ToolVet
15trust / 100

Token Approvals

by Vextorium in Onchain & crypto

x402 APIFailing, checked 4 h ago

Which contracts a wallet has allowed to move its ERC-20 tokens: checks the chain's main tokens (or the ones you pass) over recent blocks plus common spenders (Uniswap routers, Permit2), returning the live allowance and flagging unlimited ones. Find and revoke what you don't use. Usually 2-10 s. Not available on Arbitrum (its public nodes keep no log history); on some chains the public node limits how far back it can search (reported in the result).

POST
https://api.vextorium.com/v1/token-approvals
Price
$0.005
per call in USDC
Uptime
0.0%
last 30 days
Response time
-
no timed checks yet
Last check
Failed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 4 h ago: Amount "0.005" is not in atomic token units

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

How to call it

POST https://api.vextorium.com/v1/token-approvals

Each call costs $0.005 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://api.vextorium.com/v1/token-approvals
content-type: application/json

{
  "network": "base",
  "wallet": "0x9b9B3F22BEBD1e3E528C2759a2ca34cD2e0184A1"
}

Parameters

ParameterTypeRequiredDescription
blocksintegerNo
networkstringNoChain (default base) One of: base, ethereum, arbitrum, optimism, polygon, bnb, avalanche, gnosis, line, scroll, sonic, unichain.
tokensarray of stringNo
walletstringYes

Example response

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

{
  "active_approvals": 0,
  "approvals": [],
  "network": "base",
  "note": "Review the listed tokens (or the network's main ones) and the usual spenders; to revoke use revoke-approval.",
  "reviewed_blocks": 50000,
  "reviewed_tokens": 5,
  "unlimited": 0,
  "wallet": "0x9b9B3F22BEBD1e3E528C2759a2ca34cD2e0184A1"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/v1/token-approvals' \
  -H 'content-type: application/json' \
  --data-raw '{"network":"base","wallet":"0x9b9B3F22BEBD1e3E528C2759a2ca34cD2e0184A1"}'

# 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://api.vextorium.com/v1/token-approvals' \
  -H 'content-type: application/json' \
  --data-raw '{"network":"base","wallet":"0x9b9B3F22BEBD1e3E528C2759a2ca34cD2e0184A1"}' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.vextorium.com%2Fv1%2Ftoken-approvals&method=POST
const res = await pay("https://api.vextorium.com/v1/token-approvals", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "network": "base",
    "wallet": "0x9b9B3F22BEBD1e3E528C2759a2ca34cD2e0184A1"
  }),
});
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.vextorium.com/v1/token-approvals",
        json={
            "network": "base",
            "wallet": "0x9b9B3F22BEBD1e3E528C2759a2ca34cD2e0184A1",
        },
    )
    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
4 h agoAmount "0.005" is not in atomic token units402101 ms$0.005
9 h agoAmount "0.005" is not in atomic token units402453 ms$0.005
14 h agoAmount "0.005" is not in atomic token units402100 ms$0.005
19 h agoAmount "0.005" is not in atomic token units402157 ms$0.005
23 h agoAmount "0.005" is not in atomic token units402242 ms$0.005
Show 10 older checks
28 h agoAmount "0.005" is not in atomic token units402102 ms$0.005
33 h agoAmount "0.005" is not in atomic token units402103 ms$0.005
37 h agoAmount "0.005" is not in atomic token units40279 ms$0.005
42 h agoAmount "0.005" is not in atomic token units402109 ms$0.005
47 h agoAmount "0.005" is not in atomic token units402119 ms$0.005
2 days agoAmount "0.005" is not in atomic token units402116 ms$0.005
2 days agoAmount "0.005" is not in atomic token units40286 ms$0.005
3 days agoAmount "0.005" is not in atomic token units40283 ms$0.005
3 days agoAmount "0.005" is not in atomic token units402102 ms$0.005
3 days agoAmount "0.005" is not in atomic token units402323 ms$0.005