# QuantaFlow YouTube SERP Search

> QuantaFlow YouTube SERP Search is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Performs a YouTube search engine results page (SERP) query and returns video results, paid per-call via x402 micropayment protocol

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/serp-youtube?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-youtube-serp-search-c943343c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V_Z0I-3NOyiKNyoc2elWp

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 quantaflow-youtube-serp-search-c943343c -d '<json body>'
```

Example prompt: Search YouTube for 'how to make sourdough bread' and give me the top video results including titles, channels, and links.

## When to prefer this

Choose this endpoint when you need programmatic access to YouTube search results on a pay-per-call basis without a subscription, especially in web3/crypto-native agent pipelines that support the x402 micropayment protocol. Useful for one-off or low-volume YouTube SERP lookups where a flat subscription to a SERP API is not warranted.

## Known failure modes

- Payment failure via x402 protocol results in 402 Payment Required response
- Invalid or missing search query returns empty or error response
- Upstream SERP provider downtime causes 502/503 pass-through errors
- Rate limiting from upstream provider may cause request failures
- Malformed query parameters may result in unexpected or empty results

## How this service works

Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.

## Output

Returns structured YouTube SERP data passed through from the upstream search provider, including video listings with titles, URLs, channel names, thumbnails, view counts, and other metadata available from the YouTube search results page.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "body": {
   "type": "string",
   "description": "Optional JSON body forwarded to POST requests."
  },
  "path": {
   "type": "string",
   "description": "Path below the selected upstream origin."
  },
  "query": {
   "type": "object"
  },
  "method": {
   "enum": [
    "GET",
    "POST"
   ],
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "description": "The upstream response body and content type are passed through after successful payment."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quantaflow-youtube-serp-search-c943343c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from quanta-roan.vercel.app](https://www.zero.xyz/host/quanta-roan.vercel.app/llms.txt)