This repository is a curated list of developer tools, SDKs, libraries, and testing utilities for Model Context Protocol (MCP) server development. It serves as a comprehensive resource for developers building or integrating with MCP servers across various programming languages and frameworks.

How It Works

The list categorizes resources by programming language (JavaScript/TypeScript, Python, Java, Go, Rust, Kotlin, C#/.NET, Scala, Dart, Ruby, C/C++, Swift), frameworks, testing tools, authorization utilities, and general development tools. Resources are primarily ordered by GitHub stars, with specific naming conventions for monorepo projects.

Quick Start & Requirements

This is a curated list, not a runnable project. Specific installation and usage instructions depend on the individual tools and SDKs listed. Links to official documentation, demos, and community resources are provided for many entries.

Highlighted Details

• Extensive language support, including official SDKs for Ruby and Swift.
• Dedicated sections for testing tools, authorization utilities, proxies, and gateways.
• Includes frameworks for building agents and integrating with existing systems like LangChain and FastAPI.
• Features development tools for local interaction logging, hot-reloading, and automated testing.

Maintenance & Community

The list is maintained by punkpeye and includes links to a Reddit community (r/mcp) and a Discord server for discussion and support.

Licensing & Compatibility

Licenses vary per listed tool; users must check individual project licenses. Many entries appear to be MIT or Apache licensed, suggesting broad compatibility for commercial and closed-source use, but this requires verification for each specific tool.

Limitations & Caveats

As a curated list, the quality and maintenance status of individual tools vary. Popularity-based ordering may not always reflect the best or most stable solution. Some entries are templates or examples rather than fully developed libraries.