ToolVet
77trust / 100

Contract Owner

by Contract Owner in Onchain & crypto

x402 APIPassing, checked 1 h ago

Reads who controls a contract straight from chain: owner/getOwner/admin, pending owner, EIP-1967 proxy implementation + admin, and paused state — and whether the owner is a single EOA key (one compromise = total control) or a contract (multisig/timelock). Crucially: ownership 'renounced' is NOT safe if it is still an upgradeable proxy whose admin can swap the logic. The control-surface read before you trust a contract. Not financial advice.

GET
https://402.com.tr/api/x402/contract-owner
Price
$0.03
per call in USDC
Uptime
100%
last 30 days
Response time
459 ms
686 ms slowest 5%
Last check
Passed
1 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://402.com.tr/api/x402/contract-owner

Each call costs $0.03 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://402.com.tr/api/x402/contract-owner?address=0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed

Parameters

ParameterTypeRequiredDescription
addressstringYesContract address

Example response

The provider's example. We can't check it without paying.

{
  "address": "0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed",
  "isContract": true,
  "owner": "0x704Ec5C12Ca20a293C2C0B72B22619A4231f3c0d",
  "pendingOwner": null,
  "proxyImplementation": null,
  "renounced": false,
  "upgradeable": false,
  "verdict": "owner_is_contract"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.03.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://402.com.tr/api/x402/contract-owner?address=0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://402.com.tr/api/x402/contract-owner?address=0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2F402.com.tr%2Fapi%2Fx402%2Fcontract-owner
const res = await pay("https://402.com.tr/api/x402/contract-owner?address=0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://402.com.tr/api/x402/contract-owner?address=0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
1 h agoPassed402443 ms$0.03
6 h agoPassed402475 ms$0.03
11 h agoPassed402686 ms$0.03
16 h agoPassed402586 ms$0.03
20 h agoPassed402538 ms$0.03
Show 10 older checks
24 h agoPassed402485 ms$0.03
29 h agoPassed402472 ms$0.03
33 h agoPassed402456 ms$0.03
37 h agoPassed402411 ms$0.03
41 h agoPassed402459 ms$0.03
46 h agoPassed402462 ms$0.03
2 days agoPassed402529 ms$0.03
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3 days agoPassed402450 ms$0.03