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

ghostty-claude-intellij

19
@lcalmsky

IntelliJ plugin to open Ghostty terminal with Claude Code, sending current file and selection context via keyboard shortcut

updated Jul 2026

claude-playbook-plugin

19
@horiacristescu

Agent steering methodology as a Claude Code plugin — task documents that execute, self-inspect, and pass between agents

updated Jul 2026

sensitive-canary

19
@coo-quack

Claude Code hooks that guard secrets and PII before they reach the Anthropic API

updated Jul 2026

discord-mcp

19
@HardHeadHackerHead

Manage your entire Discord server from Claude Code, Claude Desktop, Cursor, or Windsurf via MCP. 134 admin tools across 20 categories. Interactive setup wizard included.

updated Jul 2026

ai-tools

19
@damusix

AI Tools to be installed as skills, plugins, etc.

updated May 2026

claude-seo-skills

19
@lionkiii

42 SEO commands for Claude Code — site audits, Ahrefs backlinks, GSC analytics, SERP research, content briefs, technical SEO, schema validation, and more

updated Jul 2026

google-ads-skills

19
@itallstartedwithaidea

Google Ads Agent Skills for Claude — campaign analysis, account auditing, safe write ops, PPC math, and MCP server integration

updated Jul 2026

a-gusman-claude

19
@andregusman-raiz

Claude Code agent system — 46 agents, 60 skills, 31 rules, 7 hooks, 12 playbooks. 193+ sessions, 464 commits. Self-improving.

updated Jun 2026

sentinel-ai

19
@MaxwellCalkin

Real-time AI safety guardrails for LLM apps. 10 scanners: prompt injection, PII, harmful content, code vulnerabilities, obfuscation detection. Sub-ms latency. Python + TypeScript SDKs. MCP proxy. Claude Code hooks.

updated Jul 2026

llm-usage-tracker

19
@ninedter

macOS desktop + always-on Docker app that monitors Claude and OpenAI/Codex subscription quotas and tracks every Claude Code & Codex agent session in real time — tool calls, touched files, token usage, and analytics. Local-first: SQLite, SSE streaming, encrypted credentials, no telemetry.

updated Jul 2026

frontend-craft

19
@bovinphang

frontend-craft is a universal frontend plugin that brings the same opinionated engineering standards to all 15 AI coding assistants.

updated Jul 2026

awesome-claude-code-hooks

19
@ithiria894

Curated collection of Claude Code hooks for event-driven automation

updated Jul 2026

seo-drift-monitor

19
@dancolta

Detects when a deploy silently ships a noindex, drops a schema block, or rewrites your canonical. Baselines a page's SEO contract, diffs every change with Critical/Warning/Info severity, and points fixes to claude-seo sub-skills. A Claude Code skill. Open source.

updated Jul 2026

yandex-direct-for-all

19
@nebelov

GitHub-ready Codex plugin bundle for Yandex Direct, Wordstat, Metrika, Roistat, Audiences, and Yandex Search API workflows.

updated Jul 2026

nio

19
@core0-io

Execution assurance agent guard and observability for autonomous AI operating in production.

updated Jun 2026

infostyle-skill

19
@artgas1

Claude Code skill for editing Russian text using Ilyakhov's information style (инфостиль). First-ever AI skill based on 'Пиши, сокращай' methodology.

updated Jul 2026

learn-java-frameworks-marketplace

19
@nlinhvu

Claude Code plugin marketplace for learning Java frameworks by rebuilding them from source. Two approaches: API-first (outside-in) and Core-first (inside-out). AI agents analyze real framework code, generate structured learning outlines, and guide you through building simplified working versions with tests.

updated Jun 2026

everything-claude-unity

19
@XeldarAlz

The ultimate Claude Code toolkit for Unity — 20 AI agents, 22 slash commands, 41 skills, and safety hooks for AI-assisted Unity game development. Drop-in, production-ready.

updated Jul 2026

afrotools

19
@afrotools

AI-ready registry of structured API specs for African providers. Powers the Afro.tools MCP server and Claude Code plugin.

updated Jul 2026

postmodernist

19
@kgeoffrey

Postmodernist critique skill for Claude and Codex. Pressure-test AI-generated strategy and marketing slop. Debug reality.

updated Jul 2026

muriel

19
@andyed

Teaches Claude to use a dozen visualization-building tools — raster, SVG, web, video, terminal, interactive, gaze plots, heatmaps, science figures. Brand tokens and 8:1 contrast audit built in.

updated Jul 2026

claude-academic-research

19
@mronkko

Claude Code plugin for academic research: MCP-grounded citations, empirical integrity, systematic reviews, Zotero operations, and parallel-critic manuscript revision.

updated Jul 2026

slop-check

19
@allanta8

Anti-slop content audit skill for X, ViewFT, LinkedIn, and long-form posts.

updated Jun 2026

Bumblebee

19
@solyanviktor-star

Turns any text into a video montage of movie clips featuring the specified text

updated Jul 2026
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