clips that already have an image and /videos skips clips that already have a video. To re-roll a shot you don't like, target it directly. These are the same operations as the editor's per-clip regenerate buttons, and they overwrite whatever that clip already has.

Stories run at the same time. The clip endpoints (image, video, video-edit, regenerate, and the batches /storyboard, /videos, /clips-all) start the app's own run at once, exactly as the clip panel or Generate All would, and follow the app's rule: there is no job queue. Inside a batch clips run one at a time in story order, each continuing the previous clip's video; "parallel": true on /videos or /clips-all trades that continuity for speed (a few clips at once, no previous-clip video; on a single-clip endpoint it is ignored). The same request again (the same Idempotency-Key, or the same body a moment later) answers the run already started instead of charging twice. While an API job works on the story (a scope: "full" generate, a render, a continuation) a clip endpoint answers 409 API_JOB_RUNNING (nothing charged, with activeJobId and activeJobScope): retry when that job finishes. The other way round, a story-wide job (render, generate on an existing story) answers 409 STORY_BUSY (nothing charged, Retry-After) while a clip run is working, whether you or the app started it (activeJobScope app_clip_video or app_clip_image, no job to poll; retry later), or another job runs on the story (with pollUrl). A clip video whose characters have no character sheet yet, or whose background has no picture yet, answers 409 ASSETS_REQUIRED (nothing charged) with missingCharacters, missingScenes and clipIds in the error: make the cast art first (POST /assets). One live video per clip: while a clip's video is still being made (a Generate in the app, another call, a run waiting on a slow provider), a new video or video edit on that clip answers 409 CLIP_VIDEO_IN_PROGRESS (nothing charged, with runId when known): poll that run, then retry. /videos and /clips-all never refuse the whole story for one clip: a clip still being made, whose lines are longer than its video, or with nothing to work from is left out and listed in skipped with its reason (in_progress with runId, dialogue_too_long with code and details such as suggestedDurationSeconds, references_required), not charged; the rest run. When every named clip is left out the start answers that clip's refusal (409 DIALOGUE_LONGER_THAN_VIDEO with its numbers, or CLIP_VIDEO_IN_PROGRESS).

POST/api/v1/stories/:storyId/clips/:clipId/image

(Re)generate the storyboard image for ONE clip. Optional body: prompt (art direction for this shot) and imageModel. Runs as the clip panel's own image run: answers 202 { runId, runUrl, estimatedCredits }; poll GET /api/runs/:runId until it ends, then read result.status and result.imageUrl. The same Idempotency-Key answers with the run it already started.

Credits: the clip panel's image quote | Scope: stories:generate
POST/api/v1/stories/:storyId/clips/:clipId/video

(Re)generate the video for ONE clip. Optional body: videoModel, and the clip panel's pills for this run: durationSeconds (snapped up to a length the model makes) and resolution (one the model makes; GET /api/v1/models). Both are saved on the clip, as the pills save them; the aspect ratio is the story's. POST .../regenerate takes the same two. An unknown videoModel is 400; a model that cannot make the story's aspect ratio, or a duration / resolution the model does not make, is 400 invalid_video_settings with allowed in the error (aspectRatio + videoModel, durationSeconds or resolution) — an explicit pick is refused, never silently changed. A clip whose lines need more seconds than the video would have answers 409 DIALOGUE_LONGER_THAN_VIDEO (nothing charged) with clipId, speechSeconds, videoSeconds and suggestedDurationSeconds in the error: send that durationSeconds, or shorten the lines when it is null. There is no mode to pick. The selected model locks the input mode: frame models use the current clip image as start and the next clip image as end; reference models receive their supported, named image, video and voice references. Missing required clip images are rejected before charging. The final clip uses start-only where supported. Runs as the clip panel's own Generate: answers 202 { runId, runUrl, estimatedCredits, durationSeconds, resolution, aspectRatio, videoModel, requested, adjustments? } (what the run makes, and what was asked); poll GET /api/runs/:runId until it ends, then read result.status. The same Idempotency-Key answers with the run it already started; while an API job works on the clip or story it answers 409 API_JOB_RUNNING.

Credits: that clip's duration on the story's lane (returned as estimatedCredits) | Scope: stories:generate
POST/api/v1/stories/:storyId/clips/:clipId/regenerate

Rebuild ONE clip end to end — a fresh storyboard image, then a fresh video from it — as a single run: the app's Generate All over this clip with its still drawn first, so the video never starts against the old image, and a still that does not land leaves the video unstarted (nothing charged for it). The right call after changing a clip's description or cast. Optional body: prompt (art direction for the new image), imageModel, videoModel, and the clip panel's durationSeconds / resolution pills (saved on the clip). Answers 202 { runId, runUrl, estimatedCredits, breakdown, durationSeconds, resolution, aspectRatio, videoModel, requested } (what the clip's video makes, and what was asked); poll GET /api/runs/:runId: result.results[0] is the clip, its image the still.

Credits: image + video, returned as breakdown | Scope: stories:generate
POST/api/v1/stories/:storyId/clips/:clipId/grid-reference

Clip authoring supports description for scene and image context, and optional motionDescription for video movement and timed beats. Video generation uses both. When motion is empty, video generation automatically creates and saves timed motion first. Send null to prepare new motion on the next video run. Draw a multi-panel continuity reference sheet for one clip. The panels are derived from the clip's time beats — an authored beat track when motionDescription carries one, otherwise the beat plan its generation length implies — so the sheet mirrors that shot rather than a fixed set of generic moments. Two panels per beat, snapped to a supported grid layout. Starts a run and answers 202 with runId and runUrl; poll GET /api/runs/:runId until status is terminal, then read result.status: completed with the grid URL in result.imageUrl (also saved on the clip), or failed with result.error (refunded). The balance is checked before the run starts: too few credits answers 402 insufficient_credits, and a start the platform refuses answers 503 workflow_start_failed with nothing charged.

Changed 2026-10-19 (breaking): this endpoint used to answer 200 { gridImageUrl, gridData, creditsCharged } with the finished grid. It now answers 202 { runId, runUrl, status: "queued", creditsQuoted, panels, imageModel } at once. Poll GET /api/runs/:runId (MCP: get_run) every 15–30 s until status is completed, failed, canceled or needs_attention; the grid is result.imageUrl. The same Idempotency-Key answers with the run it already started (deduped: true).

Credits: one storyboard grid | Scope: stories:generate
POST/api/v1/stories/:storyId/assets/:assetId/image
POST/api/v1/stories/:storyId/characters/:assetId/sheet

Draw (or redraw) ONE character, scene or item from its description, or re-derive a character's 2×2 reference sheet and portrait crop from its current portrait. Characters are sheet-first: one generation produces the sheet and the portrait together. The answer is the new URLs when the run finishes within the request. A long one (a sheet-first character with a fallback chain) answers 202 { "status": "queued", "runId", "runUrl", "creditsCharged" }: poll GET /api/runs/:runId (runUrl) until status is completed or failed; on completion result.status is the HTTP status the request would have answered and result.body the same JSON (the asset, or { error } with the charge already refunded). The charge is made before the run starts and is settled or refunded by the run either way.

Credits: one image (a character bills its sheet price) | Scope: stories:generate
GET/api/v1/stories/:storyId/characters/:assetId/hire-looks
POST/api/v1/stories/:storyId/characters/:assetId/hire-looks

The looks a hired character brings from its creator: { bookingId, owner, pictures, canChoose, looks: [{ id, kind: "main" | "style" | "look", label, styleId, styleLabel, imageUrl, characterSheetUrl, chosen, imported, clipAssetId }] }. The main sheet always comes; chosen looks are in the episode as ready looks (imported) that never apply on their own: a clip uses one when it is picked for that clip. Names only until the hire is paid (pictures: false), pictures after. POST { lookIds } sets the extra looks to bring (ids from GET; the ones left out are removed) and answers { lookIds, imported, removed, staleClipIds, looks }: clips that used a removed look go back to the usual look and are marked out of date. Free (the looks are included in the character fee); the same as Add (free) / Remove on the hire page. A character that is not hired answers 404 not_hired; an unpaid hire or one without the face 409 looks_not_available. MCP: list_hire_looks, choose_hire_looks.

