Official Java SDK for implementing custom MCP Servers, providing all necessary interfaces and annotations such as @Tool for registering server-side tools with MCP hosts.

Java-based tools for building MCP servers with Quarkus, including SDKs and extensions for annotation-driven development and enterprise integration. (Merged 'Quarkus MCP Server SDK Java' and 'Quarkus MCP Extension')

http4k MCP SDK provides a functional, testable Kotlin framework with HTTP Streaming protocol support for building MCP servers and clients.

mcp-go is a comprehensive Golang SDK for building both MCP Servers and Clients, supporting robust protocol implementation.

The MCP Python SDK provides the necessary tools and libraries for building MCP servers in Python. It offers convenient abstractions and utilities to implement custom MCP servers, making it a core resource for anyone developing awesome MCP servers.

A foundational Java implementation of the Model Context Protocol (MCP) server, providing server-side protocol operations, resource and tool management, structured logging, and flexible synchronous/asynchronous APIs for MCP architectures. Highly relevant for building and running Awesome MCP Servers.