Domain Due Diligence

{
  "domain": "acme.com",
  "findings": [
    {
      "deduction": -20,
      "detail": "acme.com is already registered",
      "rule": "not_available"
    }
  ],
  "generated_at": "2026-06-16T01:00:00Z",
  "grade": "B",
  "name": "acme",
  "score": 80,
  "sections": {
    "appraisal": {
      "available": true,
      "value_score": 95,
      "value_tier": "premium"
    },
    "availability": {
      "available": true,
      "expires_at": "2025-06-01T00:00:00Z",
      "is_available": false,
      "registrar": "GoDaddy LLC",
      "status": "registered"
    },
    "tld_pricing": {
      "available": true,
      "cheapest": {
        "domain": "acme.xyz",
        "register": 1.99
      },
      "cheapest_premium": {
        "domain": "acme.com",
        "register": 10.99
      }
    }
  },
  "sections_failed": 0,
  "sections_ok": 3,
  "tld": "com",
  "verdict": "taken_premium"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://netintel.dev/domain-due-diligence?domain=acme.com'

# 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://netintel.dev/domain-due-diligence?domain=acme.com' \
  | 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 $0.2 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.2" });
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 $0.2 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fnetintel.dev%2Fdomain-due-diligence
const res = await pay("https://netintel.dev/domain-due-diligence?domain=acme.com");
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 $0.2 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.2"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://netintel.dev/domain-due-diligence?domain=acme.com")
    print(res.status_code, res.text)