Credits: none | Scope: assets:read (GET), stories:write (POST)
POST/api/v1/stories/:storyId/clips-all

Generate every missing clip video, drawing first the still of each clip that has nothing else to reference (no cast, no pictured place or item), as ONE run: the app's Generate All, each such still drawn (as the clip panel's image run) just before its own clip's video. Running /storyboard and /videos separately lets the video pass start while images are still missing. It only fills gaps, so re-running after a partial failure is safe; a still that does not land leaves its clip's video unstarted (nothing charged for it). Answers 202 { runId, runUrl, cancelUrl, imagesToGenerate, videosToGenerate, breakdown }; poll GET /api/runs/:runId.

Credits: images + videos, returned as breakdown | Scope: stories:generate
POST/api/v1/stories/:storyId/continue

Write a NEW storyline branching off an existing clip — an alternative continuation the story keeps alongside the original, which is untouched. Required body: branchFromClipId. Optional prompt (where the story goes) and clipCount (4–24). The new clips and their images are made within the price; video is not, so animating them is a separate, separately-priced step. Runs as the editor's own continuation (a story run): answers 202 { jobId, runId, runUrl, pollUrl }; poll the job (or GET /api/runs/:runId) until it ends. A paid-value price above X-Max-Generation-Credits answers 409 with the quote and starts nothing.

Credits: the editor's continuation quote, settled to cost | Scope: stories:generate
GET/api/v1/stories/:storyId/renders

The story's finished videos, newest first, with latestSuccessful called out so a failed render is never mistaken for the current cut. A story keeps every render. Optional ?limit (max 50). Each render has width, height and duration (seconds; API renders), aspectRatio, the story's locale and its fileName (API renders are named <title>_<aspect>_<language>.mp4, e.g. glow-cola_9x16_zh-TW.mp4). API renders run in their own pool (2 at once per account, 3 across accounts) and never take the app's export slots; a render past the pool waits its turn (the job reads queued, phase waiting_for_render_slot).

Free | Scope: stories:read
POST/api/v1/stories/:storyId/clips/:clipId/video-edit

Rewrite a clip's existing video — video-to-video, so subject, composition and motion carry over. Send one of: prompt (an instruction: "make it night and rainy", "push the camera in slowly"); restyleStyleId (redraw the footage in a style preset, keeping its length); or switchAsset ({ target: { kind: "character" | "scene" | "item", id }, subject: { assetId } | { description }, updateCast? }: put the story's character, place or item named by target into the footage by its picture, in place of subject — an asset of the same kind, or a description of what to replace). restyleStyleId and switchAsset cannot be combined; with either one prompt is optional. Optional resolution (480p, 720p, 1080p — the edit dialog's pill; default the clip's, then the story's, then 720p, as in the editor). The edit keeps the source clip's length (durationSeconds is accepted for old callers and does not change it). The clip must already have a video, and the result becomes a new selectable version rather than replacing the old one. A restyle includes a frame review in its price. Runs as the clip panel's own video edit: answers 202 { runId, runUrl, estimatedCredits, durationSeconds, resolution }; poll GET /api/runs/:runId until it ends, then read result.status. A switch with updateCast (default true) points the clip's cast and speakers at the target when the edit lands.

Credits: the clip panel's edit price (source and output seconds at the edit resolution); estimatedCredits is the accepted price | Scope: stories:generate
GETPOST/api/v1/stories/:storyId/clips/:clipId/version

GET lists the clip's versions as its Versions list shows them, newest first, each with kind (generate, regenerate, edit, restyle, switch, version, delivery, upload, image, hire_review), imageUrl / videoUrl, durationSeconds, active and selectable. POST { "generationId" } makes the clip show that version: its media, its delivered length (the old trim is cleared) and a timeline span to match — the clip panel's own switch. Refused with 409 and nothing changed: HIRE_REVIEW_NOT_LIVE, CASTING_STALE, VERSION_HAS_NO_MEDIA, VERSION_NOT_READY or approved_clip_locked. Series editors and a video job's creator may switch, as in the app. MCP: select_clip_version; the clip image's own versions: select_clip_image_version.

Free | Scope: stories:read (GET), stories:write (POST)
POST/api/v1/stories/:storyId/swap-asset

Put one story asset in place of another — a character, an item or a background — in one clip (scope: "clip", clipId) or in every clip that uses it (scope: "story"), keeping the script and other clips; a character's spoken lines are re-voiced in the new character's voice inside the same video step, and its price includes that part (voice: lines, credits; refunded alone when the voice cannot be recorded, and the run answers voice.status: "not_recorded"). Body: { scope, clipId?, assetType: "character" | "item" | "scene", from, to, redo: "image" | "video" | "image_video", wardrobe?, light?, resolution?, steps?, dryRun? }. resolution (480p · 720p · 1080p) sets the video steps; omitted, each clip takes its own default, as the clip panel's edit dialog opens at (the clip's resolution, then the story's, then 720p). Per clip it is the clip panel's Switch asset (.../clips/:clipId/image or .../video-edit with switchAsset), and when each lands the clip's cast and dialogue speakers name the new asset. dryRun: true answers the plan and total without charging; otherwise each clip step is charged its own quoted price as it starts (X-Max-Generation-Credits caps the whole swap) and the answer lists each step's runId (each step is the app's own run: poll GET /api/runs/:runId; an image and a video step of one clip run side by side). Its status is started, partial or failed (409): steps that did not start are in retry.steps (nothing charged for them); resend with the same Idempotency-Key, or a new request with steps: retry.steps, and only those run. A clip where a switch to that asset is already running, in the app or from an earlier call, is listed in skipped (with its runId). Clip image and video-edit also take switchAsset / restyleStyleId directly for one clip. MCP: swap_asset.

Credits: the sum of the per-clip switch prices | Scope: stories:generate
POST/api/v1/stories/:storyId/versions

Make a new version of your story in another language, aspectRatio (16:9, 9:16, 1:1, 21:9) and/or stylePreset. Every clip keeps its media; clips are cropped or fitted to the new frame and text layers re-laid out. A language change finds where each line is spoken and translates the script by itself. A format or style version is free and made at once (201). A language version first answers a quote (200, status: "quote"): translationCredits (the copy dialog's price, charged when the version is made), laterSteps (what the paid steps after it will ask) and a confirmToken; send the same body plus confirmToken to make it, once per token. Over X-Max-Generation-Credits is 409 generation_budget_exceeded, a short wallet 402 insufficient_credits; nothing is made or charged then. Without placement, a version is saved on its own, linked to its episode, and a plain copy of an episode in a story joins it as the next episode ("series" files it as the next episode anyway). Optional clipFormat ({ clipId: "crop" | "fit_blur" | "rerender" }). Stories with hired or licensed characters can't be copied (409, error code hired_episode or licensed_cast); one that uses another creator's character is 409 external_asset. MCP: create_story_version.

Credits: a language version's translation (quoted first) | Scope: stories:generate
GET/api/v1/stories/:storyId/versions

Every story made from this one, and from those (versions of versions, up to 3 levels), newest first: language, format and style versions and template recasts. Each has depth (1 = made from this story), parentStoryId, versionOf, kind (language, format, style, copy, template, template_claim), language, aspectRatio, stylePreset, a version status (done, running, attention, ready) and links. MCP: list_story_versions. GET /api/v1/stories/:storyId and the story list carry the same provenance object.

