# YouTube Video Transcript Fetcher

> YouTube Video Transcript Fetcher is a paid API for AI agents from Fiber AI API at mpp.orthogonal.com, paid per call via MPP, $0.04/call, status unknown (last checked 2026-09-16).

Fetches the full text transcript of a YouTube video given its URL or video ID.

## Facts

- Endpoint: POST https://mpp.orthogonal.com/fiber/v1/youtube/transcript
- Price: $0.04/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Provider: Fiber AI API
- Docs: https://api.fiber.ai
- Website: https://api.fiber.ai
- Tags: contacts, email, phone, enrichment, data
- Canonical page: https://www.zero.xyz/c/fiber-ai-api-youtube-video-transcript-fetcher-10405d0c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bARAWDUO2mawq8n5tkjeq

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fiber-ai-api-youtube-video-transcript-fetcher-10405d0c -d '<json body>'
```

Example prompt: Can you fetch the transcript for this YouTube video so I can read through what was said? The video is at https://www.youtube.com/watch?v=dQw4w9WgXcQ

## When to prefer this

Use this endpoint when you need to extract the spoken content of a YouTube video as text, such as for summarization, analysis, search indexing, or content processing. Prefer this over manual transcription tools or general-purpose video download tools when you need a quick, clean text output from a publicly available YouTube video.

## Known failure modes

- Video has no captions or transcript available — returns an error or empty result
- Invalid or non-existent YouTube video ID/URL — returns a 404 or validation error
- Video is private or restricted — access denied error
- YouTube rate limiting or API unavailability — service error
- Transcripts disabled by video owner — not available error

## How this service works

Fetches the transcript of a YouTube video.

## Output

Returns the full spoken transcript of the specified YouTube video as text, likely including timestamped segments or a combined text block of the video's captions/subtitles.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fiber-ai-api-youtube-video-transcript-fetcher-10405d0c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.orthogonal.com](https://www.zero.xyz/host/mpp.orthogonal.com/llms.txt)