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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 4 h ago | Passed | 402 | 260 ms | $0.005 |