Free | Scope: stories:read
GETPOST/api/v1/stories/:storyId/version

GET lists what is left in a version, in order — prepare (automatic, free), visual (restyle / AI re-render), voice (re-voice in the new language), framing — each with its status and any failed clips. POST { "step": "visual" | "voice" } returns the price and a hash; POST it again with quoteHash to run it. Clips that fail are refunded one by one; POST again to retry only those. "step": "all" runs everything left with one price. A clip the step can't price or run (an unreadable length, or a re-render at 21:9) is listed in skipped with its code and is not charged. POST { "step": "prepare" } starts a failed prepare step (measure + translate) again for free (202). Refusals are 409 with busy, blocked (wait for the translation), quote_changed or nothing. A charge over X-Max-Generation-Credits is 409 generation_budget_exceeded with nothing charged; the charge counts toward the key's spend.

GET /api/v1/stories/:storyId/version/lines lists every spoken line next to its original, with the seconds it takes to say and the seconds it has; PUT it with { "edits": [{ "clipId", "index", "text" }], "keep": [...], "retake": [...] } to fix lines (retake records a line again with the same words) — a voiced clip re-voices only those lines.

Credits: the quoted price | Scope: stories:read (GET), stories:generate (POST)
Rigenera una ripresa
# Regenerate clip 3's image, then its video — the rest of the story is untouched
curl -X POST https://www.yoh.app/api/v1/stories/STORY_ID/clips/CLIP_ID/image \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"
# Poll GET /api/runs/RUN_ID until completed

curl -X POST https://www.yoh.app/api/v1/stories/STORY_ID/clips/CLIP_ID/video \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"videoModel":"bytedance/seedance-2.0"}'
# Poll GET /api/runs/RUN_ID until completed → the clip's videoUrl is replaced

Modifica della storia

Direct the story instead of only re-rolling it: rewrite a shot, retime it, add a beat, reorder, or cut one. These are immediate (no job to poll) and cost no credits. A clip's description provides scene and image context; optional motionDescription provides video choreography. Video uses both — edit the appropriate field, then call that clip's /image or /video to re-shoot it with the new direction. Access follows the editor: anyone with edit access to the story (its owner, a series collaborator with edit rights, a job's creator) may edit it with their own key; others get 404.

PATCH/api/v1/stories/:storyId/clips/:clipId

Edit a clip. Send only what you want to change: title, description, motionDescription, stillPrompt (the prompt the clip image is drawn from; null clears it; at most 4000 characters), duration, generationDuration, resolution, transitionStyle, sceneId, characterIds, itemIds, dialogue, audioFx, onScreenText (title cards, taglines and lower thirds shown over the video: [{ text, role: title|tagline|label|other, start, end, position: top|center|bottom|lower_third }]; [] clears it).

Media columns (imageUrl, videoUrl, generation history) are deliberately not writable — those belong to the pipelines. Use the clip's /image and /video endpoints to change them.

It is the editor's own save: new dialogue grows the clip when the speech grew (never shrinks it) and keeps the motion's quotes in step; a changed duration is pinned and held to the story's video model (past its maximum: 400 duration_exceeds_lane with allowed: { min, max, tiers }; within range snapped up to whole seconds, with generationDuration and the timed motion beats moved with it, as the clip panel's duration pill does); the answer, and GET on a clip or the clip list, carries resolutionMade: { target, value, adjusted, reason? } (the asked resolution against what the story's model makes); a visual edit on a clip that has an image or video answers scriptEdit (that media is out of date until you regenerate). Refusals, each 409 with nothing written: CLIP_IN_HIRE (the clip is in an unfinished hire and keeps its hired character; bookingId, characterId), approved_clip_locked (an approved collaboration version), DELIVERY_EDIT_CONFLICT (a delivered take's history), CASTING_STALE (made before the casting changed), story_locked (a job or template run holds the story).

Credits: 0 | Scope: stories:write
POST/api/v1/stories/:storyId/clips

Insert a clip. title and description required; place it with afterClipId or beforeClipId (omit both to append). Optional: the PATCH fields, plus storylineId (a branch of this story). Following clips shift down automatically and looks keep starting at their clip. The new clip has no image or video yet. 409 CLIP_WORKSPACE: a clip-hire workspace holds only its hired clip.

Credits: 0 | Scope: stories:write
POST/api/v1/stories/:storyId/clips/:clipId/duplicate

The editor's Duplicate: a copy right after the clip with its text, still prompt, cast, items, scene, storyline, dialogue, sound cues, on-screen text and its made image/video with their versions. Later positioned clips move right (shiftedClipIds). MCP: duplicate_clip.

Credits: 0 | Scope: stories:write
GETPOST/api/v1/stories/:storyId/clips/:clipId/audio-sync

A talking clip's audio sync (its dialogue fitted to the delivered video), the clip panel's own read and actions. GET answers audioFinishing (status: queued, running, ready, needs_review or original; stage, error, errorCode, retryable, warnings, runId), revoice and, for needs_review, a candidate. POST { "action": "retry" | "accept" | "original" | "restore" | "background", "runId"?, "volume"? }: retry resumes a failed sync, accept uses the fitted dialogue a needs_review sync prepared, original plays the video's own audio (reversible), restore goes back to the fitted dialogue and background, background sets the separated background's volume (0–1). 409 with a code when the state does not allow it (story locked, result changed, nothing to retry, re-voice running). MCP: get_audio_sync, fix_audio_sync.

Credits: 0 | Scope: stories:read (GET), stories:write (POST)
PATCH/api/v1/stories/:storyId/clips

Reorder. Body: { "clips": [{ "id": "...", "order": 0 }, …] } — send every clip with a contiguous 0-based order. Looks (a running injury, a change of outfit) keep starting at the clip they started at.

Credits: 0 | Scope: stories:write
DELETE/api/v1/stories/:storyId/clips/:clipId

Cut a clip; the remaining orders close up. A story keeps at least one clip (400 LAST_CLIP); a clip a storyline branches from stays (409 BRANCH_POINT, with its storylineId); a clip in an unfinished hire stays (409 CLIP_IN_HIRE).

Credits: 0 | Scope: stories:write
Riscrivi una ripresa, poi rigenerala
# 1. Rewrite the direction + retime the shot (immediate, free)
curl -X PATCH https://www.yoh.app/api/v1/stories/STORY_ID/clips/CLIP_ID \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "description": "The keeper climbs the stairs as the lamp flickers behind him.",
    "duration": 7
  }'

# 2. Re-shoot it with the new direction
curl -X POST https://www.yoh.app/api/v1/stories/STORY_ID/clips/CLIP_ID/image \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"
curl -X POST https://www.yoh.app/api/v1/stories/STORY_ID/clips/CLIP_ID/video \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"
Esempio passo dopo passo
# Step 1: Generate story text (~1-2 min)
curl -X POST https://www.yoh.app/api/v1/stories/generate \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt":"A samurai cat guards a cherry blossom tree","contentType":"cinematic_story","scope":"story"}'
# Poll jobId until completed → get storyId

# Step 2: Generate storyboard images (~3-5 min)
curl -X POST https://www.yoh.app/api/v1/stories/STORY_ID/storyboard \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"
# Poll until completed

# Step 3: Generate clip videos (~1-3 min per clip)
curl -X POST https://www.yoh.app/api/v1/stories/STORY_ID/videos \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"
# Poll GET /api/runs/RUN_ID until completed

# Step 4: Render final MP4 (~1-2 min)
curl -X POST https://www.yoh.app/api/v1/stories/STORY_ID/render \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"
# Poll until completed → videoUrl

Verifica stato del job

Ottieni lo stato del job

GET/api/v1/stories/jobs/:jobIdscope: stories:read

Interroga questo endpoint dopo aver chiamato POST /api/v1/stories/generate. Il job richiede solitamente 8–15 minuti a seconda della lunghezza della storia e dell’attivazione di renderVideo. Si consiglia di verificare ogni 15–30 secondi.

