x402 Agent Hub

Native coin balance of any address on Base, Ethereum, Arbitrum, Optimism, Polygon, BSC or Avalanche, with raw wei and formatted units plus the block it was read at. You only pay for successful reads: invalid input, not-found and upstream errors cancel settlement.

Open endpoint ↗

Price per call: $0.002
Chain: Base
Method: GET
Paid calls · 30 days: 2

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://x402-agent-hub.x402-agent-hub.workers.dev/v1/chain/balance", { method: "GET" });
console.log(await res.json());

https://x402-agent-hub.x402-agent-hub.workers.dev/v1/chain/balance