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

8253entries
★ starsA–Z name

agent-harness

3
@zjh08177

Agent Harness Engineering: hooks, memory & meta-skills for Claude Code. Turn suggestions into laws, give agents persistent memory, encode workflows as one-click skills.

updated Apr 2026

ward

3
@Battle-Creek-LLC

Claude Code hook CLI — PII guard, leak detection, event logging

updated May 2026

claude-security-audit

3
@tdccccc

A Claude Code skill that audits your configuration for malicious hooks, MCP servers, and suspicious commands

updated May 2026

claw-plus-plus

3
@bryhuang9

⚡ High-performance AI coding agent for the terminal, built in modern C++23. Multi-provider LLM support (Anthropic, OpenAI, Ollama), 9 built-in tools, interactive REPL, and session persistence.

updated Apr 2026

bilibili-audio-skill

3
@shuolsure

🎵 B站视频音频下载神器!支持单个视频和批量UP主下载,集成 Claude Code Skill 一键调用。自动选择最高音质、断点续传、防封禁设计。

updated Jun 2026

claude-forge

3
@codebysantosh-eng

Development system for Claude Code — agents, commands, hooks, skills, and rules

updated Apr 2026

eu-ai-act-mcp

3
@lexbeam-software

Open-source MCP server giving AI agents 9 deterministic tools for the EU AI Act (Regulation 2024/1689). No LLM in the loop.

updated May 2026

Session-Tracker

3
@El-Bach

A Claude skill that tracks token usage and context window memory in real time — no API needed. Know when your 5-hour session budget is running low before Claude cuts you off.

updated Jun 2026

xforge

3
@cryptoxinu

Forge battle-tested CLAUDE.md files that actually get followed. Audit, score, and generate CLAUDE.md with anti-slop rules, plan enforcement, and verification gates.

updated Apr 2026

Chimera

3
@TNLegend

Project Chimera is a high-performance API proxy that lets you use Google Gemini (via web cookies) as a free backend for Anthropic's claude-code CLI. It translates Claude's XML tool calls into native Gemini actions, using a custom "Delta Slicer" to bypass Google's strict prompt filters and enable full local terminal automation.

updated May 2026

studiomeyer-memory

3
@studiomeyer-io

AI memory server with 56 tools. Knowledge Graph, semantic search, session tracking, multi-agent support. Free tier available.

updated May 2026

campfire-analyst

3
@subodhkolhe

Your portfolio is a fingerprint, Campfire Analyst reads it. Claude skill for Zerodha users.

updated May 2026

claude-moon-close

3
@tokumccree

A visual closing ceremony for Claude Code sessions — moon phase ASCII art + personality-matched haiku

updated May 2026

ads-cite

3
@gnarayan

NASA ADS skill for Claude Code: search, export verbatim bibtex, resolve arXiv/DOI, list citing papers

updated May 2026

writer-skill

3
@zdyya

Writer skill for Claude Code: from idea to publish-ready article with multi-role review

updated May 2026

Hookbridge

3
@REPOZY

One file. Every platform. Compile a universal plugin schema into native hook files for Claude Code and Codex.

updated Apr 2026

newsroom-extension

3
@ehurrn

AI investigative journalism toolkit — OSINT, FOIA engineering, corporate veil piercing, libel defense, and editorial workflow. 15 skills for Claude Desktop, Claude Code, and Gemini CLI. Built to empower, not replace, human journalism.

updated May 2026

oconnell-collaborative-claude-code

3
@steveofconnell

Collaborative Claude Code configuration for academic research in economics — rules, hooks, skills, and session protocols

updated May 2026

uthere

3
@odfalik

Camera-based user presence detection. MCP server & Claude Code hook

updated Apr 2026

claude_code_setup

3
@arnabdeypolimi

Portable Claude Code configuration kit for AI engineers — skills, agents, workflows, and plugins for ML and research projects. One npx command bootstraps a new repo.

updated May 2026

stingy

3
@capitalthought

Token efficiency toolkit for Claude Code — budget tracking, burn rate monitoring, waste auditing, cost comparison, and auto-guard hooks. Save money on AI coding. Created by the Pitch to Prototype class at the University of Texas at Austin.

updated Jun 2026

claude-cost-tracker

3
@mrgn-d

Hook-based usage tracking and expense reporting for Claude Code CLI

updated Apr 2026

claude-context-intelligence-layer

3
@rare-lab-core

The most advanced context management system for Claude Code. 3-layer auto-injection hooks, 47-skill Cognitive Mesh, persistent memory system, and a voice-to-text prompt rewrite protocol. Your Claude remembers everything, loads the right skills automatically, and never repeats past mistakes.

updated Apr 2026

cera-reasoning-harness

3
@miketepUR

A reasoning harness for human-AI collaboration. Preserves what's understood, not just what's said. Open-source skill for Claude Projects. Patent pending.

updated Apr 2026
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