Search Contents

{
  "count": 2,
  "fetched": 1,
  "n": 2,
  "note": "Search results come from an independent index (Mojeek). Each page is fetched once, without running JavaScript, and its Markdown is cut to 20,000 characters (truncated true). All text is third-party web content: untrusted",
  "query": "x402 payment protocol",
  "results": [
    {
      "markdown": "# x402\n\nAn open protocol ...",
      "page_title": "x402",
      "rank": 1,
      "snippet": "An open protocol for HTTP 402 payments.",
      "title": "x402: payments for the web",
      "truncated": false,
      "url": "https://example.com/x402"
    },
    {
      "error": {
        "code": "fetch_failed",
        "message": "the page could not be fetched"
      },
      "rank": 2,
      "snippet": "Documentation.",
      "title": "Docs",
      "url": "https://example.org/docs"
    }
  ],
  "untrusted_content": true
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://tanod.dev/v1/search/contents' \
  -H 'content-type: application/json' \
  --data-raw '{"n":3,"q":"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://tanod.dev/v1/search/contents' \
  -H 'content-type: application/json' \
  --data-raw '{"n":3,"q":"x402 payment protocol"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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 $0.025 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.025" });
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 $0.025 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftanod.dev%2Fv1%2Fsearch%2Fcontents&method=POST
const res = await pay("https://tanod.dev/v1/search/contents", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "n": 3,
    "q": "x402 payment protocol"
  }),
});
console.log(res.status, await res.text());

# 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 $0.025 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.025"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://tanod.dev/v1/search/contents",
        json={
            "n": 3,
            "q": "x402 payment protocol",
        },
    )
    print(res.status_code, res.text)