ToolVet
36trust / 100

Lookalike Check

by SolSentry in Onchain & crypto

x402 APIFailing, checked 26 h ago

Address-poisoning pre-send check. Give the destination you are about to pay plus the addresses the user has paid before; returns findings ranked by confidence when the destination is a visual or prefix/suffix lookalike of a known contact. Stateless and offline — no RPC call, nothing stored.

GET
https://api.solsentry.app/x402/v1/lookalike-check
Price
n/a
per call in USDC
Uptime
63.0%
last 30 days
Response time
393 ms
1.0 s slowest 5%
Last check
Failed
26 h ago, next in 2 days

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 26 h ago: Expected HTTP 402, got 404

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

How to call it

GET https://api.solsentry.app/x402/v1/lookalike-check

Each call is paid with the request over x402. We can't price the token it asks for: see Payment terms.

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://api.solsentry.app/x402/v1/lookalike-check?contacts=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM&destination=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM

Parameters

ParameterTypeRequiredDescription
contactsstringYesComma-separated prior contact addresses
destinationstringYesAddress about to receive funds

Example response

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

{
  "confidence": "none",
  "contacts_checked": 1,
  "destination": "9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM",
  "findings": [],
  "latency_ms": 0,
  "provenance": {
    "as_of_slot": null,
    "cached": false,
    "fetched_at": "<ISO-8601 UTC>",
    "source": null
  },
  "suspect": false
}

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 'https://api.solsentry.app/x402/v1/lookalike-check?contacts=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM&destination=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM'

# 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://api.solsentry.app/x402/v1/lookalike-check?contacts=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM&destination=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/svm @solana/kit @scure/base
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactSvmScheme } from "@x402/svm/exact/client";
import { createKeyPairSignerFromBytes } from "@solana/kit";
import { base58 } from "@scure/base";

// Pays at most $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
registerExactSvmScheme(client, { signer: await createKeyPairSignerFromBytes(base58.decode(process.env.SVM_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%2Fapi.solsentry.app%2Fx402%2Fv1%2Flookalike-check
const res = await pay("https://api.solsentry.app/x402/v1/lookalike-check?contacts=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM&destination=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,svm]"
import os
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.svm import KeypairSigner
from x402.mechanisms.svm.exact.register import register_exact_svm_client

# Pays at most $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_svm_client(client, KeypairSigner.from_base58(os.environ["SVM_PRIVATE_KEY"]))

with x402_requests(client) as session:
    res = session.get("https://api.solsentry.app/x402/v1/lookalike-check?contacts=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM&destination=9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM")
    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
26 h agoExpected HTTP 402, got 404404377 ms-
2 days agoExpected HTTP 402, got 404404450 ms-
3 days agoExpected HTTP 402, got 404404467 ms-
4 days agoExpected HTTP 402, got 404404386 ms-
4 days agoExpected HTTP 402, got 404404398 ms-
Show 10 older checks
4 days agoExpected HTTP 402, got 404404408 ms-
4 days agoExpected HTTP 402, got 404404370 ms-
4 days agoExpected HTTP 402, got 404404358 ms-
5 days agoExpected HTTP 402, got 404404381 ms-
5 days agoExpected HTTP 402, got 4044041.0 s-
5 days agoPassed402459 ms$0.004
5 days agoPassed402405 ms$0.004
5 days agoPassed402393 ms$0.004
5 days agoPassed402421 ms$0.004
5 days agoPassed402407 ms$0.004