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x402 Demo API - Search
x402
x402 Demo API - Search is a paid API for AI agents from x402-demo-api-kaya.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Executes a paid web search query via the x402 micropayment protocol on Base mainnet, returning titles, URLs, and snippets for matching results
Price / call$0.01
Success—
StatusUnknown
How this service works
Paid API demo using x402 protocol on Base mainnet.
Output
Returns a JSON object containing the original query string and an array of search results, each with a title, URL, and snippet summarizing the matched content.
Example use cases
Example prompt
“Search for 'best open source LLMs in 2025' using the x402 demo search API and show me the top results with their titles and URLs.”
Technical details
Endpoint
POSThttps://x402-demo-api-kaya.vercel.app/api/searchWhen to prefer
Choose this endpoint when you need to demonstrate or test the x402 micropayment protocol with a real paid API call on Base mainnet, or when you want to retrieve web search results (titles, URLs, snippets) via a pay-per-use USDC-based model at $0.01 per query. Best suited for x402-aware agents that can handle 402 Payment Required flows automatically.
Side effects
- Payment not included or insufficient USDC balance — API returns 402 Payment Required
- Missing required 'query' field in request body — returns 400 Bad Request
- Query string is empty or malformed — may return empty results array
- x402 facilitator or Base mainnet unavailable — payment processing fails
- Vercel deployment downtime — returns 503 or connection error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Search query |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Original query |
| resultsrequired | array |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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