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

CardZero

★ 4
@mrocker

The first universal payment wallet for AI Agents. USDC on Base.

updated Aug 2026

claude-plugins

★ 4
@n24q02m

Claude Code plugin marketplace for the n24q02m MCP servers -- install web search, memory, Notion, email, Telegram, Godot, code review, and image/video tools in one command.

updated Oct 2026

creo

★ 4
@oyusypenko

AI-powered design review, UX analysis, SEO audit, content generation, DevOps & testing toolkit for Claude Code. 12 skills, 12 parallel subagents. One-liner install.

updated Oct 2026

mcp-amazon-sp-api

★ 4
@christian-ramos

MCP server exposing Amazon Selling Partner API to Claude Desktop and other MCP clients. 55+ tools across 19 SP-API scopes, multi-marketplace, safe writes.

updated Aug 2026

template-symfony-sveltekit

★ 4
@tony-stark-eth

Opinionated full-stack template: PHP 8.4 + Symfony 8 + SvelteKit 2 + FrankenPHP + Docker + 10 PHPStan extensions + Claude Code. Production-ready quality tooling from commit zero.

updated Oct 2026

cc-sentinel

★ 4
@turqoisehex

Governance infrastructure for Claude Code — hooks, agents, and workflows that prevent the failure modes autonomous coding sessions actually hit

updated Jun 2026

github-showcase

★ 4
@Ublaze

Claude Code skill — Generate LinkedIn & Facebook posts from any GitHub project as a styled Word document with embedded screenshots

updated Aug 2026

claude-engineer-toolkit

★ 4
@thitami

AI-powered toolkit for Claude Code that provides structured workflows, commands, and agents to automate planning, coding, testing, and shipping software.

updated Aug 2026

jb-task-manager-extension

★ 4
@mandrianova

Task management plugin for JetBrains IDEs with Claude Code integration

updated May 2026

Attacca

★ 4
@adihebbalae

Context-engineering plugin marketplace for Claude Code: 3 installable plugins, 25 skills, 3 subagents, 4 enforcement hooks. Reviewed by Anthropic for the Claude plugins community marketplace.

updated Sep 2026

claude-code-builder

★ 4
@mryesiller

Visual drag-and-drop builder for designing Claude Code project structures. Build agents, skills, hooks, and MCP servers on a canvas — then export as a ready-to-use ZIP.

updated May 2026

pm-operating-system

★ 4
@mshadmanrahman

An opinionated workflow system that restructures how product managers work with Claude Code. 16 PM skills, 9 agents, 10 coding rules, 13 slash commands, 6 automation hooks, product brain system, and session lifecycle with memory/handoffs.

updated Aug 2026

drupal-contrib-workbench

★ 4
@AJV009

Automated Drupal.org contribution workflow powered by Claude Code — skills, subagents, and mechanical enforcement hooks.

updated Sep 2026

harness-agent-skill

★ 4
@maorenxin
updated Jun 2026

claude-code-safety-hooks

★ 4
@alexknowshtml

Production-tested safety primitives for Claude Code agents: dangerous command guard + untrusted content defense

updated May 2026

evolve

★ 4
@jiangleo

Autonomous build-evaluate-iterate loop as a Claude Code skill. Inspired by Anthropic's harness design and Karpathy's autoresearch.

updated Jul 2026

AgentDebate

★ 4
@DFerryman

A VS Code extension powered by the Agent Client Protocol that orchestrates multiple AI agent CLIs — including Claude Code, OpenCode, and Codex — into a roundtable discussion. Give it a topic, watch the agents deliberate, and get a synthesized final result.

updated Aug 2026

claude-workflow-ai-saas

★ 4
@daniyalmalikoo7

Production-ready Claude Code workflow for AI-native SaaS. 28 agents, 7 commands, 6 skills, 7 hooks across 5 SDLC phases with enforced gates. Assembly-first: Shadcn, Clerk, Stripe, Supabase defaults.

updated Apr 2026

claude-ltm

★ 4
@LaserPhaser

Long-term memory plugin for claude (llm-wiki)

updated Apr 2026

harness-optimizer

★ 4
@CaesiumY

Claude Code skill that diagnoses and improves harness configurations based on 8 design principles from Anthropic's harness design article

updated Aug 2026

cute-claude-hooks

★ 4
@UF-gzj

关镇江原创私有增强版:Claude Code 中文提示、界面汉化与监控状态栏

updated May 2026

harnish

★ 4
@jazz1x

Harness Claude for autonomous implementation — turn every failure into a guardrail and let context persist across sessions and worktrees.

updated May 2026

claudecode-architecture-guide-skill

★ 4
@chenluda

An AI Agent Skill distilled from Claude Code (~1,900 files, 510K+ lines of TypeScript) — Anthropic's agentic CLI for software engineering. Use it to build new systems from scratch or retrofit architecture patterns into existing ones.

updated Sep 2026

claude-power-skills

★ 4
@irfad7

20 power-user skills for Claude Code: session memory and consolidation, context compression, multi-agent orchestration, adversarial bug hunting, security review, calibrated estimation and decision archaeology. Drop-in SKILL.md files. Built by Irfad Imtiaz.

updated Jul 2026
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