x402 Email Verifier MCP Server

by workers-microtools-x402-x402-email-verifier Your server? Claim it

answering

x402 Email Verifier is answering right now. Last checked 12 min ago. It exposes 2 tools. Last commit 17 Oct 2026.

Email verification for AI agents: syntax, MX, disposable, role, score. $0.001 USDC/call via x402.

Uptime history 15 days of history

15 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

1032 ms

Response time

average over 24h

Stars

last commit 17 Oct 2026

Nothing serious here today

Today is the operative word: we check x402 Email Verifier every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add email-verifier --transport http https://x402-email-verifier.microtools-x402.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://x402-email-verifier.microtools-x402.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.email-verifier]
url = "https://x402-email-verifier.microtools-x402.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "email-verifier": {
      "url": "https://x402-email-verifier.microtools-x402.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "email-verifier": {
      "type": "http",
      "url": "https://x402-email-verifier.microtools-x402.workers.dev/mcp"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

email_verify

Verify an email address: syntax, MX records, disposable-domain and role-address detection, quality score 0-100. Costs $0.001 USDC per call via x402.

health

health

Free health check. Returns service status, price and network.

Endpoints

URL	Transport	State	Latency	Checked
https://x402-email-verifier.microtools-x402.workers.dev/mcp	streamable-http	answering	1423 ms	12 min ago

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x402 Email Verifier — questions

Answers built from our own checks of this server.

What can x402 Email Verifier do?

It exposes 2 tools, read directly from the server on our last check. Among them: email_verify, health. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is x402 Email Verifier working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 1032 ms. The bar chart above shows every period we have measured.

How do I connect x402 Email Verifier?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does x402 Email Verifier need an API key?

No. x402 Email Verifier completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is x402 Email Verifier?

It answers our handshake in 1032 ms on average, which is faster than 5% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is x402 Email Verifier open source?

The code is open source: it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at x402-email-verifier.microtools-x402.workers.dev, which runs on its operator's own terms.