Base Contract-Code Checker

Contract-code check for a Base mainnet address (is_contract + code size + EIP-7702 delegated-EOA detection).

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://x402-data-api.sigrunner.workers.dev/chain/code", { method: "GET" });
console.log(await res.json());

https://x402-data-api.sigrunner.workers.dev/chain/code