Tools Check Endpoint

{
  "checks": [
    {
      "evidence": "unexpected status 405 Method Not Allowed",
      "name": "spec_compliance",
      "result": "fail",
      "weight": 35
    },
    {
      "evidence": "no challenge to price",
      "name": "price_sanity",
      "result": "unknown",
      "weight": 15
    },
    {
      "evidence": "no payTo address to check",
      "name": "payto_onchain",
      "result": "unknown",
      "weight": 25
    },
    {
      "evidence": "origin not found on x402scan or in our market-baseline snapshot — no third-party discovery footprint",
      "name": "directory_presence",
      "result": "caution",
      "weight": 15
    },
    {
      "evidence": "HTTPS enforced; domain registration age unavailable (RDAP lookup failed or unsupported TLD)",
      "name": "infra_hygiene",
      "result": "pass",
      "weight": 10
    },
    {
      "evidence": "no reseller signals",
      "name": "reseller_markup",
      "result": "pass",
      "weight": 0
    }
  ],
  "resellerMarkup": {
    "confidence": "none",
    "evidence": [
      "No upstream catalog entry reached the two-distinctive-signal threshold."
    ],
    "markupMultiple": null,
    "matchedUpstream": null,
    "priceAsOf": null,
    "upstreamPriceUsd": null,
    "verdict": "no reseller signals"
  },
  "score": 29,
  "url": "https://example.com/api/paid",
  "verdict": "fail"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://diligence.x402supply.com/tools/check_endpoint' \
  -H 'content-type: application/json' \
  --data-raw '{"url":"https://example.com/api/paid"}'

# 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://diligence.x402supply.com/tools/check_endpoint' \
  -H 'content-type: application/json' \
  --data-raw '{"url":"https://example.com/api/paid"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fdiligence.x402supply.com%2Ftools%2Fcheck_endpoint&method=POST
const res = await pay("https://diligence.x402supply.com/tools/check_endpoint", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "url": "https://example.com/api/paid"
  }),
});
console.log(res.status, await res.text());

# 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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://diligence.x402supply.com/tools/check_endpoint",
        json={
            "url": "https://example.com/api/paid",
        },
    )
    print(res.status_code, res.text)