ToolVet
81trust / 100

Exa Search

by NetIntel in Search & web

x402 APIPassing, checked 28 min ago

Exa neural web search for AI agents — POST or GET a query, get ranked live results (title, url, published_date, author, score) with optional highlight snippets. Filter by category (news, research paper, github, company, pdf, and more), domain include/exclude, and publish date. For a direct answer use /exa/answer. No API key, pay per call on Base or Solana.

POST https://netintel.dev/exa/search

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Uptime
100%
Response time
292 ms typical, 433 ms slowest 5%
Last check
28 min ago
Next check
in 1 min

How to call it

POST https://netintel.dev/exa/search

Each call costs $0.01 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://netintel.dev/exa/search
content-type: application/json

{
  "num_results": 5,
  "query": "x402 payment protocol"
}

Parameters

ParameterTypeRequiredDescription
categorystringNocompany | research paper | news | pdf | github | tweet | personal site | linkedin profile | financial report
end_published_datestringNoISO 8601 date/datetime upper bound
include_domainsarray of stringNoUp to 20 hostnames to restrict to
num_resultsnumberNo1-10 results (default 10); >10 clamped. Aliases: numResults, limit, n, count
querystringYesSearch query, 1-1000 chars. Aliases: q, search, prompt, text
snippetsstringNonone (default) | highlights | text — clamps num_results to 2
start_published_datestringNoISO 8601 date/datetime lower bound
typestringNoauto (default) | neural | keyword | fast

Example response

The provider's example. We can't check it without paying.

Example response, 27 lines
{
  "findings": [],
  "num_results": 5,
  "provider": "exa",
  "query": "x402 payment protocol",
  "results": [
    {
      "author": null,
      "highlights": null,
      "published_date": "2026-05-12T00:00:00.000Z",
      "score": 0.41,
      "text": null,
      "title": "x402: an open standard for internet-native payments",
      "url": "https://www.x402.org/"
    },
    {
      "author": null,
      "highlights": null,
      "published_date": "2025-05-06T00:00:00.000Z",
      "score": 0.38,
      "text": null,
      "title": "coinbase/x402: HTTP-native micropayments protocol",
      "url": "https://github.com/coinbase/x402"
    }
  ],
  "search_type": "neural"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://netintel.dev/exa/search' \
  -H 'content-type: application/json' \
  --data-raw '{"num_results":5,"query":"x402 payment protocol"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://netintel.dev/exa/search' \
  -H 'content-type: application/json' \
  --data-raw '{"num_results":5,"query":"x402 payment protocol"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fnetintel.dev%2Fexa%2Fsearch&method=POST
const res = await pay("https://netintel.dev/exa/search", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "num_results": 5,
    "query": "x402 payment protocol"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://netintel.dev/exa/search",
        json={
            "num_results": 5,
            "query": "x402 payment protocol",
        },
    )
    print(res.status_code, res.text)

Security scan

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