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

8239entries
★ starsA–Z name

mcp-server-mattermost

35
@cloud-ru-tech

MCP server for Mattermost — let Claude, Cursor, and other AI assistants work with channels, messages, and files

updated Jul 2026

claude-code-plugin

35
@sean-sunagaku
updated Jun 2026

markview

35
@paulhkang94

Native macOS markdown preview + MCP server for Claude Code. Swift/SwiftUI, GFM, Mermaid, syntax highlighting. No Electron.

updated Jul 2026

claude-code-plugins

35
@FlorianBruniaux

Production-ready Claude Code plugins: skills, hooks, agents, slash commands, and MCP templates.

updated Jul 2026

localwp-agent-tools

35
@10up

A Local add-on that provides an MCP server, skills, and project context for AI-powered WordPress development. Works with Claude Code, Cursor, Windsurf, VS Code Copilot, and any MCP client.

updated Jul 2026

gstack

35
@Ahacad

Claude Code plugin wrapper for garrytan/gstack

updated Jul 2026

claude-soul

35
@lauvsong

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

updated May 2026

claude-handoff

35
@REMvisual

Claude Code skill for session handoffs — survives context compaction, chain-links across sessions.

updated Jul 2026

claude-code-slack-channel

35
@jeremylongshore

Slack-native governance substrate for Claude Code and peer agents: every tool call passes a tiered policy engine and lands in a hash-chained, Ed25519-signed audit journal you can verify offline. The governance kernel the companion agent-governance-plane (AGP) builds on.

updated Jul 2026

ai-memory-mcp

35
@alphaonedev

Persistent memory for any AI — MCP server, HTTP API, CLI. Works with Claude, ChatGPT, Grok, Gemini, Codex, Cursor, OpenClaw, and any MCP client. 97.8% R@5 on LongMemEval. Pure SQLite FTS5, zero cloud dependencies.

updated Jul 2026

aso-skill

35
@furkancingoz

Complete App Store Optimization (ASO) skill for Claude Code - metadata generation, competitor analysis, App Store Connect submission, and screenshot creation

updated Jul 2026

totally-integrated-claude

35
@Czarnak

A Claude Code plugin for Siemens TIA Portal engineering automation.

updated Jul 2026

ATM

35
@sfox38

Full featured MCP server for Home Assistant: give each AI agent its own token, scoped to only what you allow, with per-entity safety, full audits, plus you can prompt entirely within Home Assistant.

updated Jul 2026

Visual-Enhancement-mcp

35
@goehou

MCP stdio server for image recognition via an existng vision model 一个可以增强claude code/codex/opencode识图能力的MCP

updated Jul 2026

continuity-v2

35
@Haustorium12

Long-term memory for Claude Code. Indexes every session as SQLite+FTS5, exposes recall via MCP, and ships PreCompact/PostCompact hooks so nothing is ever lost.

updated Jul 2026

pi-native-search

35
@smalibary

Pi extension that adds web_search and web_fetch tools using each provider's native search backend (ZAI, Anthropic, Google, OpenAI, xAI, Claude Code subscription), with DuckDuckGo fallback.

updated Jul 2026

bhived-mcp

35
@ArtKeyAi

bhived is an MCP server that gives AI agents shared memory, skills, and tool discovery. install once, works in Claude Code, Cursor, and 15+ other agents.

updated Jul 2026

claude-certified-architect-guide

35
@vkorost

Unofficial study guide for Anthropic's Claude Certified Architect (CCA-F) certification. Covers agentic loops, multi-agent systems, subagents, MCP servers, hooks, tool routing, CLAUDE.md hierarchy, slash commands, plan mode, and Claude Code CI/CD pipelines.

updated Jul 2026

skill-market-daily-review

35
@quantskills

Agent skill for Pandadata-based A-share after-close daily market review reports.

updated Jul 2026

tale-mode

35
@alicicek

A discipline plugin for Claude Code + OpenAI Codex — plan first, verify against the real code, receipts on every decision, independent adversarial review, and a self-armed loop that keeps going until a real check passes. Built by Fable to make any Claude work like a careful senior engineer.

updated Jul 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 Jul 2026

MCP-Server-Starter

34
@TheSethRose

A Model Context Protocol server starter template

updated May 2026

claude-mcp-trello

34
@hrs-asano

A Model Context Protocol (MCP) server that provides tools for interacting with Trello boards.

updated Jun 2026

things-fastmcp

34
@excelsier

Enhanced FastMCP implementation of the Things MCP server for Claude and Windsurf

updated Jul 2026
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