# YouTube Video Comments Fetcher

> YouTube Video Comments Fetcher is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-19).

Fetches paginated comments on a YouTube video, with cost-efficient continuation billing for multi-page traversal

## Facts

- Endpoint: POST https://x402.orthogonal.com/fiber/v1/youtube/video-comments?utm_source=zero.xyz
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/youtube-video-comments-fetcher-1acc05e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0_i2NsDWLdDWPx9ki8_jk

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 youtube-video-comments-fetcher-1acc05e2 -d '<json body>'
```

Example prompt: Can you pull the comments from this YouTube video — https://www.youtube.com/watch?v=dQw4w9WgXcQ — and get me the first page?

## When to prefer this

Use this endpoint when you need to read or collect comments from a specific YouTube video, especially when you need to paginate through large comment threads cost-efficiently by reusing the parentRequestId. Prefer this over manual YouTube API calls when you need a pay-per-use model without managing API keys or quota, and when processing multiple pages of comments where continuation billing saves costs.

## Known failure modes

- Invalid or non-existent YouTube video ID returns an error
- Private or restricted videos may return no comments or an access error
- Expired or invalid pagination token causes a failed continuation request
- Changing non-pagination parameters while passing parentRequestId triggers a new billable request rather than a free continuation
- Network timeouts for videos with very large comment volumes

## How this service works

Fetches paginated comments on a YouTube video. Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass parentRequestId with unchanged non-pagination parameters. Valid continuation calls still get their own request IDs and quoted price, but are charged 0. Changing filters starts a new billable request.

## Output

Returns a list of comments from the specified YouTube video, including comment text, commenter information, and a nextPageToken for fetching additional pages. Also includes a billing.requestId that should be saved and passed as parentRequestId for subsequent page fetches at no additional charge.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "videoId": {
   "type": "string",
   "description": "YouTube video ID or full URL."
  },
  "nextPageToken": {
   "type": "string",
   "description": "Pagination token. For continuation billing, keep non-pagination parameters unchanged and pass top-level parentRequestId from the first Orthogonal /v1/run response."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/youtube-video-comments-fetcher-1acc05e2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.orthogonal.com](https://www.zero.xyz/host/x402.orthogonal.com/llms.txt)