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

8165entries
★ starsA–Z name

WindownComputerUse

1
@JNX03

MCP server giving Claude (and other MCP clients) human-like control of Windows — virtual cursor, OCR, emergency stop, Electron manager. 64 tools.

updated May 2026

agent-skill-case-studies

1
@libaoming

Agent Skill 设计案例库 — 从已发布 skill 反推产品决策与工程范式,沉淀 AI-native API 设计法则。首个案例:微信读书 Skill 拆解。

updated May 2026

whats-next

1
@googlarz

Claude Code skill: persona-based strategic product analysis — 5 users, 3 recommendation layers, elevation moves

updated May 2026

cognitive-learning-canvas

1
@remi-huang

把硬核长内容拆成obsidian的思维导图 · 通用 AI 提示词框架(Claude/ChatGPT/Gemini)

updated May 2026

pubmed-reference-resolver

1
@hikataya01-netizen

PubMed reference resolver / 査読支援スキル (References → PubMed 逆引き + 統合監査レポート)

updated May 2026

squire

1
@PythonLuvr

General-purpose runtime for spawning CLI AI agents (Claude Code, Codex, Gemini CLI) as subprocesses with structured event streaming, MCP tool forwarding, and Claude Code permission auto-setup. MIT.

updated May 2026

llm-cache-proxy

1
@yubinkim444

Local SQLite cache for OpenAI and Anthropic API calls. One env var, 60-80% cheaper dev loops. Works with every existing tool.

updated May 2026

claudeTokens

1
@mmasias

Extensión Chrome para monitorear el uso semanal de tokens en Claude Code

updated May 2026

claude-finance-close-agent

1
@jtnoone

Multi-agent finance close assistant built with the Anthropic Claude API — analyst, researcher, writer, and critic agents with tool use, extended thinking, and an eval suite.

updated May 2026

plint

1
@DannyBruno

Static + runtime linter for LLM agent prompts, skills, and tool definitions. Model-aware policy for Claude, GPT, OpenRouter.

updated May 2026

xhs-note-reader

1
@teemoweng

把小红书图文笔记完整地读进 Claude Code 当上下文 — 标题 + 正文 + 全部图片 + 互动数据 + 评论区。一条链接就够。

updated May 2026

Claude-SCORM-Skill

1
@e-Fuse

A Claude Code skill that packages HTML eLearning modules into SCORM-compliant zips. Supports SCORM 1.2, 2004 2nd, 3rd, and 4th Edition. Drop it into your .claude/commands/ folder and run /package-scorm.

updated May 2026

account-risk-skill

1
@swaylq

反封号.skill — Claude Code / Anthropic / OpenAI account suspension risk detection, IP cleanliness scoring, compliance preflight, and appeal-packet skill. Compliance-only; no ban evasion.

updated May 2026

founders-playbook-ylf

1
@yaolifeng0629

AI-native startup founder playbook skill for Claude — based on Anthropic's The Founder's Playbook (2026)

updated May 2026

claude-code

1
@Pushpenderrathore

Anthropic-compatible proxy that routes Claude Code opus4.7/sonnet4.6 Haiku , the VS Code extension & JetBrains ACP to free or local model providers.

updated May 2026

full-audit-skill

1
@SpinaBuilds

Multi-agent code audit skill for Claude Code — Opus orchestrator + parallel Sonnet specialists + Haiku baseline. Modes: full, differential, targeted.

updated May 2026

claude-investigate-repo

1
@zcaceres

A Claude Code skill that audits third-party repos for malicious code, supply-chain risk, and dangerous patterns — before you install or run it.

updated May 2026

Claude-Code-on-WhatsApp

1
@ghanibot

Claude Code agent di WhatsApp + Telegram. Voice, vision, file analysis, RAG, multi-tool reasoning. Run di Termux Android. One-click installer.

updated May 2026

pi-routines

1
@Davidcreador

A pi extension that gives your agent scheduled and event-driven routines

updated May 2026

high-quality-slides

1
@andyqiu847-ai

A Claude Code skill that produces presentations worth sending — research-first, narrative-driven 5-phase workflow inspired by Genspark AI Slides.

updated May 2026

cc-research

1
@richer-richard

Multi-agent deep research on Claude models: a Claude Code plugin + Agent SDK CLI sharing one source of truth. Orchestrator -> parallel researcher subagents -> triangulate -> synthesize -> cite -> report. Built-in tools only; OAuth subscription or API key; self-hosted plugin marketplace.

updated May 2026

url-triage-agent

1
@Abdulla-AlBassam

Autonomous AI agent that triages URLs for phishing and malware: a barefoot Anthropic tool-use loop driving 10 classical analysis tools plus a hardened Docker browser sandbox.

updated May 2026

rashedul-agentic-engineering

1
@Rijul1204

My agentic-engineering workbench — Claude Code skills, subagents, and CI workflows I reuse across projects.

updated May 2026

claude-code-handbook

1
@TheMiryon

The Claude Code handbook you actually finish. Bilingual (EN/FR), free. Hooks, sub-agents, skills, plan-first dev, audit loop. For developers and knowledge workers.

updated May 2026
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