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Exa Search

by Exa neural web search in Search & web

x402 APIPassing, checked 3 h ago

Neural (embedding-based) web search over Exa's curated index, which finds pages by meaning rather than keyword overlap. Use it when a keyword engine returns the wrong thing: conceptual questions, 'pages like this one', or niche technical writing. Returns up to 10 results with title, URL, published date and author. Complements the Brave-backed web search rather than replacing it.

POST https://agent402.tools/api/exa-search

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
234 ms typical, 234 ms slowest 5%
Last check
3 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://agent402.tools/api/exa-search" \
  -H "content-type: application/json" \
  -d '{"numResults":5,"query":"how agent-to-agent micropayment protocols settle onchain"}'
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.03:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fexa-search
const res = await pay("https://agent402.tools/api/exa-search", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"numResults":5,"query":"how agent-to-agent micropayment protocols settle onchain"}),
});
console.log(await res.json());

Example input

{
  "numResults": 5,
  "query": "how agent-to-agent micropayment protocols settle onchain"
}

Example output

{
  "count": 1,
  "fetchedAt": "2026-09-13T20:00:00.000Z",
  "query": "how agent-to-agent micropayment protocols settle onchain",
  "results": [
    {
      "author": null,
      "publishedDate": "2026-08-02T00:00:00.000Z",
      "text": null,
      "title": "What is the x402 payment protocol?",
      "url": "https://example.com/x402-explained"
    }
  ],
  "searchType": "neural",
  "source": "exa"
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402234 ms$0.012