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

8253entries
★ starsA–Z name

Pika-Plugins

36
@Pika-Labs

The official Pika Claude Code plugin — 3 curated /pika:* slash commands (podcast / explainer / ugc-ads) backed by 42 atomic media tools at mcp.pika.me.

updated Jun 2026

genesis-architect

36
@maioio

Research-first project scaffolding for Claude Code. Mines GitHub Issues for production failures before writing a single file.

updated Jun 2026

Jiva

35
@KarmaloopAI

Jiva is a CLI-first, open source autonomous AI agent and open alternative to Claude. Written in TypeScript with native support for Sarvam-105B and gpt-oss-120b, it autonomously plans and executes tasks from your terminal. Supports MCP servers, a built-in Skills system, and Jiva Personas - a plugin framework fully compatible with Claude Plugins.

updated May 2026

mcp-gemini-server

35
@bsmi021

This project provides a dedicated MCP (Model Context Protocol) server that wraps the @google/genai SDK. It exposes Google's Gemini model capabilities as standard MCP tools, allowing other LLMs (like Cline) or MCP-compatible systems to leverage Gemini's features as a backend workhorse.

updated Jan 2026

ast-mcp-server

35
@angrysky56

By transforming source code into a queryable Semantic Graph and a structured AST, this tool bridges the gap between "reading text" and "understanding structure." For an AI assistant, it provides the "spatial" awareness needed to navigate deep dependencies without getting lost in large files.

updated Apr 2026

fantasy-football-mcp-public

35
@derekrbreese

Yahoo Fantasy Football MCP server for Claude Desktop - Advanced lineup optimization, draft assistance, and league management. Built using Claude Code.

updated May 2026

napari-mcp

35
@royerlab

🔬 MCP server for AI-powered napari control. Connect Claude, ChatGPT, Cursor, and other LLMs to napari for interactive image analysis. Perfect for automating microscopy workflows and building intelligent image analysis tools.

updated May 2026

clangd-mcp-server

35
@felipeerias

Experimental implementation of a MCP for Claude Code that lets it connect to a language server like clangd.

updated May 2026

strategy-os

35
@BellaBe

The validation layer for solo founders. Research, strategy, and validation on Claude Code - decide before you build. 3 agents, 29 skills. MIT.

updated May 2026

fabric-cli-plugin

35
@data-goblin

Claude Code plugin for Microsoft Fabric CLI

updated May 2026

mcmodding-mcp

35
@OGMatrix

mcmodding-mcp is a Model Context Protocol (MCP) server that gives AI assistants like Claude direct access to Minecraft modding documentation. Instead of relying on potentially outdated training data, your AI assistant can search real documentation, find code examples, and explain concepts accurately.

updated Jun 2026

claude-plugins

35
@laurigates

Claude Code plugins for development workflows

updated Jun 2026

TARS

35
@inceptyon-labs

TARS is a centralized hub for discovering, creating, editing, and managing Claude Code resources. It provides a visual interface for managing skills, agents, commands, hooks, MCP servers, and plugins across multiple projects with safe apply/rollback operations and profile-based configuration sharing.

updated May 2026

grove

35
@GarrickZ2

A Kanban-style TUI for parallel AI coding. Manage Git worktrees as tasks, run multiple agents in isolated tmux sessions, get notified via hooks. Built for developers who vibe with Claude Code, Cursor, and all other agents..

updated Jun 2026

paper-fetcher

35
@fermionoid

Academic paper full-text fetcher - MCP server for Claude Code with Open Access, arXiv, and EZproxy support

updated May 2026

claude-seo-skill

35
@mangollc

Comprehensive SEO & AEO Claude Code plugin for agencies. Keyword research, technical audits, content optimization, local SEO, backlinks, and AI search optimization.

updated May 2026

beacon-plugin

35
@sagarmk

Semantic code search plugin for Claude Code using hybrid vector search + BM25. 98% accuracy, 5x faster than grep.

updated May 2026

claude-skill-b2-cloud-storage

35
@backblaze-labs

Claude Skill for Backblaze B2 Cloud Storage management from the terminal. Manage buckets, list and search files, audit storage usage, detect stale or large objects, review security posture, and safely clean up data using natural language. Built on the Agent Skills specification and compatible with Claude Code and other skills-based agents.

updated May 2026

encode-toolkit

35
@ammawla

MCP server and Claude Plugin for a full ENCODE Project genomic data and analysis toolkit — search, download, track, and analyze functional genomics experiments

updated May 2026

claude-soul

35
@lauvsong

Custom Claude Code settings — rules, hooks, skills, and scheduled tasks

updated May 2026

master-claude-for-legal

35
@sboghossian

Master skill pack for legal teams using Claude. References, starter skills, templates, and the source webinar dataset. Built from Anthropic's Claude for Legal Teams webinar + HAQQ deployment experience. MIT.

updated Jun 2026

deep-research

35
@oh-rid

Claude Code plugin: deep research with 3-way LLM triangulation (Claude + Gemini via agy + GPT-5 via codex). Worktree-isolated, primary-source verified (mechanical URL + passage check), defends against shared-corpus consensus hallucination.

updated Jun 2026

mcp-optionsflow

34
@twolven

An MCP server providing advanced options analysis through Yahoo Finance, supporting Greeks calculations, strategy evaluation (CCS/PCS/CSP/CC), and risk metrics. Built for MCP with Claude.ai.

updated Jun 2026

Claude_Desktop_API_USE_VIA_MCP

34
@mlobo2012

MCP server implementation for using Claude API with Claude Desktop, providing advanced API integration and conversation management.

updated Apr 2026
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