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

claude-flet-plugin

★ 3
@brunobrown

A Claude Code plugin that provides expert knowledge for building Python apps and extensions with the framework.

updated Aug 2026

claude-skill-architect

★ 3
@llh315434220

Build high-quality Claude Skills following Anthropic official best practices.

updated Mar 2026

claude-context-vault

★ 3
@akindejuh

Context vault extension for Claude Code — archive, retrieve, and manage conversation context

updated Mar 2026

claude-usage-bar

★ 3
@Harsh1210

VS Code extension that shows your Claude Code rate limit usage in the status bar. Tracks 5-hour session and weekly limits with live progress bars, color alerts, and reset countdowns via passive diagnostics_channel interception — zero extra API calls.

updated Oct 2026

threshpad

★ 3
@looselyhuman

Gnome extension for batctl for Thinkpads (Dual-battery support)

updated Oct 2026

claude-plugins

★ 3
@debytesio

Claude Code plugin marketplace by DeBytes — AI-powered tools for productivity

updated Apr 2026

skill--chrome-extension-dev

★ 3
@HartreeWorks

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

updated Sep 2026

ai-shield

★ 3
@studiomeyer-io

LLM security toolkit — prompt injection detection, PII masking, cost tracking, and tool policies. Zero dependencies. <25ms scans.

updated Sep 2026

ticktick-mcp

★ 3
@abdulhamid-n

Turn Claude into your AI task manager. Create, manage & complete TickTick tasks just by talking — official OAuth API, local, private.

updated Aug 2026

claude-skill-karting

★ 3
@sangee06

Claude AI skill — personal karting coach for young Rotax racers. Telemetry analysis, MyChron dashboards, setup advice, Rotax regulations. Ages 7-14. EN/PT.

updated Jun 2026

webmcp-tool-inspector-with-claude

★ 3
@tomohiro-owada

[PoC] WebMCP + Claude Code bridge - Chrome extension & Go server for testing WebMCP tool interaction with natural language

updated Sep 2026

serverless_proxy

★ 3
@TyRoden

A highly compatible proxy bridge with translation for API requests to multiple backend providers (OpenAI-Oauth, RunPod, Ollama,,etc.). Configure endpoints through a web admin UI and map virtual model names to actual backend models. Create API keys to share and monitor usage and costs by tools / teams. Opencode/Claude to queue servers too.

updated Jul 2026

unofficial-webflow-mast-skill

★ 3
@fernandocomet

A Claude skill for Webflow projects built on the Mast Framework

updated Jun 2026

muse-tts-embed

★ 3
@falcoschaefer99-eng

Persistent audio player embedded in Claude's chat. 54 voices, voice cloning, play/pause/seek/download. Fully local.

updated Sep 2026

claude-adapt

★ 3
@kimbelas

Claude Code configuration tool. Score your codebase, generate optimized CLAUDE.md, install skill packs, and keep config evolving. Works on any repo.

updated May 2026

diffchestrator

★ 3
@Andrevops

VS Code extension for multi-repo Git orchestration — built as a companion to Claude Code. Stage, review, diff, and commit across dozens of repos from one sidebar.

updated Jun 2026

claude-skills

★ 3
@yachi

Production-grade Claude Code skills, auto-research validated. Includes /deep-research with 89-run benchmark.

updated Oct 2026

knowledge-os

★ 3
@coderphonui

Your second brain on plain Markdown. Capture articles, videos & ideas. Query by meaning with local semantic search. 15+ AI skills for brainstorming, weekly reviews, slide decks, and more — all running in VS Code with Claude Code / Github Copilot extension.

updated May 2026

claude-skills

★ 3
@MakiDevelop

Reusable skill packs for Claude Code CLI — 14 ready-to-use skills for data analysis, image generation, career tools, and more.

updated Sep 2026

ucp-client

★ 3
@IntegrationMaestro

Capability-aware TypeScript client for any UCP-compliant server — gives AI agents only the tools their connected server supports

updated May 2026

j-rig-skill-binary-eval

★ 3
@jeremylongshore

Binary-criteria evaluation harness for Claude skills with planned extension to plugins, agents, and MCP servers. Score every change yes/no across 7 layers — package integrity, trigger quality, functional quality, regression protection, baseline value, model variance, rollout safety. Never gradients.

updated Oct 2026

maxs-claude-skills

★ 3
@whateverforever

Some Skills for Claudius

updated Jul 2026

claude-plugin-marketplace

★ 3
@barnburner121

The largest Claude Code plugin marketplace. 500 plugins, 600+ developer tools in one MCP server. Security, testing, DevOps, databases, frontend, backend, ML/AI, mobile, cloud, and more.

updated Jun 2026

alpha-style

★ 3
@PSkinnerTech

AI design skill suite for coding agents (Cursor, Claude Code, Codex, Gemini) — encodes Alpha School's production design language into multi-provider skill bundles. Built on Anthropic's frontend-design.

updated Jul 2026
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