ToolVet
78trust / 100

Risk Blacklists

by TraceFast in Onchain & crypto

x402 APIPassing, checked 3 h ago

TraceFast risk data: is this Ethereum address on a token issuer's on-chain blacklist? One row per issuer contract that ever listed it (USDC, USDT, any token with a blacklist) — listed now or not, the issuer's weight (`authorityTier`), first and latest events — plus the issuers that froze or destroyed its funds. Read from the issuers' own contracts, not from sanctions lists. Path address: `0x`-prefixed. Docs: https://docs.tracefast.xyz/api/risk-blacklist-status.md

GET
https://mpp.tracefast.xyz/api/v1/chains/1/risk/blacklists/:address
Price
$0.1
per call in USDC
Uptime
100%
last 30 days
Response time
136 ms
533 ms slowest 5%
Last check
Passed
3 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 · Watch with other listings

How to call it

GET https://mpp.tracefast.xyz/api/v1/chains/1/risk/blacklists/:address

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://mpp.tracefast.xyz/api/v1/chains/1/risk/blacklists/:address

Example response

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

Example response, 39 lines
{
  "data": {
    "address": "0x8576acc5c05d6ce88f4e49bf65bdf0c62f91353c",
    "chainId": 1,
    "enforcement": [],
    "listedBy": [
      {
        "authorityTier": "recognized_issuer",
        "firstListedBlock": 14481178,
        "issuerContract": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
        "lastAction": "add",
        "lastEventBlock": 14481178,
        "lastEventKind": "membership",
        "lastEventName": "Blacklisted",
        "lastEventTimestamp": 1648558143,
        "lastEventTxHash": "0x5906c3dac2d75f141b72baa61842a9881e9d31ee36f761ffc7059ffc86c7e452",
        "listCount": 1,
        "listed": true,
        "tokenSymbol": "USDC",
        "unlistCount": 0
      },
      {
        "authorityTier": "recognized_issuer",
        "firstListedBlock": 18750100,
        "issuerContract": "0xdac17f958d2ee523a2206206994597c13d831ec7",
        "lastAction": "add",
        "lastEventBlock": 18750100,
        "lastEventKind": "membership",
        "lastEventName": "AddedBlackList",
        "lastEventTimestamp": 1702142231,
        "lastEventTxHash": "0xdbd24a66f187242bf3a8f8ce4a50a4b9143889dc988c7113d2e1069165332534",
        "listCount": 1,
        "listed": true,
        "tokenSymbol": "USDT",
        "unlistCount": 0
      }
    ]
  }
}

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://mpp.tracefast.xyz/api/v1/chains/1/risk/blacklists/:address'

# 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://mpp.tracefast.xyz/api/v1/chains/1/risk/blacklists/:address' \
  | 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%2Fmpp.tracefast.xyz%2Fapi%2Fv1%2Fchains%2F1%2Frisk%2Fblacklists%2F%3Aaddress
const res = await pay("https://mpp.tracefast.xyz/api/v1/chains/1/risk/blacklists/:address");
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://mpp.tracefast.xyz/api/v1/chains/1/risk/blacklists/:address")
    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
3 h agoPassed402202 ms$0.1
6 h agoPassed402493 ms$0.1
11 h agoPassed402439 ms$0.1
15 h agoPassed402469 ms$0.1
19 h agoPassed402613 ms$0.1
Show 10 older checks
24 h agoPassed402340 ms$0.1
28 h agoPassed402524 ms$0.1
32 h agoPassed402113 ms$0.1
36 h agoPassed402533 ms$0.1
40 h agoPassed402199 ms$0.1
44 h agoPassed402114 ms$0.1
2 days agoPassed40235 ms$0.1
2 days agoPassed402123 ms$0.1
2 days agoPassed402136 ms$0.1
2 days agoPassed402477 ms$0.1

History

12 Oct 2026Price changed from $0.2 to $0.1