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Email Validator MCP Server

answering

Email Validator is answering right now. Last checked 11 min ago. It exposes 1 tools.

Validates email syntax and MX records. x402 payment required (testnet USDC).

Uptime history 8 days of history · worst day 99%
8 days agonow
100.0%
Uptime 24h
92 of 92 checks
1
Tools
read from the server
611 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 5 September 2026. No other catalogue keeps this.

5 Sep a tool description was rewritten email_validator

Email Validator does not always answer

Over the last week it answered 99.8% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add email-validator --transport http https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "email-validator": {
      "url": "https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.email-validator]
url = "https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "email-validator": {
      "url": "https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "email-validator": {
      "url": "https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp"
    }
  }
}

Available tools 1

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

email
email_validator
Validates email syntax and MX records. x402 payment required (Base mainnet USDC).

Endpoints

URLTransportStateLatencyChecked
https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp streamable-http answering 589 ms 11 min ago

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Email Validator — questions

Answers built from our own checks of this server.

What can Email Validator do?
It exposes 1 tools, read directly from the server on our last check. Among them: email_validator. 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 Email Validator working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 611 ms. The bar chart above shows every period we have measured.
How do I connect Email Validator?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Email Validator need an API key?
No. Email Validator completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Email Validator?
It answers our handshake in 611 ms on average, which is faster than 24% 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.