X402scan Scan

{
  "payment_options": [
    {
      "amount_atomic": "10000",
      "asset": "0x8335...2913",
      "network": "eip155:8453",
      "payTo": "0x.....",
      "scheme": "exact"
    }
  ],
  "reasons": [],
  "seller_reputation": [
    {
      "cataloged_resources": 4,
      "in_cdp_catalog": true,
      "network_hint": "evm",
      "payTo": "0x....."
    }
  ],
  "signals": {
    "discovery_extension_declared": true,
    "discovery_extension_typed": true,
    "https": true,
    "payment_terms_well_formed": true,
    "public_host": true,
    "reachable": true,
    "returns_402": true,
    "seller_has_cdp_settled_history": true,
    "x402_terms_parsed": true
  },
  "tier": "ESTABLISHED",
  "trust_score": 85,
  "url": "https://example.com/functions/v1/some-service/v1/check",
  "well_formed_x402": true
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://gdzlcxskuhupymyxywzm.supabase.co/functions/v1/x402scan/v1/scan?url=https%3A%2F%2Fgdzlcxskuhupymyxywzm.supabase.co%2Ffunctions%2Fv1%2Ftokenguard-evm%2Fv1%2Fcheck'

# 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://gdzlcxskuhupymyxywzm.supabase.co/functions/v1/x402scan/v1/scan?url=https%3A%2F%2Fgdzlcxskuhupymyxywzm.supabase.co%2Ffunctions%2Fv1%2Ftokenguard-evm%2Fv1%2Fcheck' \
  | 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%2Fgdzlcxskuhupymyxywzm.supabase.co%2Ffunctions%2Fv1%2Fx402scan%2Fv1%2Fscan
const res = await pay("https://gdzlcxskuhupymyxywzm.supabase.co/functions/v1/x402scan/v1/scan?url=https%3A%2F%2Fgdzlcxskuhupymyxywzm.supabase.co%2Ffunctions%2Fv1%2Ftokenguard-evm%2Fv1%2Fcheck");
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.get("https://gdzlcxskuhupymyxywzm.supabase.co/functions/v1/x402scan/v1/scan?url=https%3A%2F%2Fgdzlcxskuhupymyxywzm.supabase.co%2Ffunctions%2Fv1%2Ftokenguard-evm%2Fv1%2Fcheck")
    print(res.status_code, res.text)