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

Hooks-Claude-Code

2
@BenBktech
updated May 2026

sellercloud-mcp

2
@ThynksoLab

MCP server for Sellercloud REST API and legacy web — 73 tools for Claude Desktop and other MCP clients

updated May 2026

ibkr-options-assistant

2
@AlexLiu0130

AI-powered options trading assistant for Interactive Brokers. Real-time Greeks, McMillan/Overby strategy library, wheel tracking, P&L analytics, earnings warnings. Plug-and-play Claude Code skill.

updated May 2026

claude-hooks

2
@ivyleavedtoadflax

Personal Claude Code hooks.

updated Jun 2026

mirador

2
@danielmedinac22

Publish AI-generated HTML to your own Vercel — a Claude Code skill + setup wizard.

updated Jun 2026

PPTWork

2
@JunfengRan

PPTWork has two portable Anthropic-style Skills for AI agents to plan, author, and export PowerPoint decks. Both work in OpenCode, Claude Code, Cursor, Codex, or any other host that honors the SKILL.md frontmatter convention.

updated May 2026

occupancy-insights-skill

2
@occuspace

Free, vendor-neutral skill that turns occupancy and presence data into a decision-ready report. Works with Claude, ChatGPT, Gemini, and other LLMs.

updated May 2026

compbio-pi-skill

2
@chenly255

A method-driven computational biology PI persona for Claude Code — stops asking, starts deciding. Targets Nature sub-journals.

updated May 2026

ai-collab-bridge

2
@owgit

A peer-review protocol for AI models. Claude, Codex, Gemini and others review each other's code via CLI handoffs. Bidirectional, symmetric, opensource.

updated May 2026

design-review-skill

2
@AslanMazhidov

A Claude Code skill that turns Claude into a design reviewer that SEES your page. Uses Playwright MCP to capture desktop/tablet/mobile screenshots, audit typography, contrast, rhythm, hierarchy — and propose concrete CSS fixes. Bilingual EN/RU.

updated May 2026

claude-code-mini

2
@zyziyun

Async Python implementation of the Claude Code agent harness — real Bash/Read/Glob/Grep tools, three-tier caching, multi-stage compaction, allow/ask/deny permissions, Pre/PostToolUse hooks, slash commands, subagent isolation. OpenAI + Anthropic + Ollama. ~1.9K LOC, 14 commits.

updated May 2026

claude-statusline

2
@michalschroeder

My Claude Code statusline + supporting hooks (model, cost, context, git, worktree, skills).

updated May 2026

find-what-you-live-by

2
@CaptainVuka

A Claude Skill for extracting personal principles from your own life experiences, inspired by Benjamin Franklin's 13 virtues method.

updated May 2026

pentestops

2
@1lkla

LLM-driven automated penetration testing pipeline — subdomain → probing → endpoints → fuzz → JS audit → auth analysis → API scoring → unauth API verification. Evidence-backed, multi-format reports, Tool Cards, Planner/Verifier/Reporter contracts.

updated May 2026

specdd

2
@unboundinnov

Spec-Driven Development as a single Agent Skill

updated May 2026

cc-logger

2
@kkrlstrm

Local observability for Claude Code. Captures sessions, sub-agents, and tool calls to Postgres via HTTP hooks.

updated May 2026

claude-code-safety-hooks-demo

2
@nefuro

自主用デモ

updated May 2026

specode

2
@qxbyte

Spec-driven workflow plugin for Claude Code / CodeBuddy with advisory hooks, phase selectors, locks, and task-swarm.

updated May 2026

x-post-optimizer

2
@iret77
updated May 2026

geekmagic-hook

2
@litdemon

Claude Code hooks for GeekMagic SmallTV-Ultra display

updated May 2026

claude-night-guard

2
@yyy900

Safety guardrails for Claude Code running unattended. Hooks that block dangerous tool calls before they execute, feed structured reasons back to Claude so it self-recovers, and write an audit log.

updated May 2026

atomic-claude

2
@damusix

Operational Tooling. Better token consumption. Faster decision making.

updated May 2026

solodev

2
@calneymgp

Solo-dev Claude Code skills: brainstorm → plan → code. No ceremony, no vibes. Fusion of Matt Pocock, OpenSpec, get-shit-done.

updated May 2026

wayback-machine-mcp

2
@lakshyamehta03

MCP server giving Claude and other LLM clients structured access to the Internet Archive's Wayback Machine — 6 tools, 4 prompts, 1 resource, over stdio.

updated May 2026
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