ToolVet
77trust / 100

Base Withdrawal

by Base Withdrawal Finalizer in Onchain & crypto

x402 APIPassing, checked 23 min ago

🆕 Beryl (2026-06-25) cut the single-proof withdrawal window from 7 days to 5, with a dual-proof fast path at ~1 day. Given a Base withdrawal-initiation tx, this decodes the L2ToL1MessagePasser event (the withdrawalHash, target & value needed to prove/finalize on L1) and estimates the finalization windows under the post-Beryl rules. For agents managing cross-chain liquidity.

GET
https://402.com.tr/api/x402/base-withdrawal
Price
$0.04
per call in USDC
Uptime
100%
last 30 days
Response time
490 ms
852 ms slowest 5%
Last check
Passed
23 min ago, next in 8 min

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/base-withdrawal

Each call costs $0.04 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/base-withdrawal?tx=0x311b9d14a7aa412e5c5a404e07c715ba6b25a5a032962785c088c246beeab302

Parameters

ParameterTypeRequiredDescription
txstringYesBase withdrawal-initiation txHash

Example response

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

{
  "initiatedAt": "2026-08-09T13:38:51.000Z",
  "isBaseWithdrawal": true,
  "sender": "0x4200000000000000000000000000000000000007",
  "target": "0x866E82a600A1414e583f7F13623F1aC5d58b0Afa",
  "tx": "0x311b9d14a7aa412e5c5a404e07c715ba6b25a5a032962785c088c246beeab302",
  "value": "0",
  "verdict": "likely_finalizable",
  "withdrawalHash": "0xc04c8c0acfc056dc9074c50c81df41a51287d9ce2f006b3627df6a6d55599bfc"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.04.

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/base-withdrawal?tx=0x311b9d14a7aa412e5c5a404e07c715ba6b25a5a032962785c088c246beeab302'

# 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/base-withdrawal?tx=0x311b9d14a7aa412e5c5a404e07c715ba6b25a5a032962785c088c246beeab302' \
  | 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 $0.04 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.04" });
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 $0.04 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2F402.com.tr%2Fapi%2Fx402%2Fbase-withdrawal
const res = await pay("https://402.com.tr/api/x402/base-withdrawal?tx=0x311b9d14a7aa412e5c5a404e07c715ba6b25a5a032962785c088c246beeab302");
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 $0.04 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.04"})
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/base-withdrawal?tx=0x311b9d14a7aa412e5c5a404e07c715ba6b25a5a032962785c088c246beeab302")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
23 min agoPassed402852 ms$0.04
5 h agoPassed402521 ms$0.04
10 h agoPassed402512 ms$0.04
15 h agoPassed402445 ms$0.04
19 h agoPassed402452 ms$0.04
Show 10 older checks
24 h agoPassed402490 ms$0.04
28 h agoPassed402542 ms$0.04
32 h agoPassed402468 ms$0.04
36 h agoPassed402349 ms$0.04
41 h agoPassed402437 ms$0.04
45 h agoPassed402607 ms$0.04
2 days agoPassed402491 ms$0.04
2 days agoPassed402337 ms$0.04
2 days agoPassed402468 ms$0.04
3 days agoPassed402904 ms$0.04