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

8250entries
★ starsA–Z name

skill--chrome-extension-dev

1
@HartreeWorks

Claude Code skill for developing and testing Chrome extensions using Claude in Chrome MCP tools

updated Apr 2026

bio-research-lookup

1
@tetervak80-max

🔬 Claude Code skill — scientific paper search across PubMed, Semantic Scholar, ClinicalTrials.gov & bioRxiv. Medicine, biology, psychology, health.

updated May 2026

pinpoints

1
@M4T1SS3

VS Code extension to capture structured, DOM-aware UI context instead of screenshots

updated Apr 2026

claude-enterprise-skills

1
@anotherben

9-stage enterprise development pipeline for Claude Code. TDD, adversarial testing, mechanical verification. Any stack.

updated Mar 2026

chealth

1
@danielithomas

A Claude Code Health Check Skill based on best practice

updated Mar 2026

claude-pace

1
@o-shabashov

OpenClaw skill: 6-tier pace tracking for Anthropic API rate limits. Auto-throttle autonomous agents (subagents, coding loops) based on projected usage.

updated Mar 2026

agenthold

1
@edobusy

Shared versioned state for multi-agent AI workflows. An MCP server.

updated May 2026

Anthropics

1
@Dhruv18052003-web

Hands-on implementation of production-grade AI practices using the Anthropic Claude API, covering Prompt Engineering, RAG, and Tool Use

updated May 2026

toolpack-cli

1
@toolpack-ai

The intelligent command-line interface directly powering the Toolpack SDK

updated Apr 2026

mobile-device-mcp

1
@saranshbamania

MCP server for AI-powered mobile device control — 26 tools for screenshots, UI inspection, touch interaction, and AI visual analysis. Supports Anthropic Claude & Google Gemini.

updated Mar 2026

solutions-architecture-agent

1
@Modular-Earth-LLC

Orchestrates specialized skills through the complete solutions architecture lifecycle: ideation → requirements → architecture → team composition → cost. Designed for local Claude Code CLI and Anthropic cloud deployment.

updated Apr 2026

ascii-shader-tsx

1
@Codeptor

Agent skill for generating animated ASCII art, dithered visuals, and shader-like effects as React/TSX components. Works with Claude Code, Gemini CLI, Cursor, Windsurf, and any AI coding agent. 9 art styles, 8 dithering algorithms, procedural animation, CRT/glitch FX.

updated May 2026

venture-assessor-skill

1
@NayanKanaparthi

An Anthropic Claude Skill for evidence-first startup idea evaluation, market research, competitor mapping, beachhead market selection, BHM TAM sizing, validation design, and GTM hypothesis generation.

updated Mar 2026

claude-skills-guide-review

1
@shakyhand-ai

PDF → Markdown conversion & editorial review of Anthropic's official Claude Skills Guide. 12 OCR errors found and corrected. English + Hungarian.

updated Apr 2026

feishu-mcp-skill

1
@anilpixel
updated Mar 2026

openclaw-claude-code-skill

1
@reneexiaoxiao

完整的 Claude Code (ACP) 配置指南,让 OpenClaw 社区快速上手复杂编程任务。包含权限配置、故障排除和最佳实践。

updated Apr 2026

ai-edu-skills-FR

1
@imnotStealthy

Skills ChatGPT & Claude pour accompagner les étudiants dans leur rédaction académique et leurs révisions, du lycée au master, adapté aux normes françaises.

updated May 2026

development-story-report-skill

1
@fengwang

An agent skill to report the development story using Pryamid Principle

updated Apr 2026

x-open-source-algorithm-skill

1
@attainmentlabs

Score and optimize X/Twitter posts using the actual open source algorithm (xai-org/x-algorithm, Jan 2026). Built from the Phoenix scoring model, weighted scorer, and 19 engagement signal predictions.

updated May 2026

kiro-gateway-swift

1
@meitianwang

Kiro Gateway — proxy gateway for Kiro API with native macOS app. Use free Claude models with Claude Code, Cursor, Cline, and any OpenAI/Anthropic compatible tool.

updated Mar 2026

skills-drawer

1
@niharya

The skill shelf of Nihar Bhagat — a Claude Code plugin marketplace with three skills for designers, frontend devs, and job applicants.

updated May 2026

writing-style

1
@robertoecf

Claude Code skill for writing in specific author styles (Jack Butcher/VV, Anthropic, Morgan Housel)

updated Apr 2026

overnight-skill

1
@Twenseventeen

Claude Code skill — autonomous overnight codebase improvement. Scans, audits, and fixes hundreds of issues while you sleep.

updated Mar 2026

claude-model-fingerprint

1
@Hanoda88

Detect and verify genuine Claude models through introspective analysis to ensure API authenticity and reveal layered encapsulations.

updated Jun 2026
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