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x402vid Keyword Autocomplete
x402
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.
Price / call$0.02
Success—
StatusUnknown
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.
Example use cases
YouTube channel keyword research
“I'm starting a YouTube channel about sourdough baking — can you get me autocomplete keyword suggestions and topic clusters for 'sourdough' in English for the US so I know what people are actually searching for?”
Multi-seed keyword expansion for campaign
“I need YouTube keyword ideas for a new ad campaign. Can you run autocomplete suggestions for 'electric bike, e-scooter' together in English for the UK market and group them into clusters?”
Localized content targeting for foreign market
“I want to make YouTube videos for a Spanish-speaking audience in Mexico — can you get me keyword autocomplete suggestions for 'recetas saludables' in Spanish with the MX region so I can see what topics to cover?”
Technical details
Endpoint
POSThttps://x402vid.com/tools/keyword_autocomplete?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| lang | string | Language code (default en) |
| region | string | 2-letter region code (default US) |
| seed_topicrequired | string | Seed keyword(s), comma-separated for multi-seed (e.g. sourdough, or 'a, b') |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| seed | string | |
| clusters | object | |
| top_terms | array |
Tags
x402
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