Crypto Microdata for Agents

Paid heartbeat / x402 payment test: cheapest way to verify your x402 client end-to-end on Base USDC ($0.001). Pass testRunId= (or echo=) to correlate a validation run. Returns {ok, paymentVerified:true, receiptId, testRunId, nextAction, next_calls}. Aliases: /test, /pay, /x402/test, /crypto/test, /v1/ping.

Open endpoint ↗

Price per call: $0.001
Chain: Base
Method: GET
Paid calls · 30 days: 0

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://kr-x402-mvp.kgy5612.workers.dev/test", { method: "GET" });
console.log(await res.json());

https://kr-x402-mvp.kgy5612.workers.dev/test