ToolVet
77trust / 100

Pre Trade Gate

by Pre-Trade Gate in Security & trust

x402 APIPassing, checked 20 min ago

The single call an agent makes before touching a Base token: token risk + sellability (honeypot/tax) + route/price-impact + deployer reputation, collapsed into one GO/HOLD/STOP verdict with an auditable receipt. Cheaper than the four checks à la carte. This is the tool to bind first.

GET
https://402.com.tr/api/x402/pre-trade-gate
Price
$0.1
per call in USDC
Uptime
100%
last 30 days
Response time
513 ms
751 ms slowest 5%
Last check
Passed
20 min ago, next in 11 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/pre-trade-gate

Each call costs $0.1 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/pre-trade-gate?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&amountUsd=1000

Parameters

ParameterTypeRequiredDescription
addressstringYesToken contract address
amountUsdstringNoTrade size in USD (optional)

Example response

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

{
  "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "checkedAt": "2026-10-11T17:08:54.732Z",
  "decision": "HOLD",
  "tradeSizeUsd": 1000
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.1.

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/pre-trade-gate?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&amountUsd=1000'

# 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/pre-trade-gate?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&amountUsd=1000' \
  | 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 $0.1 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.1" });
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 $0.1 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2F402.com.tr%2Fapi%2Fx402%2Fpre-trade-gate
const res = await pay("https://402.com.tr/api/x402/pre-trade-gate?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&amountUsd=1000");
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 $0.1 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.1"})
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/pre-trade-gate?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&amountUsd=1000")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
20 min agoPassed402581 ms$0.1
5 h agoPassed402504 ms$0.1
10 h agoPassed402518 ms$0.1
15 h agoPassed402397 ms$0.1
19 h agoPassed402535 ms$0.1
Show 10 older checks
24 h agoPassed402510 ms$0.1
28 h agoPassed402480 ms$0.1
33 h agoPassed402434 ms$0.1
36 h agoPassed402436 ms$0.1
41 h agoPassed402526 ms$0.1
45 h agoPassed402614 ms$0.1
2 days agoPassed402652 ms$0.1
2 days agoPassed402608 ms$0.1
2 days agoPassed402488 ms$0.1
3 days agoPassed402489 ms$0.1