YouTube

YouTube Shorts Summarizer API

AI summary of a YouTube Short — rejects long-form videos (≤3 min only).

Same summarizer as YouTube Summarizer (captions → AI summary), scoped to Shorts (≤3 minutes). Longer videos return HTTP 422. Caption-miss 404 matches /transcript diagnostics and charges 0 — never 3. Flat 3 credits only when a summary is returned.

Docs: https://captapi.com/apis/youtube-shorts-summarizer

get/v1/youtube/shorts/summarize

Request

  • Base URL: https://api.captapi.com
  • URL: https://api.captapi.com/v1/youtube/shorts/summarize
  • Auth: one of:
    • HTTP bearer
    • API key in header X-API-Key

Query parameters

urlstring required

Public YouTube Shorts URL, e.g. https://youtube.com/shorts/ID (≤3 min). Long-form videos return HTTP 422 — use the matching /v1/youtube/… endpoint instead. The URL platform must match this endpoint's platform. Do not pass cross-platform URLs, e.g. YouTube to TikTok, Instagram to Facebook, LinkedIn to X/Twitter, or Pinterest to Rumble.

languagestring

Preferred caption language as an ISO code, e.g. "en". Defaults to auto-detect.

cacheboolean

Set true to serve from the 24h response cache (0 credits on hit). Default false — always fetch fresh.

Response

Success. The data object for this endpoint.

successunknown required

Changes

No recorded changes to this operation across all 3 revisions of this API.