ToolVet
80trust / 100

Proxy Token Precheck

by Honeypot Check Before Trade in Onchain & crypto

x402 APIPassing, checked 1 h ago

Honeypot and rug check before a trade, built for trading bots that check every token in a loop: up to 5 token addresses per call (Base, Ethereum, BSC, Arbitrum, Polygon, Avalanche, Optimism or Solana), one decision each: ALLOW, CAUTION or BLOCK, with grade A to F, score, honeypot flag and the main reason. Based on our own on-chain checks (contract code, pools, real buy and sell simulation). Results are cached for 10 minutes, so repeat checks answer in milliseconds.

POST
https://agentsvc.io/api/v1/proxy/token-precheck
Price
$0.004
per call in USDC
Uptime
100%
last 30 days
Response time
94 ms
194 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

How to call it

POST https://agentsvc.io/api/v1/proxy/token-precheck

Each call costs $0.004 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://agentsvc.io/api/v1/proxy/token-precheck
content-type: application/json

{
  "chain": "base",
  "tokens": [
    "0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed",
    "0x532f27101965dd16442E59d40670FaF5eBB142E4"
  ]
}

Parameters

ParameterTypeRequiredDescription
chainstringNobase, ethereum, bsc, arbitrum, polygon, avalanche, optimism or solana. Default base
tokenstringNoSingle address (alternative to tokens)
tokensarray of string or objectNoUp to 5 addresses, strings or {token, chain}

Example response

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

{
  "data": {},
  "success": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.004.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agentsvc.io/api/v1/proxy/token-precheck' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"base","tokens":["0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed","0x532f27101965dd16442E59d40670FaF5eBB142E4"]}'

# 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://agentsvc.io/api/v1/proxy/token-precheck' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"base","tokens":["0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed","0x532f27101965dd16442E59d40670FaF5eBB142E4"]}' \
  | 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 $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
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 $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagentsvc.io%2Fapi%2Fv1%2Fproxy%2Ftoken-precheck&method=POST
const res = await pay("https://agentsvc.io/api/v1/proxy/token-precheck", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "chain": "base",
    "tokens": [
      "0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed",
      "0x532f27101965dd16442E59d40670FaF5eBB142E4"
    ]
  }),
});
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 $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agentsvc.io/api/v1/proxy/token-precheck",
        json={
            "chain": "base",
            "tokens": [
                "0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed",
                "0x532f27101965dd16442E59d40670FaF5eBB142E4",
            ],
        },
    )
    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
1 h agoPassed402100 ms$0.004
6 h agoPassed402107 ms$0.004
10 h agoPassed40293 ms$0.004
14 h agoPassed40239 ms$0.004
18 h agoPassed402130 ms$0.004
Show 10 older checks
23 h agoPassed402102 ms$0.004
27 h agoPassed40293 ms$0.004
31 h agoPassed40231 ms$0.004
34 h agoPassed40232 ms$0.004
38 h agoPassed402179 ms$0.004
42 h agoPassed402407 ms$0.004
46 h agoPassed40252 ms$0.004
2 days agoPassed402101 ms$0.004
2 days agoPassed40234 ms$0.004
2 days agoPassed40233 ms$0.004