ToolVet
77trust / 100

Domain Preflight

by Forest Gas Station in Developer tools

x402 APIPassing, checked 2 h ago

Resolve a bare public domain into operational registration, DNS, HTTPS/TLS and mail-policy state using IANA-routed RDAP, DNS, MX/TXT/SPF/DMARC and a bounded TLS probe. No registrant personal data, vulnerability scanning, mailbox existence or deliverability claim. Provider uncertainty is explicit.

POST https://http--forest-gas-station--lcjl27p8lmjs.code.run/domain/preflight

Last 30 days

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Status and outage history · Atom feed

Uptime
95.2%
Response time
199 ms typical, 302 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

POST https://http--forest-gas-station--lcjl27p8lmjs.code.run/domain/preflight

Each call costs $0.003 in USDC on Base Sepolia, paid with the request over x402.

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.

POST https://http--forest-gas-station--lcjl27p8lmjs.code.run/domain/preflight
content-type: application/json

{
  "domain": "example.com"
}

Parameters

ParameterTypeRequiredDescription
domainstringYesBare DNS domain name, not a URL, path, IP address or email.

Example response

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

Example response, 43 lines
{
  "capability": "domain.preflight",
  "data": {
    "dns": {
      "a": true,
      "aaaa": true,
      "nameservers": [
        "a.iana-servers.net",
        "b.iana-servers.net"
      ],
      "resolves": true
    },
    "domain": "example.com",
    "https": {
      "expires_at": "2027-01-01T00:00:00.000Z",
      "reachable": true,
      "redirect_target": null,
      "tls_present": true,
      "valid_certificate": true
    },
    "mail": {
      "dmarc": true,
      "mx": false,
      "mx_hosts": [],
      "spf": true
    },
    "registered": true,
    "registration": {
      "created_at": "1995-08-14T04:00:00Z",
      "expires_at": "2027-08-13T04:00:00Z",
      "registrar": "Example Registrar",
      "statuses": []
    }
  },
  "meta": {
    "cache": "miss",
    "checked_at": "2026-09-26T00:00:00.000Z",
    "duration_ms": 75,
    "provider": "rdap+dns+https"
  },
  "ok": true,
  "version": "1"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://http--forest-gas-station--lcjl27p8lmjs.code.run/domain/preflight' \
  -H 'content-type: application/json' \
  --data-raw '{"domain":"example.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 - -X POST 'https://http--forest-gas-station--lcjl27p8lmjs.code.run/domain/preflight' \
  -H 'content-type: application/json' \
  --data-raw '{"domain":"example.com"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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 $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
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 $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fhttp--forest-gas-station--lcjl27p8lmjs.code.run%2Fdomain%2Fpreflight&method=POST
const res = await pay("https://http--forest-gas-station--lcjl27p8lmjs.code.run/domain/preflight", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "domain": "example.com"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# 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 $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://http--forest-gas-station--lcjl27p8lmjs.code.run/domain/preflight",
        json={
            "domain": "example.com",
        },
    )
    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
2 h agoPassed402339 ms$0.003
6 h agoPassed402269 ms$0.003
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2 days agoPassed402243 ms$0.003