# x402vid Keyword Autocomplete

> x402vid Keyword Autocomplete is a paid API for AI agents from x402vid.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-23).

Returns YouTube keyword autocomplete suggestions and topic clusters for one or more seed keywords, with region and language filtering.

## Facts

- Endpoint: POST https://x402vid.com/tools/keyword_autocomplete?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402vid-keyword-autocomplete-404789da
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_u99CoTnzRJrmpkXfZXyg-

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-keyword-autocomplete-404789da -d '<json body>'
```

Example prompt: Can you pull YouTube keyword autocomplete suggestions for 'home workout' in English for the US market and show me the top terms and clusters?

## When to prefer this

Choose this endpoint when you need YouTube-specific keyword autocomplete and topic clustering rather than generic search volume data or Google keyword planners. It is ideal for AI agents building YouTube content strategies, optimizing video titles, or discovering niche search demand on YouTube specifically, paid per-call at $0.02 USDC with no subscription required.

## Known failure modes

- Missing required 'seed_topic' field returns a 400/validation error
- Unsupported language or region code may return empty or default results
- Payment not completed via x402 returns a 402 Payment Required response
- Overly generic or very short seed keywords may return broad, low-signal clusters
- Rate limiting or network issues may cause timeouts

## 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 a JSON object with the original seed keyword, an object of topic clusters grouping related terms together, and an array of top autocomplete terms — giving the agent a structured view of what YouTube searchers are typing around the seed topic.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "seed_topic"
 ],
 "properties": {
  "lang": {
   "type": "string",
   "description": "Language code (default en)"
  },
  "region": {
   "type": "string",
   "description": "2-letter region code (default US)"
  },
  "seed_topic": {
   "type": "string",
   "description": "Seed keyword(s), comma-separated for multi-seed (e.g. sourdough, or 'a, b')"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "seed": {
   "type": "string"
  },
  "clusters": {
   "type": "object"
  },
  "top_terms": {
   "type": "array"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402vid-keyword-autocomplete-404789da/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)