Exa neural web search
POST https://agent402.tools/api/exa-search
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.
Warnings
Wallet mismatch The payout wallet in its live payment answer differs from its catalogue listing on the same network.
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X POST "https://agent402.tools/api/exa-search"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 13:01 | Valid 402 | 402 | 115 ms | $0.012 |
| 2026-10-11 08:30 | Valid 402 | 402 | 82 ms | $0.012 |
| 2026-10-11 04:00 | Valid 402 | 402 | 84 ms | $0.012 |
| 2026-10-10 23:30 | Valid 402 | 402 | 206 ms | $0.012 |
| 2026-10-10 18:15 | Valid 402 | 402 | 69 ms | $0.012 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves