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

agent-tutor-skill

1
@Bhala-Srinivash

Cognitive science AI tutor skill for Claude Code — teaching loop, FSRS spaced repetition, zero-hint quizzes, concept-level mastery tracking

updated May 2026

awesome-claude-skills

1
@mingrath

A curated list of awesome Claude Code skills for development, data analysis, DevOps, AI/ML, business, and more

updated Mar 2026

claude-blog-skill

1
@wklyu712-dev

Daily Anthropic/Claude blog tracker skill for OpenClaw - auto-fetches news, research & product updates via Sanity CMS API

updated Mar 2026

Copilot-Skill-Bridge

1
@MarcelRoozekrans

VS Code extension that bridges Claude Code marketplace skills into GitHub Copilot — discovers, converts, and imports skills with smart compatibility analysis

updated May 2026

elite-claude-playbook

1
@bakabaka91

Skills, commands, hooks, audit system, and CLAUDE.md templates for Claude Code power users.

updated Mar 2026

databridge-d365

1
@YashPatel45

AI-assisted data migration mapping tool for Microsoft Dynamics 365 - parse legacy schemas, auto-map fields with Claude AI, manage SME approvals, and export STTM documents as PDF, Excel, JSON, or Python scripts.

updated Apr 2026

agent-team

1
@xiuxiubiu

Claude Code skill for planning and coordinating native Agent Teams — parallel execution, specialist roles, and adversarial review

updated Mar 2026

test-management

1
@1percrnt365

Claude Code skill: systematic test file management strategy for any project (Python/Rust/JS/TS)

updated Mar 2026

AI-Product-Claude-marketplace

1
@DorianErkens

My PM toolkit as a Claude Code plugin — GIST/ICE frameworks, experiment tracking, product archaeology. 5 skills, 3 real-world PRD examples.

updated Apr 2026

youtube-watchlater-mcp

1
@tulaman

MCP server for fetching your YouTube Watch Later playlist via yt-dlp

updated Mar 2026

clawphunks

1
@jefdiesel

10,000 pixel punk NFTs for AI agents. Mint with x402 on Base, trade on Ethereum L1.

updated Mar 2026

nano-banana-2-skill

1
@vfxengine

Claude Code skill for AI image generation with Nano Banana 2 (Gemini 3.1 Flash Image) -- by VFX Engine

updated Apr 2026

openclaw-crypto-ai

1
@0xblinks-tech

🦞 OpenClaw AI crypto assistant — Claude Skill for Binance ecosystem

updated Mar 2026

markdown-to-image-cards

1
@bluemomo112

🎨 Convert Markdown to beautiful image cards | 将 Markdown 转换为精美图片卡片 | Claude Code Skill

updated May 2026

java-jacoco-coverage-backfill

1
@changheng10000

Universal Codex and Claude Code skill for Java JaCoCo coverage backfill with branch-first analysis, scriptable workflows, and snapshot diffing for Maven and Gradle projects.

updated Mar 2026

claude-mirror

1
@alessiobravi

Mirror your project files across machines and cloud backends — Google Drive, Dropbox, OneDrive, WebDAV — with multi-cloud redundancy, time-travel disaster recovery, and real-time collaboration signals.

updated May 2026

mango

1
@jj-valentine

Daily email digest aggregator; self-hosted tool using Claude AI to summarise YouTube, RSS feeds & APIs.

updated May 2026

ui-ux-reviewer

1
@galaxy4276

Claude Code plugin that analyzes UI/UX quality against NNg 10 Heuristics, Laws of UX, Apple HIG, and WCAG — with severity-ranked issues and actionable fixes.

updated Mar 2026

PiApp

1
@rpsandy

Explore AI coding with PiApp, a macOS/iOS tool to chat with Claude, manage files, and use a terminal emulator via PiSwift and Anthropic API.

updated Jun 2026

claude-guard

1
@mooalot

VS Code extension to visualize and manage Claude Code deny rules. See protected files at a glance and add/remove permissions via right-click.

updated Mar 2026

llm-prettier

1
@amaruki

A zero-dependency CLI tool to prettify JSON into a beautiful, interactive, and searchable HTML viewer. Built to easily parse embedded LLM payloads.

updated Mar 2026

google-ads-claudecodeskill

1
@itallstartedwithaidea

A Claude Code skill + MCP server setup for expert-level Google Ads campaign analysis

updated May 2026

claude-imagine

1
@prenats

MCP server for generating images in Claude Code — supports local image generation tools like ComfyUI and other backends

updated Apr 2026

jim-devel-principe

1
@jimed-rand

Jim Development Principe, the principal for skill on Claude (also structured, three-phase agentic development pipeline skill for Claude).

updated Mar 2026
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