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

8241entries
★ starsA–Z name

kicad-jlcpcb

17
@BeckhamLabsLLC

Claude Code plugin that turns a PCB idea into a wired .kicad_pcb ready for EasyEDA auto-routing and one-click JLCPCB ordering — LCSC part sourcing, EasyEDA pin-map auto-fetch, and session-persisted workflows.

updated Jun 2026

gemini-plugin-cc

17
@m-ghalib

Gemini plugin for Claude Code - reviews, and adversarial reviews to Google's Gemini CLI

updated May 2026

vanguard-frontier-agentic

17
@Raishin

Curated marketplace of AI skills, agents, and rules for cloud, zero-trust, and compliance-aware engineering - works with Claude Code, Codex, Cursor, Copilot, and more.

updated Jul 2026

cognitive-claude

17
@l0z4n0-a1

The meta-architecture behind a high-leverage Claude Code setup. Installed by the very tool it optimizes.

updated May 2026

fortune-skill

17
@ai-freer

Chinese traditional fortune-telling AI skill (BaZi 八字 + Zi Wei Dou Shu 紫微斗数) for Claude Code, Codex, Cursor, Trae and any agent platform. PolyForm Noncommercial.

updated Jul 2026

claude-review-all

17
@ncoevoet

Comprehensive multi-agent code review for Claude Code

updated Jul 2026

skill-everything

17
@sordi-ai

Git-versioned agent memory: agents that never make the same mistake twice. Anthropic-Skill folder standard, multi-runtime (Claude Code, Cursor, Gemini CLI, OpenCode).

updated Jul 2026

ibkr-trade-analyzer

17
@Esonhugh

Claude Code plugin: Analyze Interactive Brokers (IBKR) trading history — P&L, portfolio, fees, patterns, fx. Read-only Flex API access.

updated Jun 2026

pi-agent-go

17
@amit-timalsina

Minimal Go agent framework for LLM tool-calling loops (v1.0, stable). Typed tools, parallel execution, three hooks, streaming progress, snapshot resume, prompt caching across iterations. Anthropic Claude, OpenAI GPT-5, Google Gemini via pi-llm-go.

updated Jul 2026

memoforge

17
@gregmos

Multi-agent legal memo drafting plugin for Claude Cowork and Claude Code — intake, research, review, polished .docx output

updated Jun 2026

lanshu-wiki-skill

17
@cclank

LLM Wiki skill for Claude Code — Karpathy LLM Wiki pattern, batteries included

updated Jul 2026

ayrshare-social-media-api-claude-plugin

17
@ayrshare

The unified social media API for AI agents. Publish, schedule, and analyze across 13+ networks directly from Claude Code or CHatGPT, with powered by the Ayrshare API.

updated Jul 2026

ableton-extension-skill

17
@aker-dev

Claude Code skill for building Ableton Live extensions with @ableton-extensions/sdk — API & concept references, project templates, a with-skill vs baseline benchmark, and example extensions.

updated Jul 2026

permafrost

17
@jianzhichun

Freeze Claude Code's prompt prefix so DeepSeek's automatic cache always hits — alignment proxy + coalescing + keepalive, installable as a CC plugin. Measured 64% cheaper on real Claude Code traffic.

updated Jul 2026

smart-learn

17
@HYH926

Smart Learn - Claude Code interactive learning skill. Feynman Technique five-step pipeline: concept map + Feynman explanation + self-test + association + summary. Zero dependencies, real-time Word + Mermaid mindmap sync. Claude Code AI learning tool / study skill / knowledge management.

updated Jul 2026

production-audit

17
@apoorvjain25

Claude Code skill that audits your product until it stops finding things - then proves it. 24 lenses, 2 convergence loops, 0 hedging.

updated Jul 2026

remotion-director

17
@Zane-0x5a

A Claude Code plugin that designs and builds a finished motion piece from a one-line brief — via the 甲乙环 (critic-loop) pipeline, judged on its real rendered frames.

updated Jul 2026

design-from-code

17
@nlook-service

Design UI changes from real source code — verify data, iterate faithful HTML mockups, then delegate. A Claude Code plugin & Codex skill by nlook.me

updated Jul 2026

fables

17
@czlonkowski

Two Claude Code plugins for spending Claude Fable 5 tokens where they change the outcome: consult up (fable-advisor) and delegate down (fable-orchestrator).

updated Jul 2026

claude-ui-copilot

16
@superyhee

A React and Vite-based tool with an Express backend that converts text, screenshots, and Figma designs into clean, functional code powered by LLMs. It employs a conversational approach for continuous page effect adjustments. Now supports AWS Bedrock and Anthropic's Claude 3.5 Sonnet.

updated May 2026

claude-runner

16
@codingworkflow

Claude Runner vscode extension

updated Feb 2026

tiny-trae

16
@lldong

A minimal AI coding agent powered by Anthropic's Claude. Interactive terminal interface with tool execution. Visit https://lldong.github.io/tiny-trae for details.

updated Dec 2025

define-claude-code-hooks

16
@timoconnellaus
updated Jan 2026

cursor-and-claude-code-developer-toolkit

16
@mjaskolski

The Definitive Guide to Transforming Your AI-Based Software Development with Cursor and Claude Code

updated Jul 2026
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