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YouTube Transcript API guide
Understand transcript APIs, request formats, languages, errors and AI workflow patterns.
Open →YouTube Transcript API Guides
Practical guides for using YouTube transcripts and captions in AI agents, RAG pipelines, search, summarization and automation workflows.
Transcript access
YouTube API transcript guide
Clarify official YouTube API intent, transcript-specific APIs and Scority's text plus segments response.
Open →Captions
Captions and subtitles
Understand caption tracks, subtitles, language selection, timed segments and missing-caption errors.
Open →Credentials
YouTube API keys
Separate Google Cloud API keys from Scority x-api-key authentication for transcript extraction.
Open →Cost
Pricing and cost factors
Plan around transcript API cost drivers, quota, cache behavior and request volume.
Open →Limits
Quota and rate limits
Separate monthly quota from short-window rate limits and handle 429 responses correctly.
Open →Troubleshooting
YouTube API errors
Debug 400, 401, 403, 429, transcript_not_available and upstream transcript failures.
Open →Python
Python transcript API guide
Call the Scority HTTP API from Python with requests, server-side keys, language options and error handling.
Open →Node.js
Node.js transcript API guide
Use server-side fetch in Node.js to request transcripts by video ID, URL and language.
Open →JavaScript
Server-side JavaScript
Call the Transcript API with fetch from backend JavaScript without exposing API keys in a browser.
Open →OAuth
Without OAuth
Learn when OAuth is required for official YouTube workflows and when API key auth is enough.
Open →Comparison
Data API vs transcript API
Choose between Google's official YouTube API and a transcript-specific API for text plus segments.
Open →403
YouTube API 403 errors
Troubleshoot forbidden requests, credential issues and transcript-specific alternatives.
Open →429
YouTube API 429 errors
Handle rate limits, quota_exceeded, Retry-After and safe retry strategies.
Open →Quota
Quota exceeded
Separate Google quota issues from Scority quota_exceeded responses and plan safer retries.
Open →Reference
API reference
Use the live Transcript API endpoint with video IDs, video URLs, language selection and JSON responses.
Open →Auth
Authentication
Send your API key with the x-api-key header from trusted server-side code.
Open →Errors
Errors and troubleshooting
Map normalized error codes to recommended retry, input validation and support actions.
Open →Limits
Rate limits and quotas
Separate short-window rate limiting from monthly product quota and understand response headers.
Open →Examples
Node and Python examples
Review server-side examples for calling the Scority API without exposing API keys in a browser.
Open →Topics
What the guides cover
The guide library focuses on real integration questions: how to authenticate, how transcript availability works, how language selection behaves and how to handle operational limits.
- Getting started with transcript requests by video ID or YouTube URL.
- Captions, transcripts, language selection and response shape.
- API keys, server-side authentication and key safety.
- Pricing concepts, monthly quotas and short-window rate limits.
- Errors, retry behavior and upstream transcript limitations.
- Server-side Python, Node.js and JavaScript implementation examples.
- OpenAPI and language behavior references for production integrations.