email-check

curl -sS -D - "https://x402-gateway.forge-x402.workers.dev/api/email-check?email=postmaster%40gmail.com"

{
  "x402Version": 2,
  "error": "Payment required",
  "resource": {
    "url": "https://x402-gateway.forge-x402.workers.dev/api/email-check",
    "description": "Email address check: RFC syntax, domain MX/A records (deliverability signal, no SMTP probe), disposable-domain and role-account flags.",
    "mimeType": "application/json"
  },
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0x7B8bf45ac6AcbA6D4CFB626b57D3f5fF3C9C89F7",
      "maxTimeoutSeconds": 120,
      "extra": {
        "name": "USD Coin",
        "version": "2"
      }
    }
  ]
}

curl -sS "https://x402-gateway.forge-x402.workers.dev/api/email-check?email=postmaster%40gmail.com" \
  -H "PAYMENT-SIGNATURE: $PAYMENT"

{
  "email": "contact@example.com",
  "syntax_ok": true,
  "domain": "example.com",
  "has_mx": true,
  "mx": [
    "mx.example.com"
  ],
  "disposable": false,
  "role_account": true
}

curl -sS "https://agent-hub.dentreprise.workers.dev/demo/email-check.json"

{
  "demo": true,
  "demo_label": "DEMO / SAMPLE — not live data. This is a labelled example response and was not charged.",
  "charged": false,
  "tool": "/api/email-check",
  "docs": "https://agent-hub.dentreprise.workers.dev/tools/email-check/",
  "how_to_get_live_data": "Call the live URL on the original gateway with an x402 v2 client (@x402/fetch or the Python package x402). This file is a labelled sample only.",
  "sample": {
    "email": "contact@example.com",
    "syntax_ok": true,
    "domain": "example.com",
    "has_mx": true,
    "mx": [
      "mx.example.com"
    ],
    "disposable": false,
    "role_account": true
  }
}

import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";

// Official x402 v2 client. The older package name "x402-fetch" is the deprecated v1 line.
const account = privateKeyToAccount(process.env.EVM_PRIVATE_KEY);
const fetchWithPayment = wrapFetchWithPaymentFromConfig(fetch, {
  schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(account) }],
});

const res = await fetchWithPayment(
  "https://x402-gateway.forge-x402.workers.dev/api/email-check?email=postmaster%40gmail.com"
);
console.log(await res.json());

import asyncio
import os
from eth_account import Account
from x402 import x402Client
from x402.http.clients import x402HttpxClient
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Official PyPI package: x402
account = Account.from_key(os.environ["EVM_PRIVATE_KEY"])
client = x402Client()
register_exact_evm_client(client, EthAccountSigner(account))

async def main():
    async with x402HttpxClient(client) as http:
        res = await http.get("https://x402-gateway.forge-x402.workers.dev/api/email-check?email=postmaster%40gmail.com")
        print(res.json())

asyncio.run(main())

# Sync alternative:
# from x402 import x402ClientSync
# from x402.http.clients import x402_requests
# client = x402ClientSync()
# register_exact_evm_client(client, EthAccountSigner(account))
# with x402_requests(client) as session:
#     print(session.get("https://x402-gateway.forge-x402.workers.dev/api/email-check?email=postmaster%40gmail.com").json())

{
  "mcpServers": {
    "forge-agent-hub": {
      "command": "node",
      "args": ["/path/to/forge-agent-mcp/src/server.mjs"]
    },
    "forge-agent-api": {
      "url": "https://x402-gateway.forge-x402.workers.dev/mcp",
      "transport": "streamable-http"
    }
  }
}

import { DynamicStructuredTool } from "@langchain/core/tools";
import { z } from "zod";
import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.EVM_PRIVATE_KEY);
const fetchWithPayment = wrapFetchWithPaymentFromConfig(fetch, {
  schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(account) }],
});

export const email_check = new DynamicStructuredTool({
  name: "email_check",
  description: "Email address check: RFC syntax, domain MX/A records (deliverability signal, no SMTP probe), disposable-domain and role-account flags.",
  schema: z.object({}),
  func: async (input) => {
    const res = await fetchWithPayment("https://x402-gateway.forge-x402.workers.dev/api/email-check" + "?" + new URLSearchParams(input));
    return JSON.stringify(await res.json());
  },
});

import os
from langchain_core.tools import tool
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

account = Account.from_key(os.environ["EVM_PRIVATE_KEY"])
client = x402ClientSync()
register_exact_evm_client(client, EthAccountSigner(account))

@tool
def email_check() -> str:
    """Email address check: RFC syntax, domain MX/A records (deliverability signal, no SMTP probe), disposable-domain and role-account flags."""
    with x402_requests(client) as session:
        return session.get("https://x402-gateway.forge-x402.workers.dev/api/email-check").text