Fastmail Mcp Server

Name: Fastmail Mcp Server
Author: alexdiazdecerio

by alexdiazdecerio

Professional MCP Server for Fastmail email management using JMAP API - Integrates with Claude Desktop

9 0 tools GitHub

No known CVEs

MIT license

Stale

Last commit 342d ago

Works with most clients

Transport: stdio

0 tools

Grade F

Edit this pageView history

Communication

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "fastmail-mcp-server": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/fastmail-mcp-server)](https://mcppedia.org/s/fastmail-mcp-server)

Read me

What Fastmail Mcp Server does

npm run build # Compile TypeScript npm run watch # Watch mode for development npm run dev # Build and run server npm run inspector # Debug with MCP inspector

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

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Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

26/100across 5 weighted dimensions

How we score →

0255075100

−74

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

Reviews

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Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Fastmail Mcp Server safe to use?: Fastmail Mcp Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install Fastmail Mcp Server?: Fastmail Mcp Server can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with Fastmail Mcp Server?: Fastmail Mcp Server is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is Fastmail Mcp Server actively maintained?: Fastmail Mcp Server is less actively maintained — last commit was 342 days ago. It has 9 GitHub stars.

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MCP Security Weekly

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

🧪 Development

Available Scripts

npm run build # Compile TypeScript npm run watch # Watch mode for development npm run dev # Build and run server npm run inspector # Debug with MCP inspector

Testing

npm test # Run test suite npm run lint # Code quality checks npm audit # Security vulnerability scan

🤝 Contributing

We welcome contributions! Please see our Contributing Guide for details.

Development Workflow

Fork the repository

Create a feature branch (git checkout -b feature/amazing-feature)

Commit your changes (git commit -m 'Add amazing feature')

Push to the branch (git push origin feature/amazing-feature)

Open a Pull Request

📈 Roadmap

Email Templates - Reusable email templates

Advanced Analytics - Email usage insights and reports ✅ COMPLETED v1.1.0

Multi-Account Support - Manage multiple Fastmail accounts

Webhook Support - Real-time email notifications

Plugin System - Extensible architecture for custom features

Threading Reliability - Fix intermittent reply functionality issues

🙏 Acknowledgments

Fastmail - For their excellent JMAP API

Anthropic - For the MCP protocol and Claude integration

Community - For feedback, contributions, and support

⭐ If this project helped you, please give it a star on GitHub! ⭐

Frequently Asked Questions

Is Fastmail Mcp Server safe to use?

Fastmail Mcp Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install Fastmail Mcp Server?

Fastmail Mcp Server can be installed by cloning its GitHub repository and following the setup instructions in the README.

What AI clients work with Fastmail Mcp Server?

Fastmail Mcp Server is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is Fastmail Mcp Server actively maintained?

Fastmail Mcp Server is less actively maintained — last commit was 342 days ago. It has 9 GitHub stars.

🧪 Development

Available Scripts

npm run build      # Compile TypeScript
npm run watch      # Watch mode for development 
npm run dev        # Build and run server
npm run inspector  # Debug with MCP inspector

Testing

npm test           # Run test suite
npm run lint       # Code quality checks
npm audit          # Security vulnerability scan

🛡️ Security

Token-based Authentication - No password storage
Granular Permissions - Minimum required access scope
Environment Variables - Secure credential management
Audit Logging - Track all API interactions

🤝 Contributing

We welcome contributions! Please see our Contributing Guide for details.

Development Workflow

Fork the repository
Create a feature branch (git checkout -b feature/amazing-feature)
Commit your changes (git commit -m 'Add amazing feature')
Push to the branch (git push origin feature/amazing-feature)
Open a Pull Request

📈 Roadmap

Email Templates - Reusable email templates
Advanced Analytics - Email usage insights and reports ✅ COMPLETED v1.1.0
Multi-Account Support - Manage multiple Fastmail accounts
Webhook Support - Real-time email notifications
Plugin System - Extensible architecture for custom features
Threading Reliability - Fix intermittent reply functionality issues

📞 Support

Documentation - Comprehensive guides and API reference
Issues - Report bugs or request features on GitHub
Discussions - Community support and feature discussions

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

Fastmail - For their excellent JMAP API
Anthropic - For the MCP protocol and Claude integration
Community - For feedback, contributions, and support

⭐ If this project helped you, please give it a star on GitHub! ⭐

⚡ Get Started • 📚 Documentation • 🐛 Report Bug • 💡 Request Feature