LocalFree server, account needed

MX Probe MCP server

andrewchmr/mxprobe

Email verification for AI agents: returns send, hold or kill for an address with a reason, using local DNS checks or a hosted SMTP probe.

2 GitHub stars257 npm downloads / month

Install MX Probe in Claude Code

Claude Code
claude mcp add mx-probe -- npx -y mxprobe
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "mx-probe": {
      "command": "npx",
      "args": [
        "-y",
        "mxprobe"
      ]
    }
  }
}

Frequently asked questions

What does the MX Probe MCP server do?

Email verification for AI agents: returns send, hold or kill for an address with a reason, using local DNS checks or a hosted SMTP probe.

Is the MX Probe MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does MX Probe run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add MX Probe to Claude Code?

Run: claude mcp add mx-probe -- npx -y mxprobe

More communication MCP servers

View all