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

8236entries
★ starsA–Z name

expansion

1
@anantham

Custom Claude Code skills: canvas diagrams, visualization, and personal workflow extensions

updated Jul 2026

mcp-coder-bench

1
@mpecan

Benchmark tool for measuring MCP server effectiveness in LLM-assisted development

updated Feb 2026

claude-ticket-gen

1
@brett-buskirk

AI-powered CLI tool that parses roadmap documents and automatically generates GitHub issues with smart categorization and formatting.

updated Jul 2026

intergrado-claude-plugins

1
@intergrado

Community Claude Code plugins by Intergrado - LSP servers, developer tools, and productivity extensions

updated Jan 2026

pg-dev-claude-code

1
@flyinweb

PostgreSQL kernel and extension development best practices with TDD workflow, security-first approach, and extension-first principle

updated Jan 2026

ClaudeCodeUsage

1
@RamboXWang

Chrome extension to monitor Claude Code Usage with ease

updated Feb 2026

finance-mcp

1
@Harihara04sudhan

Python MCP server exposing finance and market-data tools to Claude and other LLMs. Deployable to Vercel.

updated Apr 2026

sidstack

1
@junixlabs

Give Claude Code persistent project memory. 32 MCP tools for knowledge, impact analysis, governance & task management. Desktop app (Tauri) + CLI. Local-first, SQLite-based.

updated Mar 2026

claude-code-master

1
@enju0122

🛠 Master Claude Code with a complete guide on AI coding assistants, featuring agents, commands, skills, and rules to streamline your workflow.

updated Jul 2026

flow

1
@corticalstack

Flow: a cross-tool agentic-coding workflow plugin (research, plan, implement, validate) with a tracker abstraction

updated Jun 2026

iris

1
@petal-labs

Go SDK + CLI for building AI apps with a unified multi-provider LLM interface (OpenAI, Anthropic, Gemini, Ollama, HuggingFace, etc.), streaming, tool/function calling, secure key management, retries, and observability hooks.

updated May 2026

chrome-ai-slider

1
@Trojanku

Slider extension for chrome-based browsers with AI chat using your codex/claude subscription tokens

updated Feb 2026

claude-code-extensions

1
@deepanscode
updated Jun 2026

claude-code-browser

1
@Bowers-Enterprises

VS Code extension for browsing and invoking Claude Code skills, agents, MCP servers, and plugins

updated Apr 2026

harakiro-marketplace

1
@harakiro

Claude Code plugin marketplace — AI development tools by harakiro

updated Jul 2026

claude-sync

1
@23jmo

Sync skills, plugins, and extensions between Claude Code and Claude Desktop

updated Feb 2026

claude-todo-stream

1
@emersonmccuin-pixel

VS Code extension that displays Claude Code's task list in the sidebar

updated Feb 2026

agentic

1
@Yann-Favin-Leveque

Java orchestration library for production LLM apps — build workflows or autonomous agents with tool-calling. 11 native providers (OpenAI, Anthropic, Mistral, Grok, Gemini, DeepSeek, Azure variants) + JSON-driven custom. Multi-instance load-balancing, per-model rate limiting, error-type-aware retries.

updated Jul 2026

HR-Management-Chatbot

1
@rameez0312

HR Management System (HRMS) built with Python-based APIs and MCP tools to manage employee records, onboarding workflows, and HR ticketing. Features MCP-enabled email automation and prompt-driven orchestration for end-to-end HR operations via Claude Desktop (Anthropic).

updated Jul 2026

PlanDrop

1
@genecell

Chrome extension for plan-review-execute workflows with Claude Code on remote servers. Type a task in your browser, review the plan, authorize execution over SSH.

updated Mar 2026

codex-openai-proxy

1
@UtoerLiam

Proxy server to use ChatGPT Plus tokens with CLINE/Claude Code extensions via OpenAI API compatibility

updated Feb 2026

SuperGrok-Heavy-4-2-Skeleton

1
@Sovereignty-One

The entire skeleton

updated Jul 2026

ccbuilder

1
@cathy-kim

claude-code-extension-builder

updated Jul 2026

commune-mcp

1
@commune-dev

Email & SMS for Claude Desktop, Cursor, and Windsurf. 13 tools: create inboxes, send email, read threads, provision phone numbers, send SMS. Install in 30s.

updated Jun 2026
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