Ciclo di vita dello stato del job

queuedgenerating_storygenerating_assetsgenerating_videosrendering_videocompletedofailed

Which statuses you see depends on the scope you requested — a story job goes straight from generating_story to completed. A transient failure sends the job back to queued with error set to a retry message; that is not terminal, so treat only completed and failed as final states.

Stop. POST /api/v1/stories/jobs/:jobId/cancel (scope stories:write) stops a job the way the app's Stop does: no further paid step starts, work already sent to the provider finishes and is kept, and everything not delivered is refunded once. It answers { outcome: "cancelled" | "stopping" | "already_finished", status }; stopping means a clip is still in flight, so poll until the job reads cancelled (a final state too). POST /api/v1/runs/:runId/cancel stops a batch run (Generate All, started in the app or by /videos, /clips-all or /regenerate; a clip-images batch such as /storyboard) with the app's own Stop: no more clips start; clips never started are never charged. A single clip run's runId (a clip video, video edit or image) cannot be stopped: it answers 409 not_cancellable, and the run finishes and settles itself (a failure is refunded). MCP: cancel_generation.

Reading a job (changed 2026-10-20). A story job that rendered nothing (no render scope, no renderVideo) answers videoUrl: null; its first clip's video is firstClipVideoUrl, never the finished film. A failed clip image job answers failure { category, reason, message } like a clip video. A failed or cancelled job whose refund has not been settled yet says settlement: "pending". A 402 insufficient_credits carries required, balance and topUpUrl.

Campi della risposta

CampoTipoDescrizione
jobIdstringIdentificatore univoco del job.
statusstringStato attuale. Vedi il ciclo di vita sopra.
progressnumberIntero da 0 a 100 che indica la percentuale di completamento.
storyIdstring|nullImpostato al termine della generazione della storia. Usalo per recuperare gli Asset.
renderVideobooleanIndica se è stato richiesto un MP4 finale composto.
videoUrlstring|nullURL assoluto del video quando lo stato è completato. Può essere un MP4 composto (renderVideo: true) o il video AI della prima clip (renderVideo: false).
errorstring|nullMessaggio di errore leggibile. Impostato in caso di fallimento — e anche mentre un job viene riprovato, quando lo stato torna a queued. Sempre null in caso di successo.
waitingFor / messagestring (optional)Presente quando un job attende il risultato di un provider (lo stato rimane queued, l’errore è null): il valore è "provider" e il messaggio indica cosa sta aspettando. Continua a verificare.
executionobject (optional)L’esecuzione del Workflow a cui appartiene il job: { version, runId, phase, heartbeatAt, status }. Seguilo su GET /api/runs/:runId (o il suo /stream). Assente nei job più vecchi.
createdAt / startedAt / completedAtstring (ISO)Timestamp.
runId / runUrlstring (202 only)Nella risposta 202 di ogni avvio di job (non in questa verifica): il run avviato per il job e l’URL del suo stato. Opzionale; verificare questo endpoint è sufficiente.

Storie

Stop. POST /api/v1/stories/jobs/:jobId/cancel (scope stories:write) stops a job the way the app's Stop does: no further paid step starts, work already sent to the provider finishes and is kept, and everything not delivered is refunded once. It answers { outcome: "cancelled" | "stopping" | "already_finished", status }; stopping means a clip is still in flight, so poll until the job reads cancelled (a final state too). POST /api/v1/runs/:runId/cancel stops a batch run (Generate All, started in the app or by /videos, /clips-all or /regenerate; a clip-images batch such as /storyboard) with the app's own Stop: no more clips start; clips never started are never charged. A single clip run's runId (a clip video, video edit or image) cannot be stopped: it answers 409 not_cancellable, and the run finishes and settles itself (a failure is refunded). MCP: cancel_generation.

Elenca storie

GET/api/v1/storiesscope: stories:read

Restituisce un elenco paginato delle tue storie.

Parametri della query

ParametroPredefinitoDescrizione
page1Numero di pagina (≥ 1).
limit20Risultati per pagina (1–100). Capped at 100.
status—Filtra per stato della storia.

This is the only endpoint that returns a pagination envelope alongside data:

{
  "data": [ { "id": "cmnk9cibl0004q3vpijkqfwl4", "title": "...", "status": "completed" } ],
  "pagination": { "page": 1, "limit": 20, "total": 137 }
}

Ottieni una storia

GET/api/v1/stories/:storyIdscope: stories:read

Restituisce i metadati completi di una singola storia, inclusi i conteggi dei suoi personaggi, Scene, elementi e clip.

{
  "id": "cmnk9cibl0004q3vpijkqfwl4",
  "title": "A robot chef cooks in a futuristic kitchen",
  "status": "completed", "aspectRatio": "9:16", "locale": "en",
  "counts": { "characters": 3, "scenes": 4, "items": 6, "clips": 6 },
  "createdAt": "2026-04-04T11:37:04.662Z"
}

Panoramica degli Asset

Al termine di un lavoro, puoi recuperare tutti gli Asset generati per la storia utilizzando lo storyId restituito dal lavoro. Tutti gli endpoint degli Asset richiedono lo scope assets:read.

GET /api/v1/stories/:id/characters

Personaggi — nome, descrizione, ruolo, imageUrl, informazioni sulla Voce

GET /api/v1/stories/:id/scenes

Scene — descrizione, momento della giornata, meteo, illuminazione, imageUrl

GET /api/v1/stories/:id/items

Oggetti di scena / elementi — descrizione, importanza, imageUrl

GET /api/v1/stories/:id/clips

Clip — narrazione, durata, videoUrl, imageUrl, audioUrl

Personaggi

Elenco personaggi

GET/api/v1/stories/:storyId/charactersscope: assets:read
{
  "data": [{
    "id": "char_abc123", "name": "Chef Axon", "role": "protagonist",
    "description": "A robot chef with a warm personality",
    "imageUrl": "https://cdn.example.com/characters/chef-axon.jpg",
    "voiceName": "Neutral-EN", "order": 0
  }]
}

Clip e Video

Elenco clip

GET/api/v1/stories/:storyId/clipsscope: assets:read

Ogni clip è un segmento di scena con il proprio video, immagine statica e audio generati dall’AI. Tutti i campi URL sono assoluti e accessibili pubblicamente.

{
  "data": [{
    "id": "clip_001", "order": 0, "narration": "In the year 2157...",
    "duration": 8,
    "videoUrl": "https://cdn.example.com/generated/video/clip1.mp4",
    "imageUrl": "https://cdn.example.com/generated/image/clip1.jpg",
    "audioUrl": null, "status": "completed"
  }]
}

Quando renderVideo è false, il campo videoUrl del lavoro punta al video della prima clip. Usa questo endpoint per ottenere l’URL del video per ogni singola clip.

Libreria Asset della storia

Carica un asset una volta, usalo per sempre

POST/api/v1/series/:seriesId/assetsscope: assets:write

La stessa libreria in cui scrive il pannello asset dello Studio. Carica un personaggio, uno sfondo, un oggetto o un riferimento di stile, conserva l’ID restituito e usalo al momento della generazione passando quell’ID come seriesAssetId nell’array degli asset — non serve creare un nuovo link immagine per ogni video. Le immagini che passi vengono ospitate sul nostro storage, quindi l’ID continua a funzionare anche dopo la scadenza del tuo URL di caricamento originale.

