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x402 Multi-Tool API — Web Search (SERP)
x402
x402 Multi-Tool API — Web Search (SERP) is a paid API for AI agents from x402deploy.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Performs a web search (SERP) and returns ranked results including URLs, titles, and snippets, paid per-request via x402 USDC micropayment.
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-request data toolkit for AI agents — 13 no-auth tools, $0.005 USDC each via x402. Web search, read URL, crypto price/markets/trending, Wikipedia, news headlines, weather, FX rates, IP geolocation, DNS lookup, stock quotes, and domain WHOIS.
Output
Returns a JSON object containing the original query, total result count, country used, and an array of ranked results — each with a URL, page title, text snippet, and position number.
Example use cases
Research product recommendations online
“Search the web for 'best noise-cancelling headphones under $300' and return the top 5 results so I can see what sites are recommending.”
Find competitor websites for a niche
“Do a web search for 'AI meeting transcription tools' in the US and give me the top 10 results with their URLs and titles.”
Fetch current event information
“Search for 'Federal Reserve interest rate decision June 2025' and return the top 5 results with snippets so I can summarize what happened.”
Technical details
Endpoint
POSThttps://x402deploy.vercel.app/api/serpWhen to prefer
Choose this endpoint when an AI agent needs live web search results without setting up API keys or OAuth — ideal for pay-per-use agentic workflows where cost-per-call must be minimal ($0.005 USDC). Prefer over traditional search APIs when the agent infrastructure already supports x402 micropayments and needs no-auth, instant access to ranked web results with snippets.
Side effects
- Missing required 'query' field returns a 400 validation error
- Payment not received or insufficient USDC causes a 402 Payment Required response
- Invalid ISO country code may produce no results or default to a fallback country
- Query with no indexed results returns an empty results array
- Rate limiting or upstream SERP provider downtime returns a 503 or 500 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Search query string |
| country | string | ISO country code |
| num_results | integer |
Output
Schema · Response
{
"query": "best vector database",
"total": 1,
"country": "us",
"results": [
{
"url": "https://example.com",
"title": "Example result",
"snippet": "An example snippet",
"position": 1
}
]
}Tags
x402
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