Domain Appraise Estimate

{
  "characteristics": {
    "has_hyphen": false,
    "has_number": false,
    "is_dictionary_word": true,
    "length": 3,
    "pronounceable": true
  },
  "domain": "pay.com",
  "factors": [
    {
      "detail": "3-character name (ultra premium)",
      "factor": "length",
      "impact": 35
    },
    {
      "detail": ".com TLD",
      "factor": "tld",
      "impact": 25
    },
    {
      "detail": "Exact dictionary word",
      "factor": "dictionary_word",
      "impact": 20
    },
    {
      "detail": "Finance keyword: pay",
      "factor": "keyword_category",
      "impact": 10
    }
  ],
  "findings": [],
  "grade": "A",
  "name": "pay",
  "score": 100,
  "tld": "com",
  "value_score": 100,
  "value_tier": "premium"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://netintel.dev/domain-appraise/estimate?domain=pay.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-appraise/estimate?domain=pay.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 $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
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 $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fnetintel.dev%2Fdomain-appraise%2Festimate
const res = await pay("https://netintel.dev/domain-appraise/estimate?domain=pay.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 $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
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-appraise/estimate?domain=pay.com")
    print(res.status_code, res.text)