Open-Source Directory — Claude / Anthropic

Claude
Tools

A curated index of extensions, plugins, MCP servers, hooks, and integrations for Claude — discovered from GitHub and refreshed daily.

Repository Growth — Last 30 Days

8236entries
★ starsA–Z name

mcp-fiscal-brasil

127
@DeHor-Labs

Servidor MCP fiscal brasileiro: CNPJ, NF-e, NFS-e, CT-e, SPED, eSocial, Simples Nacional, Reforma 2026. 44 tools, zero-cadastro, tabelas offline. Python.

updated Jul 2026

IntelliConnect

126
@ruanrongman

本项目为xiaozhi-esp32提供后端服务 | A Powerful AI agent IoT platform core.

updated Jul 2026

AgentUp

126
@nolabs-ai

Portable , scalable , secure AI Agents

updated Jul 2026

swiftlens

126
@swiftlens

SwiftLens is a Model Context Protocol (MCP) server that provides deep, semantic-level analysis of Swift codebases to any AI models. By integrating directly with Apple's SourceKit-LSP, SwiftLens enables AI models to understand Swift code with compiler-grade accuracy.

updated Jul 2026

adeu

126
@dealfluence

docx ↔ LLM translator. Projects .docx to Markdown for editing. Projects edits back to OOXML as tracked changes. Python and Node.js implementations.

updated Jul 2026

chatgpt2localbridge

126
@Harzva

Codex/ChatGPT plugin app and OAuth MCP connector for approved local workspaces.

updated Jul 2026

ruby-nano-bots

125
@icebaker

Ruby Implementation of Nano Bots: small, AI-powered bots that can be easily shared as a single file, designed to support multiple providers such as Anthropic Claude, Cohere Command, Google Gemini, Maritaca AI, Mistral AI, Ollama, OpenAI ChatGPT, and others, with support for calling tools (functions).

updated Jul 2026

STAMP

125
@KatherLab

Solid Tumor Associative Modeling in Pathology

updated Jul 2026

godoc-mcp

125
@mrjoshuak

MCP server that reduces LLM context usage when AI coding agents work with Go — structured documentation instead of source-file dumps.

updated Jul 2026

server-google-news

125
@ChanMeng666

【Star-crossed coders unite!⭐️】Model Context Protocol (MCP) server implementation providing Google News search capabilities via SerpAPI, with automatic news categorization and multi-language support.

updated Jul 2026

mcp-client-server

125
@willccbb

An MCP Server that's also an MCP Client. Useful for letting Claude develop and test MCPs without needing to reset the application.

updated Jun 2026

claude-code-mcp-enhanced

125
@grahama1970

Enhanced Claude Code MCP server with orchestration capabilities, reliability improvements, and self-contained execution patterns

updated Jul 2026

augments-mcp-server

125
@augmnt

Comprehensive MCP server providing real-time framework documentation access for Claude Code with intelligent caching, multi-source integration, and context-aware assistance.

updated Jul 2026

mcp-hosted

125
@forcedotcom

Salesforce Hosted MCP Servers

updated Jul 2026

prompt-engineering-skills

125
@treylom

Comprehensive AI prompt engineering skills for Claude Code, ChatGPT (GPTs & Codex CLI plugin), and Gemini Gems. Model-specific patterns for Claude Fable 5 / Opus 4.8, GPT-5.6 Sol (5.5/5.4 legacy), Gemini 3.1, Veo 3.1, Nano Banana 2, and gpt-image-2.

updated Jul 2026

editor-mcp-server

124
@playcanvas

MCP Server for AI automation of the PlayCanvas Editor

updated Jul 2026

api-mcp-server

124
@hostinger
updated Jul 2026

mcp-in-action

124
@huangjia2019

极客时间MCP新课已经上线!超2000同学一起开启MCP学习之旅!

updated Jul 2026

fastmail-mcp

124
@MadLlama25

A Model Context Protocol (MCP) server that provides access to the Fastmail API, enabling AI assistants to interact with email, contacts, and calendar data. Includes a DXT (desktop extension) for Claude Desktop.

updated Jul 2026

embedded-debugger-mcp

124
@Adancurusul

MCP server + CLI + Codex/Claude skill for embedded debugging via probe-rs or OpenOCD — ARM Cortex-M, RISC-V, and Xtensa (ESP32), with AI crash diagnosis

updated Jul 2026

godot-mcp

124
@satelliteoflove

Give your AI assistant eyes and hands in the Godot editor: scene editing, input injection, deterministic playtesting, and live game state for agents

updated Jul 2026

epistemic-protocols

124
@jongwony

Epistemic protocols for Claude Code — structure human-AI interaction quality at every decision point - https://epistemic-protocols.com

updated Jul 2026

flompt

124
@Nyrok

flow + prompt = flompt - Visual AI Prompt Builder. Decompose, edit as flowchart, recompile into optimized machine-readable prompts

updated Jul 2026

mazzap

124
@zymazza

Mazzap, part of the Mazzstack: essentials for the Singularity Slowlife

updated Jul 2026
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