CampoTipoDescrizione
typestringcharacter, scene, item, o reference.
namestringNome visualizzato. È anche la chiave usata per le corrispondenze nelle generazioni successive.
imageUrlstringURL pubblico dell’immagine. In alternativa invia imageBase64.
itemTypestringSolo per gli oggetti: prop, product, o logo. Un logo viene composto in piano, senza profondità 3D.
isHeroProductbooleanSolo per gli oggetti: il prodotto protagonista di questo annuncio. Appare in ogni clip.
isPrimaryBackgroundbooleanSolo per le scene: lo studio o il set riutilizzato in ogni inquadratura del presentatore.
seriesDuplicatestringSolo per i personaggi, dopo aver chiesto all’utente: "new" aggiunge un secondo personaggio con un nome già presente nella storia.
  • Invia un singolo asset, o un array "assets" per inserirne fino a 100 contemporaneamente.
  • Per impostazione predefinita, gli asset vengono uniti in base alla corrispondenza esatta del nome, quindi caricare nuovamente lo stesso catalogo è un’operazione idempotente — tranne per un personaggio il cui nome esiste già nella storia: in quel caso riceverai 409 SERIES_NAME_EXISTS con il personaggio esistente e nulla verrà salvato. Chiedi all’utente, poi invia seriesDuplicate "new" per aggiungerne un secondo, oppure passa ?mergeStrategy=exact per aggiornare quello esistente. ?mergeStrategy=fuzzy tollera i cambi di nome; insert crea sempre un nuovo asset.
  • DELETE restituisce 409 SERIES_ASSET_IN_USE con gli episodi che usano ancora l’asset (storie: id, titolo, clipCount) e non rimuove nulla. Chiedi all’utente, poi invia confirm: true (nel body o ?confirm=true): gli episodi manterranno la propria copia e le loro clip non cambieranno. Un personaggio in un casting aperto restituisce 409 SERIES_ASSET_HIRED (hires) e non può essere rimosso finché l’ingaggio non termina.
  • Imposta isHeroProduct su un oggetto (ad_spot) o isPrimaryBackground su una scena (news_analysis / persona_channel) per fissarli. Al momento della generazione, il pin si risolve automaticamente — non dovrai mai scrivere heroItemId a mano.
AmbitoGarantisce l’accesso a
GET/api/v1/series
POST/api/v1/series
GET/api/v1/series/:seriesId
PATCH/api/v1/series/:seriesId
GET/api/v1/series/:seriesId/assets?type=character
POST/api/v1/series/:seriesId/assets
PATCH/api/v1/series/:seriesId/assets/:assetId
DELETE/api/v1/series/:seriesId/assets/:assetId
DELETE/api/v1/series/:seriesId/assets/:assetId/looks/:lookId
POST/api/v1/series/:seriesId/assets/:assetId/looks/:lookId
POST/api/v1/uploads
PATCH/api/v1/stories/:storyId/characters/:assetId
PATCH/api/v1/stories/:storyId/scenes/:assetId
PATCH/api/v1/stories/:storyId/items/:assetId
POST/api/v1/stories/estimate
GET/api/v1/credits
GET/api/v1/models
POST/api/v1/stories/:storyId/swap-asset
POST/api/v1/series/:seriesId/uploads
POST/api/v1/stories/:storyId/upload
GET/api/v1/stories/:storyId/upload
POST/api/v1/uploads/presign
GET/api/v1/stories/:storyId/media

Start from your own video (MP4, MOV or WebM, up to 1 GB and 10 minutes; free): POST /api/v1/series/:seriesId/uploads makes a draft episode and answers a one-time upload.url that takes one PUT of the file, straight to storage (upload.command is the curl line). Then POST /api/v1/stories/:storyId/upload verifies it, fills an empty title and description from the video, sets its style, picks a cover and cuts it into editable clips; it answers verifying until the check is done, so call it again. GET /api/v1/stories/:storyId/upload reports cutting (with progress) until ready, and links.upload is the page that shows it.

Start from a video
curl -X POST https://www.yoh.app/api/v1/series/series_abc/uploads \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"fileName":"trip.mp4"}'
# → { "storyId": "story_123", "upload": { "url": "https://…", "command": "curl --fail-with-body -sS -X PUT -T <path-to-video> '…'" }, "links": { … } }

curl --fail-with-body -sS -X PUT -T ./trip.mp4 "<upload.url>"

curl -X POST https://www.yoh.app/api/v1/stories/story_123/upload \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"
# → { "status": "cutting", "title": "…", "cut": { "progress": 10, … }, "links": { "upload": "…", "workspace": "…" } }

End to end — put a brand's logo in an ad, and keep the id for every ad after it:

1 — crea la storia (una volta)
curl -X POST https://www.yoh.app/api/v1/series \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"title":"Acme brand films","styleGuide":{"cinematicStyle":"clean product cinematography"}}'
# → { "series": { "id": "series_abc", ... } }
2 — carica il logo (una volta) e conserva l’id
curl -X POST https://www.yoh.app/api/v1/series/series_abc/assets \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
        "type": "item",
        "name": "Acme Logo",
        "itemType": "logo",
        "description": "Wordmark, orange on white",
        "imageUrl": "https://your-admin.example.com/tmp/logo.png"
      }'
# → { "asset": { "id": "series-item-...", "imageUrl": "https://...blob..." } }
# That imageUrl is ours now — your temporary link can expire.
3 — genera un annuncio che lo includa (ogni volta)
curl -X POST https://www.yoh.app/api/v1/stories/generate \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
        "prompt": "A 30-second spot for the Acme cordless drill",
        "contentType": "ad_spot",
        "seriesId": "series_abc",
        "assets": [
          { "seriesAssetId": "series-item-...", "isHeroProduct": true }
        ]
      }'
# → { "jobId": "...", "pollUrl": "/api/v1/stories/jobs/..." }

Step 2 happens once per asset, not once per video. Step 3 repeats forever with the same id — and because the asset is pinned, the logo is guaranteed in every clip even if the script never says its name. To check the cost before committing, POST the same body to /api/v1/stories/estimate.

Asset della serie

Registra l’immagine di un personaggio per una serie

POST/api/v1/series-assets/ensure-character-imagescope: assets:write

POST /api/v1/series-assets/ensure-character-image funziona ancora ed è invariato, ma gestisce solo i personaggi. È preferibile usare questo endpoint.

Carica e salva un’immagine di riferimento del personaggio per una serie, in modo che l’AI utilizzi un volto e uno stile coerenti in tutte le storie di quella serie. Questa operazione è idempotent: chiamarla più volte con lo stesso nome personaggio è sicuro.

CampoTipoDescrizione
seriesIdstringID della serie a cui associare il personaggio.
characterNamestringIl nome del personaggio (usato come chiave univoca all’interno della serie).
imageUrlstringURL accessibile pubblicamente dell’immagine di riferimento del personaggio.

Pubblica sui Social

Invia un video finito direttamente a un account collegato, così un'automazione può gestire genera → render → pubblica con un'unica credenziale. Collega prima gli account nell'app; questo endpoint pubblica su di essi.

Pubblica un video

POST/api/v1/social/publishscope: social:publish

Restituisce 202 con { postId, status: "publishing" } e carica in background: interroga l’endpoint di stato qui sotto. Passa wait: true per attendere invece la fine del caricamento (può richiedere minuti). L’URL del video deve corrispondere a un render riuscito o al video originale caricato in questa storia. Gli stream YouTube sono limitati agli indirizzi pubblici e al limite di caricamento esistente di 512 MB.

