ToolVet
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Tx Guard

by RugShield Solana Tx Guard in Onchain & crypto

x402 APIPassing, checked 43 min ago

Check an unsigned Solana transaction before signing. Send its base64 serialization; malformed input is rejected before payment. We simulate it on mainnet and return ALLOW, WARN or BLOCK with SOL and token balance changes and reasons, including dangerous approvals, owner changes, excessive outflows and redirected swaps. Solana only. The published sample is synthetic and only shows an HTTP 402 quote; replace it with a current unsigned transaction before paying.

POST
https://getrugshield.com/v1/tx-guard
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
225 ms
460 ms slowest 5%
Last check
Passed
43 min 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

POST https://getrugshield.com/v1/tx-guard

Each call costs $0.01 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.

POST https://getrugshield.com/v1/tx-guard
content-type: application/json

{
  "transaction": "AIABAAEDAQIDBAUGBwgJCgsMDQ4PEBESExQVFhcYGRobHB0eHyAhIiMkJSYnKCkqKywtLi8wMTIzNDU2Nzg5Ojs8PT4/QAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAgIAAQwCAAAAAQAAAAAAAAAA"
}

Parameters

ParameterTypeRequiredDescription
intentobjectNooptional: max_sol_out, expected_mints_in, allowed_recipients
signerstringNowallet that will sign; defaults to the fee payer
transactionstringYesYour real unsigned Solana transaction serialized as base64; invalid input is rejected before payment

Example response

The listing has no example response.

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://getrugshield.com/v1/tx-guard' \
  -H 'content-type: application/json' \
  --data-raw '{"transaction":"AIABAAEDAQIDBAUGBwgJCgsMDQ4PEBESExQVFhcYGRobHB0eHyAhIiMkJSYnKCkqKywtLi8wMTIzNDU2Nzg5Ojs8PT4/QAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAgIAAQwCAAAAAQAAAAAAAAAA"}'

# 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 - -X POST 'https://getrugshield.com/v1/tx-guard' \
  -H 'content-type: application/json' \
  --data-raw '{"transaction":"AIABAAEDAQIDBAUGBwgJCgsMDQ4PEBESExQVFhcYGRobHB0eHyAhIiMkJSYnKCkqKywtLi8wMTIzNDU2Nzg5Ojs8PT4/QAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAgIAAQwCAAAAAQAAAAAAAAAA"}' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fgetrugshield.com%2Fv1%2Ftx-guard&method=POST
const res = await pay("https://getrugshield.com/v1/tx-guard", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "transaction": "AIABAAEDAQIDBAUGBwgJCgsMDQ4PEBESExQVFhcYGRobHB0eHyAhIiMkJSYnKCkqKywtLi8wMTIzNDU2Nzg5Ojs8PT4/QAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAgIAAQwCAAAAAQAAAAAAAAAA"
  }),
});
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://getrugshield.com/v1/tx-guard",
        json={
            "transaction": "AIABAAEDAQIDBAUGBwgJCgsMDQ4PEBESExQVFhcYGRobHB0eHyAhIiMkJSYnKCkqKywtLi8wMTIzNDU2Nzg5Ojs8PT4/QAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAgIAAQwCAAAAAQAAAAAAAAAA",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
43 min agoPassed402301 ms$0.01
6 h agoPassed402133 ms$0.01
11 h agoPassed402460 ms$0.01
15 h agoPassed402321 ms$0.01
20 h agoPassed402216 ms$0.01
Show 10 older checks
25 h agoPassed402415 ms$0.01
29 h agoPassed402224 ms$0.01
33 h agoPassed402208 ms$0.01
38 h agoPassed402139 ms$0.01
42 h agoPassed402223 ms$0.01
46 h agoPassed402308 ms$0.01
2 days agoPassed402321 ms$0.01
2 days agoPassed402293 ms$0.01
2 days agoPassed402373 ms$0.01
3 days agoPassed402413 ms$0.01