mcp-golang

mcp-golang is an open-source, type-safe Golang framework for building Model Context Protocol (MCP) servers and clients with comprehensive protocol implementation and validation.

Features

• Type Safety: Define tool arguments as native Go structs. The framework handles schema generation, deserialization, and error handling automatically.
• Low Boilerplate: Generates all MCP endpoints for tools, prompts, and resources, minimizing the amount of code required to set up a server or client.
• Custom Transports:
  • Built-in support for stdio (full feature support, including bidirectional communication and notifications)
  • HTTP (stateless communication; does not support bidirectional features)
  • Gin HTTP transport for integration with the Gin framework
  • Experimental custom transport and HTTPS with custom authentication support (in progress)
• Modular Design: The library is split into three components (transport, protocol, server/client). Use all or just the ones you need.
• Bi-directional Support: Full support for both server and client implementations using stdio transport.
• Automatic Endpoint Generation: Programmatically generates endpoints for tools, prompts, and resources.
• Notifications & Pagination: Planned support for change notifications and pagination for tools, prompts, and resources.
• Client Features:
  • Call tools, prompts, and resources
  • List tools, prompts, and resources
• Extensive Examples: Provides examples for server and client implementations, including HTTP, Gin, and stdio transports.
• Integration: Example integration with Claude Desktop.
• Open Source: Licensed under MIT, with contributions welcome.

Usage Examples

• Server Setup: Minimal code required to register tools, prompts, and resources.
• HTTP/Gin Support: Easily create stateless MCP servers using HTTP or Gin framework.
• Client Usage: Call tools and process responses using type-safe arguments.

Pricing

mcp-golang is open source and released under the MIT license. There are no associated costs.

Links

• Source Code & Documentation
• Project Website & Docs

Tags

golang, framework, mcp, open-source