CampoTipoStatoDescrizione
socialAccountIdstringobbligatorioUn account collegato di proprietà dell’utente della tua chiave.
storyIdstringobbligatorioUna storia di proprietà dell’utente della tua chiave.
videoUrlstringobbligatorioURL MP4 pubblico: il videoUrl di un job completato.
platformstringobbligatoriofacebook · instagram · tiktok · threads · youtube
captionstringopzionaleDidascalia del post.
youtubeobjectopzionale{ title, privacyStatus, categoryId, tags } — solo YouTube.
durationSecnumberopzionaleUsato per la convalida preliminare della piattaforma.
aspectRatiostringopzionaleUsato per la convalida preliminare della piattaforma.
fileSizeBytesnumberopzionaleUsato per la convalida preliminare della piattaforma.
waitbooleanopzionaleAttendi fino al completamento del caricamento. Il valore predefinito è false.
curl -X POST https://www.yoh.app/api/v1/social/publish \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "socialAccountId": "acct_123",
    "storyId": "STORY_ID",
    "videoUrl": "https://cdn.example.com/video/final.mp4",
    "platform": "youtube",
    "caption": "Episode 1 is live",
    "youtube": { "title": "The Lighthouse — Ep 1", "privacyStatus": "public" }
  }'

Verifica stato pubblicazione

GET/api/v1/social/publish/:postIdscope: social:publish

Ciclo di vita: publishing → published | failed.

Account gestiti

Per le piattaforme che servono molti clienti. Invece di avere un'unica chiave e un unico pool di crediti per tutti — dove un cliente attivo esaurisce il saldo per gli altri e nessuno può sapere chi ha speso cosa — configura un account per ogni cliente e ricarica ognuno dal tuo saldo. I tuoi clienti non si registrano mai qui né ci pagano; il rapporto commerciale resta tuo.

Configura un account

POST/api/v1/accountsscope: accounts:manage

externalId è il tuo ID personale per il cliente. Chiamare due volte con lo stesso ID restituisce l'account esistente invece di crearne un secondo, quindi un tentativo di richiesta ripetuto è sicuro. La chiave API viene restituita una volta, alla prima creazione — memorizziamo un hash e non possiamo mostrarlo di nuovo, quindi conservalo quando lo ricevi. Un nuovo account inizia con un saldo pari a zero.

CampoTipoDescrizione
externalIdstringObbligatorio. Il tuo ID per questo cliente — ad esempio, un ID tenant. Univoco per piattaforma.
namestringEtichetta opzionale, per i tuoi report.

Sostituisci la chiave di un account gestito

POST/api/v1/accounts/:accountId/api-keysscope: accounts:manage

Se la chiave iniziale è andata persa, chiama questo endpoint con la chiave della piattaforma proprietaria e senza corpo della richiesta. Usa l'ID dell'account o l'externalId. Revoca in modo atomico le chiavi precedenti dell'account e restituisce una nuova apiKey una sola volta (201). Conservala in modo sicuro. Ripetere questa chiamata ruota nuovamente la chiave; i normali tentativi di provisioning dell'account non sostituiscono mai una chiave funzionante.

Ricarica un account

POST/api/v1/accounts/:accountId/creditsscope: accounts:manage

Sposta i crediti dal tuo saldo a quello dell'account — si tratta di un trasferimento, non di una concessione, quindi puoi distribuire solo ciò che hai effettivamente acquistato. Restituisce 402 quando il tuo saldo non è sufficiente. :accountId accetta sia il nostro ID account che il tuo externalId.

CampoTipoDescrizione
amountintegerObbligatorio. Crediti da spostare. Deve essere un valore positivo.
idempotencyKeystringPassa l'ID della tua fattura o del periodo di abbonamento. Una chiamata ripetuta o riconsegnata restituirà il trasferimento originale invece di ricaricare l'account due volte. Riprova con la stessa chiave, destinatario e importo. Una ripetizione non trasferisce nuovamente i crediti, anche se il saldo della piattaforma è ora esaurito. La modifica del destinatario o dell'importo restituisce 409. Le chiavi troppo lunghe vengono rifiutate anziché troncate.
descriptionstringNota opzionale, mostrata su entrambi i lati del trasferimento nella cronologia dei crediti.

GET /api/v1/accounts elenca i tuoi account con i relativi saldi e la spesa totale; GET /api/v1/accounts/:accountId/credits ne legge uno. La chiave di un account gestito ha solo permessi di generazione — non può mai creare o ricaricare account autonomamente.

Claude Code & Codex (MCP)

Yoh include un server MCP affinché gli agenti AI (Claude Code, Codex, Claude Desktop o qualsiasi client MCP) possano creare e modificare storie nel tuo account: scrivi una nuova storia da un’idea, aggiungi i suoi personaggi e genera il video, oppure cambia il contenuto delle clip e i dialoghi, sposta e taglia elementi nella timeline e aggiungi overlay a mano libera. Qualsiasi operazione che consumi crediti attende ogni volta la tua approvazione esplicita. Segue le stesse regole dell’Editor nel browser, quindi una modifica fatta da terminale apparirà esattamente come se avessi trascinato gli elementi.

Tre modi per usarlo

Scegli quella più adatta agli strumenti del tuo agent. La skill di Yoh qui sotto li insegna tutti e tre.

  • MCP + browser (consigliato in Codex, Claude Code e nelle app Claude) L'agent lavora tramite questi strumenti MCP e gestisce una scheda del browser accanto: dopo ogni passaggio apre il link contenuto nella risposta (la tabella dello Script dopo una nuova storia, il pannello della clip dopo un video della clip, l'elenco Genera tutto mentre un'operazione è in corso, l'editor avanzato per la timeline e i livelli di testo, l'MP4 del render) e controlla il risultato sulla pagina reale. Accedi una volta in quel browser con lo stesso account della chiave API. MCP e la pagina condividono i medesimi dati: la pagina dell'episodio si aggiorna entro pochi secondi da una modifica MCP e l'agent ricarica l'editor avanzato dopo una modifica alla timeline. Ogni spesa passa attraverso un solo percorso: il preventivo MCP o la finestra di dialogo del prezzo dell'app.
  • Solo browser (senza chiave API) L'agent lavora sulle pagine di yoh.app nel tuo browser, proprio come faresti tu: Crea → Storia, la tabella dello Script e il pannello della clip, l'editor del personaggio e il suo selettore di modelli, Genera tutto, l'editor avanzato, le versioni e l'esportazione. Ogni spesa passa attraverso la finestra di dialogo del prezzo dell'app e l'agent non inserisce mai i dati di pagamento o il tuo codice di accesso.
  • Solo MCP (headless) Per script, CI e agenzie che creano molte varianti: quote → confirmToken per ogni spesa, monitoraggio con get_job / get_run, interruzione con cancel_generation, creazione di varianti con create_story_versions e generate_all_clips, e download dell'URL video di ogni render terminato. Nessun browser necessario.

Esempio in ogni modalità: un annuncio di 16 secondi in 9:16 in inglese e giapponese, scritto in una storia con il suo prodotto, generato, trasformato in versione giapponese e renderizzato due volte.

Connetti

Consigliato: accedi con Yoh, senza chiave API. Usa esattamente questo indirizzo (yoh.app senza www reindirizza, e l’accesso controlla l’indirizzo). In Claude Code:

claude mcp add --transport http --scope user yoh https://www.yoh.app/api/mcp

Poi digita /mcp, scegli yoh, poi Authenticate, accedi a Yoh nel browser che si apre con l’account che vuoi usare e approva.

In Codex (CLI, estensione IDE o app desktop di ChatGPT), aggiungi il server e accedi, poi imposta tool_timeout_sec = 300 sotto [mcp_servers.yoh] in ~/.codex/config.toml e riavvia Codex:

codex mcp add yoh --url https://www.yoh.app/api/mcp
codex mcp login yoh
  • App desktop di Claude o claude.ai: Customize → Connectors → + Add → Add custom connector, chiamalo Yoh, incolla l’indirizzo, poi Connect e accedi. Attivalo in ogni chat da + → Connectors. Nei piani Team o Enterprise lo aggiunge prima un proprietario.
  • Cursor: aggiungi yoh con questo indirizzo in ~/.cursor/mcp.json, poi accedi quando Cursor lo chiede.
  • ChatGPT: Plugins → + → Add custom MCP server, chiamalo Yoh, incolla l’indirizzo e accedi. Alcuni piani richiedono che un amministratore consenta i server personalizzati.

