mcp-mailtrap

mcpj-mailtrap

Mailtrap MCP server — analytics, email logs, contacts, sandbox testing & more via natural language.
Built with Bun + TypeScript. Works with Claude, Cursor, and any MCP client.

Quick Start

1. Get Your API Token

Get an API token from Mailtrap API Tokens.

2. Add to Claude Code

Minimal

claude mcp add mailtrap -e MAILTRAP_API_TOKEN=your_token -- npx mcpj-mailtrap

Full

claude mcp add mailtrap \
  -e MAILTRAP_API_TOKEN=your_token \
  -e MAILTRAP_SENDING_TOKEN=your_sending_token \
  -e MAILTRAP_ACCOUNT_ID=12345 \
  -e [email protected] \
  -e MAILTRAP_TEST_INBOX_ID=12345 \
  -- npx mcpj-mailtrap

That's it. Restart Claude Code and the tools are available.

Also works with bunx mcpj-mailtrap@latest if you have Bun. Requires Node 18+ when running via npx.

Claude Desktop / Cursor

Minimal

{
  "mcpServers": {
    "mailtrap": {
      "command": "npx",
      "args": ["-y", "mcpj-mailtrap@latest"],
      "env": {
        "MAILTRAP_API_TOKEN": "your_token"
      }
    }
  }
}

Full

{
  "mcpServers": {
    "mailtrap": {
      "command": "npx",
      "args": ["-y", "mcpj-mailtrap@latest"],
      "env": {
        "MAILTRAP_API_TOKEN": "your_token",
        "MAILTRAP_SENDING_TOKEN": "your_sending_token",
        "MAILTRAP_ACCOUNT_ID": "12345",
        "MAILTRAP_DEFAULT_FROM_EMAIL": "[email protected]",
        "MAILTRAP_TEST_INBOX_ID": "12345"
      }
    }
  }
}

curl -Lo mcpj-mailtrap https://github.com/pijusz/mcp-mailtrap/releases/latest/download/mcpj-mailtrap-darwin-arm64
chmod +x mcpj-mailtrap
sudo mv mcpj-mailtrap /usr/local/bin/
claude mcp add mailtrap -e MAILTRAP_API_TOKEN=your_token -- /usr/local/bin/mcpj-mailtrap

Invoke-WebRequest -Uri "https://github.com/pijusz/mcp-mailtrap/releases/latest/download/mcpj-mailtrap-windows-x64.exe" -OutFile "$env:LOCALAPPDATA\mcpj-mailtrap.exe"
claude mcp add mailtrap -e MAILTRAP_API_TOKEN=your_token -- "%LOCALAPPDATA%\mcpj-mailtrap.exe"

Tools (46)

Analytics

Email Logs

Sending

Templates

Contacts

Email Sandbox

Domains

Accounts

Configuration

Updates

Using npx @latest (recommended): You always get the latest version — no manual updates needed.

Using a binary: The server checks for new releases on startup and logs to stderr if outdated:

[mcpj-mailtrap] Update available: v0.2.0 (current: v0.1.0)

Check your installed version:

mcpj-mailtrap --version

Development

Requires Bun.

git clone https://github.com/pijusz/mcp-mailtrap.git
cd mcp-mailtrap
bun install
bun test           # tests
bun run typecheck  # tsc
bun run build      # standalone binary
bun run inspect    # MCP Inspector
bun run check      # biome format + lint

License

MIT