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

8250entries
★ starsA–Z name

codd-dev

104
@yohey-w

CoDD: Coherence-Driven Development — Claude Code plugin for cross-artifact change impact analysis

updated Jun 2026

smileyCoin

103
@fefergrgrgrg

simple web ui to manage mcp (model context protocol) servers in the claude app

updated Apr 2026

mcpcat-typescript-sdk

103
@MCPCat

MCPcat is an analytics platform for MCP server owners 🐱.

updated May 2026

knowledge-graph-system

103
@aaronsb

Kappa Graph — κ(G). A semantic knowledge graph where knowledge has weight. Extracts concepts, measures grounding strength, preserves disagreement, traces everything to source.

updated Jun 2026

awesome-claude-code-workflows

103
@ithiria894

Curated workflow recipes that combine hooks, MCP servers, skills, agents, and CLAUDE.md to automate real Claude Code tasks

updated Jun 2026

ultraship

103
@Houseofmvps

"ULTRASHIP" Claude Code plugin — 39 skills, 33 tools, 11 agents for ship-ready workflows: planning, review, pentesting, safety guardrails, canary monitoring, SEO/AI-readiness check, penetration testing, code review, competitive analysis, incident response. 1 dependency. 180 tests. MIT.

updated May 2026

resale-agent-skill-hub

103
@madguyevans-creator

AI-powered multi-platform C2C resale toolkit — 8 Claude Code skills + MCP server for automating second-hand selling

updated May 2026

zendesk-mcp-server

102
@reminia

A Model Context Protocol server for Zendesk

updated May 2026

api2mcp4j

102
@TheEterna

Spring Boot Starter: Auto-convert existing REST APIs (@RestController) to MCP Server with zero/low-code. Expose controllers as MCP Tools instantly.

updated May 2026

systemprompt-mcp-server

102
@systempromptio

[DEPRECATED] Superseded by systempromptio/systemprompt-template and systempromptio/systemprompt-core. Reference MCP server implementation (OAuth 2.1, tools, prompts, resources, sampling, notifications).

updated Apr 2026

claude-emporium

102
@Vvkmnn

🏛 [UNDER CONSTRUCTION] A (roman) claude plugin marketplace

updated May 2026

aspm

102
@arkylab

A Git-based package manager designed for AI-assisted development, similar to npm but supporting skills, agents, commands, hooks, and any AI resource types.

updated May 2026

higgsfield-ai-prompt-skill

102
@OSideMedia

Claude AI skill for cinematic Higgsfield AI prompts — 20 sub-skills covering Cinema Studio 2.5/3.0/3.5, MCSLA formula, Soul ID character consistency, Seedance 2.0 prompt modes, Kling 3.0 Motion Control, Elements system, DISCIPLINE framework, production benchmarks, and 17 templates across 3 categories.

updated Jun 2026

thebrain

102
@Advenire-Consulting

A Claude Code plugin that gives your AI persistent memory, code awareness, safety guardrails, and a behavioral system that learns how you work

updated Jun 2026

safari-mcp

102
@achiya-automation

Native Safari browser automation for AI agents. 80 tools via AppleScript — zero overhead, keeps logins, runs silently in background. Drop-in alternative to Chrome DevTools MCP with 40-60% less CPU/heat on Apple Silicon.

updated Jun 2026

sp500-mcp-server

102
@zhensherlock

An MCP server and Next.js web app for querying S&P 500 company data from Supabase, with tools for company info, news, officers, and SEC filings, plus embedded MCP App UI resources, Elicitation, and Sampling support.

updated May 2026

sample-agentic-ai-demos

101
@aws-samples

Collection of examples of how to use Model Context Protocol with AWS.

updated Apr 2026

lapras-mcp-server

101
@lapras-inc

lapras.com 公式MCP Server

updated May 2026

mcp-python-interpreter

101
@yzfly

MCP Python Interpreter: run python code. Python-mcp-server, mcp-python-server, Code Executor

updated May 2026

pubmed-mcp-server

101
@cyanheads

Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms via MCP. STDIO or Streamable HTTP.

updated May 2026

awesome-claude-plugins

101
@Chat2AnyLLM

A curated list of awesome claude marketplaces and plugins

updated Jun 2026

document-SKILLs

101
@appautomaton

Claude Code and Codex SKILLs for PDF, Excel, Word, and PowerPoint manipulation — extraction, forms, formulas, tracked changes, adapted from Anthropic skills.

updated Jun 2026

alive

101
@alivecontext

Personal Context Manager for Claude Code. Your life in walnuts.

updated May 2026

h5i

101
@h5i-dev

Next-Gen AI-Aware Git

updated Jun 2026
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