X402 History

{
  "dataCompleteSince": 1782826208450,
  "days": 30,
  "delisted": false,
  "firstSeenTs": 1782826208450,
  "probeSummary": {
    "byStatus": {
      "dns_error": 1,
      "success": 1
    },
    "excluded": 1,
    "failed": 1,
    "failureDays": [
      {
        "byStatus": {
          "dns_error": 1
        },
        "day": "2026-06-30",
        "excluded": 1,
        "failed": 1
      }
    ],
    "longestFailStreak": 0,
    "ok": 1,
    "total": 2
  },
  "probes": [
    {
      "amount": "200",
      "error": null,
      "excluded": false,
      "httpStatus": 402,
      "latencyMs": 312,
      "ok": true,
      "status": "success",
      "ts": 1782826208450
    },
    {
      "amount": null,
      "error": "DNS resolution failed for api.example.com: getaddrinfo EAI_AGAIN api.example.com",
      "excluded": true,
      "httpStatus": null,
      "latencyMs": 12,
      "ok": false,
      "status": "dns_error",
      "ts": 1782829808450
    }
  ],
  "resource": "https://api.example.com/v1/thing",
  "snapshots": [
    {
      "amount": "200",
      "kind": "price",
      "payTo": "0xa2477E16dCB42E2AD80f03FE97D7F1a1646cd1c0",
      "ts": 1782826208450
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://x402-trust.com/v1/x402-history' \
  -H 'content-type: application/json' \
  --data-raw '{"days":30,"resource":"https://api.example.com/v1/thing"}'

# 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://x402-trust.com/v1/x402-history' \
  -H 'content-type: application/json' \
  --data-raw '{"days":30,"resource":"https://api.example.com/v1/thing"}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402-trust.com%2Fv1%2Fx402-history&method=POST
const res = await pay("https://x402-trust.com/v1/x402-history", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "days": 30,
    "resource": "https://api.example.com/v1/thing"
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://x402-trust.com/v1/x402-history",
        json={
            "days": 30,
            "resource": "https://api.example.com/v1/thing",
        },
    )
    print(res.status_code, res.text)