81trust / 100

Base Contract

by base-contract in Onchain & crypto

x402 APIPassing, checked 4 h ago

Contract introspection on Base mainnet - is it a contract, bytecode size, best-effort owner(), and whether it's a proxy.

POST https://x402.agentindex.world/base/contract

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
260 ms typical, 260 ms slowest 5%
Last check
4 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://x402.agentindex.world/base/contract" \
  -H "content-type: application/json" \
  -d '{"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"}'
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402.agentindex.world%2Fbase%2Fcontract
const res = await pay("https://x402.agentindex.world/base/contract", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"}),
});
console.log(await res.json());

Example input

{
  "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}

Example output

{
  "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "bytecode_size": 1852,
  "is_contract": true,
  "is_proxy": false,
  "owner": "0x3abd6f64a422225e61e435bae41db12096106df7"
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402260 ms$0.005