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

8281entries
★ starsA–Z name

skill-manager

★ 4
@landn172

Skill Manager. All your AI Agent skills in one place. 🧠 The ultimate management dashboard for Anthropic, Claude, and beyond. Fast. Secure. Open Source.

updated Jul 2026

XCoding

★ 4
@Book-Maker

💻 Build and manage multiple coding projects seamlessly with XCoding, a lightweight IDE designed for focus and efficiency.

updated Oct 2026

claude-plugins-validation

★ 4
@Emasoft

Comprehensive validation suite for Claude Code plugins, marketplaces, hooks, skills, and MCP servers

updated Sep 2026

aimaestro-slack-bridge

★ 4
@23blocks-OS

Connect Slack to your Claude Code agents - Zero API costs, full context retention, custom skills & hooks. Unlike official Claude for Slack, we connect to your RUNNING agents.

updated Sep 2026

structured-prompt-skill

★ 4
@Marwane83930

✍️ Write effective AI prompts with this structured prompt engineering library and Claude Code skill, featuring 300+ curated examples for high-quality results.

updated Oct 2026

guardrails

★ 4
@thkt

Code quality checker for Claude Code PreToolCall hook (biome + custom rules)

updated Aug 2026

permission-hook

★ 4
@tantk

Fast permission hook for Claude Code and other AI coding assistants

updated Sep 2026

ynab-mcp

★ 4
@auzroz

A comprehensive MCP server for YNAB with 55+ tools covering the full API plus advanced analytics—spending trends, subscription detection, budget health scores, and savings recommendations. Works with Claude Desktop and other MCP-compatible AI assistants.

updated Oct 2026

molecare-mcp

★ 4
@MoleCare

MCP server for educational dermatology knowledge, MoleCare API tools, and MLOps operations tooling. Runs in mock mode with no credentials. Not a medical device.

updated Oct 2026

claude-code-nova

★ 4
@PascalPixel

Claude Code AI assistant extension for Panic Nova editor

updated Aug 2026

agntree

★ 4
@subhashkhileri

VS Code & Cursor extension to manage AI coding agent sessions across git repositories and worktrees. Fork sessions, track changes, run quick actions. Supports Claude Code — extensible for other agents.

updated Jun 2026

claude-lens

★ 4
@radumardale

TUI for managing Claude Code plugins, MCP servers, agents, skills, and commands

updated Aug 2026

requirements-engineering-skill

★ 4
@SwiftyJourney

Turn vague requirements into testable specs: BDD narratives, use cases, payload contracts, flowcharts, and dependency diagrams - Agent Skill

updated Sep 2026

agentpatterns

★ 4
@ericjohnolson

Claude Code tool kit of skills, hooks, and MCP servers to steer agent generated code towards beautiful code patterns and practices.

updated Feb 2026

notebook-hot-reload

★ 4
@kdkyum

VS Code extension that auto-reloads Jupyter notebooks when .ipynb files change on disk. Essential for MCP server workflows with Claude Code, Cursor, and other AI agents.

updated Apr 2026

railgun

★ 4
@douglance

Security hook for Claude Code - protects against secrets leakage, dangerous commands, and data exfiltration

updated Apr 2026

X-bookmark-research

★ 4
@matthewod11-stack

Claude Code extension that transforms Twitter/X bookmarks into structured research notes

updated Mar 2026

one-page-strategy

★ 4
@olgasafonova

Claude Code skill for writing strategy documents using the One Page Strategy framework (Facts, Problem, Idea, Solution)

updated Aug 2026

claude-code-notification

★ 4
@DurianPancake

a diy notification tool for claude code cli by hook

updated May 2026

solo-founder-team

★ 4
@fcojaviergon

SDLC Kit for Claude Code — Skills, Agents, Hooks for solo founders

updated Mar 2026

skills

★ 4
@deepread-tech

Teach any AI agent how to use the DeepRead OCR, Form Fill, PII Redaction, and BYOK APIs. Claude Code, Codex, ChatGPT skills.

updated Oct 2026

claude-code-bridge

★ 4
@Sabrealfred

MCP bridge connecting Claude Desktop, Claude Code CLI, and Chrome Extension. Skills, hooks, autonomous dev loops, and inter-agent communication.

updated Sep 2026

claude-memory-skill

★ 4
@SomeStay07

Persistent project memory for Claude Code. One .md file — learns from corrections, catches contradictions, cleans up duplicates. /memory update | prune | reflect | status. Zero dependencies.

updated Jul 2026

ai-intelligence-hub

★ 4
@ytrofr

AI Intelligence Hub - Track 14 AI sources (GitHub, HuggingFace, MCP, Claude Code, Anthropic Skills & Cookbooks) with full-text search and keyword scoring. Port 4444.

updated Oct 2026
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