Mails.ai — Agent Email

latest · 0.2.9

A real inbox for AI agents: send, receive and thread email, behind a prompt-injection firewall.

Homepage: mails.ai
MCP registry: io.github.rolloutsai/mails-agent-email

Install

Needs an env var: MAILS_API_KEY — replace the <placeholders> with your values.

claude mcp add io-github-rolloutsai-mails-agent-email --env MAILS_API_KEY=<MAILS_API_KEY> -- npx @mailsai/mcp-server

/mcp confirms it's connected.

Install

Or add it manually in ~/.cursor/mcp.json:

{
  "mcpServers": {
    "io-github-rolloutsai-mails-agent-email": {
      "command": "npx",
      "args": [
        "@mailsai/mcp-server"
      ],
      "env": {
        "MAILS_API_KEY": "<MAILS_API_KEY>"
      }
    }
  }
}

In claude_desktop_config.json (Settings → Developer → Edit Config), then restart:

{
  "mcpServers": {
    "io-github-rolloutsai-mails-agent-email": {
      "command": "npx",
      "args": [
        "@mailsai/mcp-server"
      ],
      "env": {
        "MAILS_API_KEY": "<MAILS_API_KEY>"
      }
    }
  }
}

Config entry, any MCP client:

{
  "command": "npx",
  "args": [
    "@mailsai/mcp-server"
  ],
  "env": {
    "MAILS_API_KEY": "<MAILS_API_KEY>"
  }
}

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Version history1

0.2.9release date unknown

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Details

Transport: stdio
Status: listed
Source: Imported from the MCP registry
Homepage: site ↗