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YouTube Transcript Fetcher
x402
YouTube Transcript Fetcher is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-15).
Fetches the full transcript of a YouTube video given its video ID or URL, with optional language selection.
Price / call$0.04
Success—
StatusUnknown
How this service works
Fetches the transcript of a YouTube video.
Output
The agent receives the full text transcript of the specified YouTube video, broken into timestamped or continuous segments of spoken content, in the requested language if available.
Example use cases
Summarizing a YouTube lecture
“Get me the transcript of this YouTube lecture — https://www.youtube.com/watch?v=abc123xyz — in English so I can summarize the key points.”
Extracting Spanish captions for translation
“Fetch the Spanish transcript from this YouTube video with ID 'xYz789abc' — I need the es language version.”
Archiving a podcast episode's spoken content
“Pull the full transcript from this YouTube podcast episode https://www.youtube.com/watch?v=podcastEp01 in English so I can save the spoken content as text.”
Technical details
Endpoint
POSThttps://x402.orthogonal.com/fiber/v1/youtube/transcript?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to extract the spoken text or captions from a specific YouTube video, especially when you want to support multiple languages via BCP-47 codes. It is ideal for agents that need to summarize, analyze, translate, or archive YouTube video content without downloading the video file itself.
Side effects
- Video ID not found or invalid — returns an error indicating the video does not exist
- No transcript available for the requested language code — may return empty or fall back to another language
- Video has disabled captions or transcripts — returns an error indicating transcripts are unavailable
- Invalid YouTube URL format — parsing failure or bad request error
- Rate limiting or payment failure — returns 402 Payment Required if x402 payment is not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| videoId | string | YouTube video ID or full URL. |
| languageCode | string | BCP-47 language code (e.g. 'en', 'es'). |
Tags
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