# x402vid Comment Replies Extractor

> x402vid Comment Replies Extractor is a paid API for AI agents from x402vid.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-19).

Extracts and mines top comment threads and their replies from a YouTube video, returning structured thread and reply data.

## Facts

- Endpoint: POST https://x402vid.com/tools/comment_replies?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402vid-comment-replies-extractor-956eb34c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wJmzHSkvOIEBMUI8dtVqH

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 x402vid-comment-replies-extractor-956eb34c -d '<json body>'
```

Example prompt: Pull the top 5 comment threads and up to 10 replies each from this YouTube video: https://www.youtube.com/watch?v=dQw4w9WgXcQ — I want to see what people are discussing in the replies.

## When to prefer this

Use this endpoint when you need structured, nested comment thread data — including replies to top comments — from a specific YouTube video. It is ideal for audience research, sentiment analysis on comment discussions, brand monitoring, or content planning where understanding reply-level discourse matters. Prefer this over general comment scrapers when you want pay-per-call pricing with no subscription and need the reply layer, not just top-level comments.

## Known failure modes

- Invalid or non-existent YouTube URL returns an error with no thread data
- Video with comments disabled returns empty threads array
- max_threads or max_replies_each exceeding allowed maximums (10 and 25 respectively) may be clamped or rejected
- Payment not received via x402 results in 402 Payment Required response
- Rate limiting or YouTube API quota exhaustion may cause partial or failed extraction

## How this service works

x402vid — endpoint discovery for YouTube intelligence: pay-per-call via x402 on Base. Muse Spark 1.3 video intelligence, 26 tools (20 paid +6 free) from $0.01. Free before you pay: GET /api/v1/catalog (every tool + price) → GET /api/v1/quote (freeze price) → video_preview. No subscriptions.

## Output

Returns an array of top comment threads, each containing nested reply objects, along with the resolved video ID and a structured replies report summarizing thread and reply counts and metadata.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "video_url"
 ],
 "properties": {
  "video_url": {
   "type": "string",
   "description": "YouTube video URL or video ID"
  },
  "max_threads": {
   "type": "integer",
   "description": "Top threads to mine (default 5, max 10)"
  },
  "max_replies_each": {
   "type": "integer",
   "description": "Replies per thread (default 10, max 25)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "threads": {
   "type": "array"
  },
  "video_id": {
   "type": "string"
  },
  "replies_report": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402vid-comment-replies-extractor-956eb34c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402vid.com](https://www.zero.xyz/host/x402vid.com/llms.txt)