The official TypeScript SDK for Model Context Protocol servers and clients

The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.

The official Python SDK for Model Context Protocol servers and clients

The official Java SDK for Model Context Protocol servers and clients. Maintained in collaboration with Spring AI

The official Rust SDK for the Model Context Protocol

The official PHP SDK for Model Context Protocol servers and clients. Maintained in collaboration with The PHP Foundation.

The official Ruby SDK for the Model Context Protocol servers and clients.

Cortex - Generates interactive API documentation, typed SDKs, and MCP servers from OpenAPI, AsyncAPI, GraphQL, gRPC, OpenRPC, and Markdown.

Create AI Agents in a No-Code Visual Builder or TypeScript SDK with full 2-way sync. For shipping AI assistants and multi-agent AI workflows.

Mimi Seed MCP server — Firebase + AdMob + Google Play + App Store management for Claude Code / Codex / Cursor / any MCP client.

🚀 Universal SDK for building next-gen MCP servers

Public MCP server for the TokPortal API.

Skybridge is a full-stack TypeScript framework for MCP Apps and ChatGPT Apps. Type-safe. React-powered. Platform-agnostic.

The fullstack MCP framework to develop MCP Apps for ChatGPT / Claude & MCP Servers for AI Agents.

Testing and evaluation platform to chat, inspect, and debug MCP servers, MCP apps, and ChatGPT apps.

Official Infisical MCP Server

🚀 Apache RocketMQ built in Rust 🦀 — faster, safer, and more memory-efficient. Powering high-performance messaging for the AI era, with AI Agent, MCP, and AI-SRE capabilities.

🧠 RepoBrain (formerly Antigravity) — Give your repo a brain. ChatGPT for your codebase: works in Claude Code, Cursor, Codex, Windsurf & more.

MCP Server Framework and Tool Development library for building custom capabilities into agents.

A real design engine for your AI agent: generate designs and print-ready PDFs, over MCP.

🌋 Build AI agents that seamlessly combine LLM reasoning with real-world actions via MCP tools — in just a few lines of TypeScript.

MCPSharp is a .NET library that helps you build Model Context Protocol (MCP) servers and clients - the standardized API protocol used by AI assistants and models.

Unbrowse — api native browser Skill/CLI/MCP/SDK for any agent. Auto-discovers APIs from browser traffic, generates skills on the fly to call APIs directly 100x faster, 80% cheaper locally.

GeneXus 16, GeneXus 17, GeneXus 18 MCP server with native SDK support; basic legacy compatibility for GeneXus Evolution 3, GeneXus Evolution 2, GeneXus Evolution 1, GeneXus 15, GeneXus 9.0, GeneXus 8.0 via com-gxpublic and dotnet-reflection drivers — read