The official Rust SDK for the Model Context Protocol

The official Python SDK for Model Context Protocol servers and clients

The official TypeScript SDK for Model Context Protocol servers and clients

Official monorepo of SDKs, CLI, and MCP servers for Sendmux email APIs across TypeScript, Python, Go, PHP, Rust, and Ruby.

The official Go SDK for Model Context Protocol servers and clients. Maintained in collaboration with Google.

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

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

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

A full featured, enterprise grade rust MCP SDK

Pixiv, in your terminal — a CLI, MCP server, and Go SDK for discovery, accounts, creators, collections, and downloads.

Skills, MCP servers, Custom Agents, Agents.md for SDKs to ground Coding Agents

Markdown and OFM SDK w/ MCP server that transforms your Obsidian vault into an intelligent knowledge system

Host-agnostic bridge connecting Claude Code SDK to IM platforms (Telegram, Discord, Feishu)

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.

Open Source A2A Protocol Adapter SDK for Different Agent Frameworks and Harnesses

A Model Context Protocol (MCP) server for the Readwise Reader API, built with TypeScript and the official Claude SDK.

On-demand design systems from any URL. Five surfaces, one agent: web, API, CLI, TypeScript SDK, and a portable agent skill that runs inside Claude Code, Codex, and Cursor.

Learn Agentic AI using Dapr Agentic Cloud Ascent (DACA) Design Pattern and Agent-Native Cloud Technologies: OpenAI Agents SDK, Memory, MCP, A2A, Knowledge Graphs, Dapr, Rancher Desktop, and Kubernetes.

A single hub to find Claude Skills, Agents, Commands, Hooks, Plugins, and Marketplace collections to extend Claude Code, Claude Desktop, Agent SDK and OpenClaw

ffprobe for documents — probe PDF, Microsoft Office, and Apple iWork files without opening them. Rust CLI + browser WASM SDK returning structured JSON with confidence, evidence, and measured I/O cost.

Everything Anthropic ships for builders, archived and updated 4× daily. 3,900+ files. 12 sources. API, Claude Code, MCP, docs, cookbooks, skills, plugins.

MCP server, CLI, and agent skills for Pipefy.

a lib to build MCP clients and MCP servers in Clojure(script)

Qt C++ library for working with AI/LLM Providers and MCP