Verifica: chiedi al tuo agente di eseguire get_credits; dovrebbe mostrare il tuo saldo Yoh. Puoi vedere e scollegare le app collegate in Impostazioni → Chiavi API → App collegate.

Per far vedere al tuo agente le pagine che modifica: Claude Code con claude --chrome (l’estensione Claude in Chrome), l’app desktop di Claude con il connettore Claude in Chrome, oppure Codex nell’app desktop di ChatGPT con il suo browser. Lo skill dice all’agente quando guardare.

Oppure usa una chiave API (script, CI, app senza accesso)

Crea una chiave API su /api-keys. Per creare nuove storie e generare video, includi storie:generate; per modificare senza spendere, sono sufficienti storie:read e storie:write. Poi in Claude Code:

claude mcp add --transport http yoh https://www.yoh.app/api/mcp \
  --header "Authorization: Bearer sk_live_YOUR_API_KEY"

Oppure salva una configurazione di progetto così l’intero team ottiene la connessione all’apertura della repo, con ogni membro che fornisce la propria chiave tramite env:

.mcp.json
{
  "mcpServers": {
    "yoh": {
      "type": "http",
      "url": "https://www.yoh.app/api/mcp",
      "headers": { "Authorization": "Bearer ${YOH_API_KEY}" },
      "timeout": 900000
    }
  }
}

In Codex, aggiungi il server a ~/.codex/config.toml e imposta YOH_API_KEY nella tua shell:

~/.codex/config.toml
# export YOH_API_KEY=sk_live_YOUR_API_KEY
[mcp_servers.yoh]
url = "https://www.yoh.app/api/mcp"
bearer_token_env_var = "YOH_API_KEY"
tool_timeout_sec = 300

Installa la skill di Yoh

La skill insegna al tuo agent come creare e modificare bene una storia di Yoh: iniziare in una serie, valutare il prezzo prima di spendere e guardare le clip prima di giudicarle. È un unico file, tenuto aggiornato con il server. Esegui la riga per il tuo agent, oppure scarica SKILL.md

# Claude Code
mkdir -p ~/.claude/skills/yoh && curl -fsSL https://www.yoh.app/skills/yoh/SKILL.md -o ~/.claude/skills/yoh/SKILL.md

# Codex
mkdir -p ~/.agents/skills/yoh && curl -fsSL https://www.yoh.app/skills/yoh/SKILL.md -o ~/.agents/skills/yoh/SKILL.md

Poi chiedi semplicemente: "crea una storia di 60 secondi su un infermiere del turno di notte che sente i fantasmi", oppure "velocizza il ritmo dell’episodio 3: taglia i tempi morti, sposta i sottotitoli sui beat e avvia il render". Esegui /mcp in Claude Code o Codex per verificare la connessione.

Cosa può fare l’agente

StrumentiAmbitoEsempi
Letturastories:readlist_stories · get_story · list_story_versions · get_timeline · get_clip · get_job · get_run · get_credits · list_models · get_asset_images · get_soundtrack · list_overlays · get_revoice · get_audio_sync · list_style_presets · list_voices · list_renders · list_audio_assets · estimate_storyget_clip allega l'immagine dello storyboard e, con withFrames, dei fotogrammi reali campionati dal video generato — l'unico modo in cui l'agent può vedere l'aspetto effettivo di una clip. get_asset_images fa lo stesso per cast, set e oggetti di scena.
Template versionsstories:write / stories:read / assets:readcreate_template_version · get_template_version · list_template_destinations · list_template_assets · update_template_version · analyze_template_version · get_template_analysis · accept_template_adaptation · quote_template_version · commit_template_version · cancel_template_version · fork_template_versionMap existing or newly created series assets, review wording and language, then create a free draft. REST families: /api/v1/template-version-sessions/:sessionId and /api/v1/template-version-runs/:runId. Template REST OpenAPI schemas and endpoints
Template generation ★stories:generategenerate_template_versionQuote the run first, show the maximum credits, then confirm. Poll get_template_version for persisted progress and recovery.
Creazione ★stories:generatecreate_storyScrivi una storia completamente nuova da un prompt. estimate_story è gratuito e quota l'intero piano in anticipo, cosa che i preventivi per singola azione non possono fare. Inizia con scope="story" (solo testo) invece di "full", che addebita immediatamente il video.
Start from a videostories:write / stories:readupload_video · finish_video_upload · get_video_upload · upload_file · list_story_mediaFree. upload_video makes a draft episode in a series and answers one curl command that sends the local file straight to storage; finish_video_upload verifies it, fills the details from the video, picks a cover and cuts it into editable clips; get_video_upload reports the cut until it is ready. Open links.upload to watch it. upload_file hosts a song, logo or extra footage the same way (for an overlay src or an asset picture); list_story_media lists every file of a story to download and check.
Story versions ★stories:generate / stories:readcreate_story_version · create_story_versions · get_story_version · get_version_translation · edit_version_translation · list_story_versionsA language, format or style version keeps every clip's media. A format or style version is free; a language version's translation is charged when it is created, so it answers a quote first and is made with confirmToken (the copy dialog's price). create_story_versions makes many at once the cheap way: each new style or aspect once, then its languages from it after its visual step. create_story_version(s) need stories:generate, edit_version_translation stories:write; the reads need stories:read. The paid steps run with run_story_version_step (stories:generate); its free 'prepare' step restarts a failed translation.
Storieseries:read / series:write assets:read / assets:writelist_series · get_series · create_series · update_series · list_series_assets · add_series_asset · update_series_asset · delete_series_asset · remove_series_look · use_series_look_as_mainIl livello superiore a una storia: i personaggi, gli sfondi e lo stile condivisi che si tramandano tra gli episodi. Collega una nuova storia con create_story seriesId per ereditarli.
Clip e dialoghistories:writeupdate_clip · update_clips · set_all_clips · reorder_clips · add_clip · delete_clip · duplicate_clip · reorder_clip · set_clip_duration · select_clip_version · select_clip_image_version · add_dialogue_line · update_dialogue_line · remove_dialogue_line · hide_dialogue_line · add_audio_fx · update_audio_fx · remove_audio_fx · update_story · update_caption_settingsUn dialogo che supera la durata della sua clip ne estende automaticamente la durata. Le modifiche al testo non cambiano mai i media già generati. update_clips modifica molte clip contemporaneamente, ciascuna con i propri valori; set_all_clips imposta un unico valore su ogni clip e rifiuta il testo, perché la stessa descrizione ovunque appiattirebbe l'episodio. Entrambi rifiutano l'intero lotto se un elemento non è valido. reorder_clips imposta l'intero ordine di riproduzione in un'unica chiamata.
Assistente Yohstories:writeask_assistant · apply_assistant · undo_assistantAffida una richiesta all'assistente di Yoh, quello dietro la funzione Chiedi all'AI della pagina Script e l'AI agent dell'editor. ask_assistant propone soltanto: le modifiche ritornano come cambiamenti e i passaggi a pagamento come preventivi. apply_assistant esegue le modifiche che decidi di tenere; per quelle a pagamento serve anche il confirmToken del preventivo dopo il consenso dell'utente. undo_assistant ripristina ciò che un'operazione applicata ha cambiato. Ogni turno di ask_assistant costa pochi crediti: il suo costo AI reale, fino a un piccolo preventivo per turno.
Timelinestories:writemove_clip · resize_clip · trim_clip · reset_clip_timing · close_gaps · set_clip_framing · move_caption · hide_clip_video · pin_dialogue_read · export_clip_to_freeform · export_caption_to_freeform · remove_soundtrackSpostare una clip fa scorrere ogni clip successiva; il ridimensionamento ancora l'inizio, quindi trascinare l'inizio equivale a un taglio della testa. Gli elementi della storia non possono essere eliminati o divisi: nascondili o esportali in un overlay a forma libera.
Overlaystories:writeadd_overlay · update_overlay · move_overlay · resize_overlay · split_overlay · duplicate_overlay · delete_overlay · delete_freeform_row · upload_mediaDue overlay non possono sovrapporsi sulla stessa riga; un posizionamento in conflitto viene rifiutato indicando le righe libere. I media necessitano di un src https ospitato.
Stilestories:writeapply_overlay_preset · set_caption_styleI preset di testo dell'editor, i modelli di sottotitoli e circa 32 animazioni di entrata/uscita — così l'agent applica ciò che il prodotto offre invece di inventare CSS. Lo stile dei sottotitoli è per singola battuta.
Personaggi e setstories:writeadd_character · update_character · delete_character · add_scene · update_scene · delete_scene · add_item · update_item · delete_item · keep_character_sheetEliminare un personaggio lo rimuove da ogni clip. Le sue battute vengono mantenute senza speaker finché non scegli chi le pronuncia (update_dialogue_line); un ruolo con un volto con licenza o un casting in attesa non può essere eliminato.
Casting vocistories:writeset_character_voiceVoci stock filtrate per la lingua della storia più le voci clonate pronte dell'account. Il casting è gratuito; i dialoghi già eseguiti mantengono la voce con cui sono stati renderizzati.
Cambio vocestories:writeset_revoice_enabled · select_revoice_take · undo_revoice · fix_audio_syncPassare tra le nuove letture e la performance originale è gratuito e reversibile; i take vengono conservati in entrambi i casi.
Generazione ★stories:generateregenerate_clip · regenerate_clip_image · edit_clip_image · enhance_clip_image · generate_clip_video · edit_clip_video · swap_asset · revoice_clip · regenerate_character_sheet · regenerate_asset_image · generate_all_asset_images · generate_soundtrack · generate_storyboard · generate_all_videos · generate_all_clips · generate_clip_grid_reference · continue_story_from_clip · run_story_version_step · render_storyOgni coppia è modifica-vs-ridisegno: edit_clip_image riscrive il fotogramma corrente da un'istruzione mentre regenerate_clip_image ne disegna uno nuovo; edit_clip_video è video-su-video e mantiene soggetto, composizione e movimento mentre generate_clip_video rigenera dall'immagine dello storyboard. enhance_clip_image riporta i volti alla somiglianza con le schede personaggio. regenerate_clip esegue immagine-poi-video come un unico lavoro — la scelta giusta dopo aver cambiato la descrizione o il cast di una clip. generate_clip_grid_reference disegna una scheda di continuità i cui pannelli provengono dai battiti temporali della clip stessa, non da un set fisso di momenti generici.
Stopstories:writecancel_generationThe app's Stop for a jobId or a batch runId: nothing further starts, work in flight finishes and is kept, the rest is refunded. Free.
Hired character looksassets:read stories:writelist_hire_looks · choose_hire_looksThe creator's looks a hired character brings (main sheet, earlier style sheets, the creator's looks) and which are in the episode; choose_hire_looks adds or removes them, the same as the hire page. Names only until the hire is paid. Free.

La spesa è doppiamente protetta Uno strumento contrassegnato con ★ non spende mai alla prima chiamata: restituisce un preventivo in crediti e un confirmToken firmato; l’agente deve mostrarti il preventivo e procedere solo con la tua approvazione esplicita. Inoltre, una chiave senza storie:generate non può fisicamente spendere — crea una chiave di sola modifica con storie:write se desideri un agente per lettura e modifiche.

Come garantisce sicurezza e correttezza

  • Il server applica le regole dell’Editor (spostamenti, limiti di ritaglio, corsie dei sottotitoli, righe degli overlay) e risponde a una violazione indicando l’intervallo consentito invece di troncare i valori silenziosamente.
  • L’agente legge il set completo di regole dalla risorsa yoh://guide/timeline, e il prompt /mcp__yoh__edit-story gli fornisce un flusso di lavoro sicuro.
  • La generazione è asincrona — la maggior parte degli strumenti restituisce un runId che l’agente controlla con get_run; alcuni (create_story, render_story, character art) restituiscono un jobId per get_job, come nelle API REST.
  • Imposta un timeout lungo in .mcp.json (ad esempio 900000) affinché il render non vada in timeout lato client.

Verifica la tua connessione

Uno smoke test viene fornito con il repo. Utilizza il protocollo reale, mette alla prova le regole e dimostra che il blocco della spesa funziona: non consuma mai crediti e l'unica operazione di scrittura viene annullata:

node scripts/mcp-smoke.mjs --url https://www.yoh.app/api/mcp --key sk_live_YOUR_API_KEY
# read-only variant:
node scripts/mcp-smoke.mjs --url https://www.yoh.app/api/mcp --key sk_live_YOUR_API_KEY --skip-write

Gestisci le API key

Gli endpoint per la gestione delle API key utilizzano session authentication (cookie dell’utente loggato), non una API key. Usa la API Keys page per una procedura via browser, oppure chiama questi endpoint a livello di codice dal tuo backend con una sessione valida. /api-keys

Elenca le API key

GET/api/v1/api-keysscope: session
{
  "data": [{
    "id": "key_abc123", "name": "Production",
    "keyPrefix": "sk_live_7WH3",
    "scopes": ["stories:generate", "stories:read", "assets:read"],
    "revokedAt": null, "createdAt": "2026-04-03T10:00:00.000Z"
  }]
}

Crea una API key

POST/api/v1/api-keysscope: session
// Response — full key shown once
{
  "id": "key_abc123",
  "key": "sk_live_...",
  "name": "My integration",
  "keyPrefix": "sk_live_7WH3",
  "scopes": ["stories:generate", "stories:read", "assets:read"]
}

Revoca una API key

DELETE/api/v1/api-keys/:idscope: session
{ "id": "key_abc123", "revoked": true }

Errori

HTTP 409 with error.code = generation_budget_exceeded means your optional X-Max-Generation-Credits cap was exceeded. The response includes quote.credits; nothing was charged. Change the request or explicitly raise your budget to retry. A malformed cap returns 400. Other 409 conflicts can mean an idempotency key was reused with different input or work is already running. Template-version generation uses its own persisted quoteId contract; see its OpenAPI reference.

Story create (POST /api/v1/stories/generate and /estimate, MCP create_story / estimate_story) checks the series before pricing: 404 series_not_found when the key's user cannot open that seriesId, 403 series_forbidden when they can open it but may not add episodes to it. Nothing is charged.

Rate limits are per key: 5 generation calls, 60 reads and 60 writes a minute. Each call counts once: an MCP tool call is one call even when it runs several v1 steps, and POST /stories/:id/swap-asset is one generation call for every clip it switches.

La maggior parte degli endpoint restituisce un oggetto error con un code leggibile dalla macchina. Gli endpoint specializzati potrebbero restituire un errore in formato stringa o un codice di primo livello; controlla sempre lo stato HTTP.

{ "error": { "code": "insufficient_credits", "message": "...", "status": 402 } }
HTTPcodiceSignificato
401unauthorizedChiave API mancante o non valida.
403forbiddenLa chiave API non ha i permessi necessari.
404not_foundLa risorsa richiesta non esiste.
400bad_requestCorpo della richiesta o parametri non validi.
402insufficient_creditsCrediti insufficienti per eseguire l’operazione.
429rate_limitedTroppe richieste. Controlla l’header Retry-After.
500internal_errorErrore interno del server.

Limiti di frequenza: Gli endpoint di generazione consentono 5 richieste al minuto per API key. Le letture e le modifiche alle clip (che non consumano crediti) ne consentono 60. Quando raggiungi un limite, la risposta include un header Retry-After con il numero di secondi da attendere. I job falliti (dopo tutti i tentativi) rimborsano automaticamente i crediti che erano stati dedotti.