# Cross AI Tools > The largest community-curated directory of Claude Code extensions: skills, plugins, and MCP servers. Updated daily from GitHub. 300,000+ developers use it monthly to discover tools for AI-assisted development. Last updated: 2026-06-24 ## At a glance - 21699+ Claude Code skills indexed - 12515+ MCP (Model Context Protocol) servers indexed - 2568+ plugin marketplaces indexed - ~300,000 unique monthly visitors (100% organic, public analytics) - Updated daily from GitHub via automated discovery - Free, no signup required to browse or install - Independent project, not affiliated with Anthropic ## Definitions - **Skill**: a single reusable instruction set (a SKILL.md file) that teaches Claude Code how to do a specific task. Installs with one command. - **Plugin**: a bundle of Claude Code extensions (skills, MCP servers, slash commands, hooks, or agents) packaged as one installable unit. - **Marketplace**: a GitHub repo that hosts and distributes multiple plugins under one registry. Subscribe with `/plugin marketplace add `. - **MCP server**: a Model Context Protocol server that extends Claude Code with external tools, APIs, and integrations. ## Top entry points - [Homepage](https://crossaitools.com): Discover Claude Code plugins, skills, and MCP servers. - [Skills](https://crossaitools.com/skills): Browse all 21699+ Claude Code skills, sorted by installs. - [MCP servers](https://crossaitools.com/mcp): Browse all 12515+ MCP servers compatible with Claude Code. - [Marketplaces](https://crossaitools.com/marketplaces): Browse all 2568+ plugin marketplaces. - [Tools](https://crossaitools.com/tools): Hand-picked tools the maintainer uses to build with Claude Code. - [Newsletter digest](https://crossaitools.com/digest): This week in Claude: weekly model updates, releases, and notable tools. - [Advertise](https://crossaitools.com/advertise): Sponsorship pricing and traffic stats for advertisers. - [Pricing (machine-readable)](https://crossaitools.com/pricing.md): Structured ad pricing for AI agents evaluating sponsorship. - [About](https://crossaitools.com/about): Why this directory exists and how it stays curated. ## Top skills (by installs and stars) - [caveman](https://crossaitools.com/skills/juliusbrussee/caveman/caveman): Ultra-compressed communication mode cutting token usage ~75% while preserving technical accuracy. - [grill-me](https://crossaitools.com/skills/mattpocock/skills/grill-me): Relentless interviewing skill that stress-tests plans and designs through systematic questioning. - [improve](https://crossaitools.com/skills/shadcn/improve/improve): Survey any codebase as a senior advisor and produce prioritized, self-contained implementation plans for other models/agents to execute. - [systematic-debugging](https://crossaitools.com/skills/obra/superpowers/systematic-debugging): Structured debugging methodology that mandates root cause investigation before attempting any fixes. - [karpathy-guidelines](https://crossaitools.com/skills/forrestchang/andrej-karpathy-skills/karpathy-guidelines): Behavioral guidelines to reduce common LLM coding mistakes through explicit assumptions, simplicity, and verifiable success criteria. - [find-skills](https://crossaitools.com/skills/vercel-labs/skills/find-skills): Discover and install specialized agent skills from the open ecosystem when users need extended capabilities. - [frontend-design](https://crossaitools.com/skills/anthropics/skills/frontend-design): Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making ch - [vercel-react-best-practices](https://crossaitools.com/skills/vercel-labs/agent-skills/vercel-react-best-practices): React and Next.js performance optimization across 70 rules prioritized by impact. - [microsoft-foundry](https://crossaitools.com/skills/microsoft/azure-skills/microsoft-foundry): End-to-end deployment, evaluation, and management of AI agents on Microsoft Foundry. - [azure-ai](https://crossaitools.com/skills/microsoft/azure-skills/azure-ai): Unified access to Azure AI services: Search, Speech, OpenAI, and Document Intelligence. ## Top MCP servers (by stars) - [Context7](https://crossaitools.com/mcp/upstash/context7): Up-to-date code docs for any prompt - [Vibe Prospecting](https://crossaitools.com/mcp/explorium-ai/vibeprospecting-mcp): Power your chat with B2B data to create lead lists, research companies, personalize your outreach, and more. - [Supabase](https://crossaitools.com/mcp/supabase-community/supabase-mcp): MCP server for interacting with the Supabase platform - [Linear](https://crossaitools.com/mcp/app.linear/linear): MCP server for Linear project management and issue tracking - [GitHub](https://crossaitools.com/mcp/github/github-mcp-server): Connect AI assistants to GitHub - manage repos, issues, PRs, and workflows through natural language. - [Scrapling MCP Server](https://crossaitools.com/mcp/d4vinci/scrapling): Web scraping with stealth HTTP, real browsers, and Cloudflare bypass. CSS selectors supported. - [Pubmed Mcp Server](https://crossaitools.com/mcp/cyanheads/pubmed-mcp-server): Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms. - [Clinicaltrialsgov Mcp Server](https://crossaitools.com/mcp/cyanheads/clinicaltrialsgov-mcp-server): Search ClinicalTrials.gov — find studies, retrieve results, match patients to eligible trials. - [Airweave Search](https://crossaitools.com/mcp/io.github.airweave-ai/search): MCP server for searching Airweave collections with natural language queries. - [Slack MCP Server](https://crossaitools.com/mcp/jtalk22/slack-mcp-server): Slack MCP for self-host or managed Cloud, with Gemini CLI and secure-default HTTP. ## Top marketplaces (by stars and plugin count) - [f/prompts.chat](https://crossaitools.com/plugins/f-prompts.chat): f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete pr - [affaan-m/everything-claude-code](https://crossaitools.com/plugins/affaan-m-everything-claude-code): The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor - [obra/superpowers](https://crossaitools.com/plugins/obra-superpowers): An agentic skills framework & software development methodology that works. - [anthropics/skills](https://crossaitools.com/plugins/anthropics-skills): Public repository for Agent Skills - [anthropics/claude-code](https://crossaitools.com/plugins/anthropics-claude-code): Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining c - [nextlevelbuilder/ui-ux-pro-max-skill](https://crossaitools.com/plugins/nextlevelbuilder-ui-ux-pro-max-skill): An AI SKILL that provide design intelligence for building professional UI/UX multiple platforms - [upstash/context7](https://crossaitools.com/plugins/upstash-context7): Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors - [ComposioHQ/awesome-claude-skills](https://crossaitools.com/plugins/composiohq-awesome-claude-skills): A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows - [gsd-build/get-shit-done](https://crossaitools.com/plugins/gsd-build-get-shit-done): A light-weight and powerful meta-prompting, context engineering and spec-driven development system for Claude Code by TÂCHES. - [thedotmack/claude-mem](https://crossaitools.com/plugins/thedotmack-claude-mem): A Claude Code plugin that automatically captures everything Claude does during your coding sessions, compresses it with AI (using Claude's agent-sdk), and injec ## Skill categories - [Frontend Development](https://crossaitools.com/skills/category/frontend): Discover Claude Code skills for frontend development. React, Next.js, Angular, Vue, and UI component skills to accelerate your frontend workflow. - [Backend & APIs](https://crossaitools.com/skills/category/backend): Claude Code skills for backend development. Build APIs, manage databases, design server architecture, and implement authentication with AI assistance. - [Testing & QA](https://crossaitools.com/skills/category/testing): Claude Code skills for testing and quality assurance. Write unit tests, end-to-end tests, and improve test coverage with AI-powered testing skills. - [Security](https://crossaitools.com/skills/category/security): Claude Code security skills for code auditing, vulnerability detection, and security hardening. Protect your applications with AI-powered security analysis. - [DevOps & CI/CD](https://crossaitools.com/skills/category/devops): Claude Code skills for DevOps workflows. Automate CI/CD pipelines, configure monitoring, manage deployments, and troubleshoot infrastructure issues. - [Git & Pull Requests](https://crossaitools.com/skills/category/git): Claude Code skills for Git workflows. Write better commits, create pull requests, review code, and manage branches with AI-powered Git skills. - [Documentation](https://crossaitools.com/skills/category/docs): Claude Code skills for writing documentation. Generate API docs, docstrings, READMEs, and technical content with consistent style and accuracy. - [Code Review & Quality](https://crossaitools.com/skills/category/code-review): Claude Code skills for code review and quality. Automated code review, linting, refactoring suggestions, and best-practice enforcement. - [AI & Agent Building](https://crossaitools.com/skills/category/ai-agents): Claude Code skills for building AI agents, MCP servers, and agentic workflows. Accelerate AI development with community-built agent patterns. - [Skill Development](https://crossaitools.com/skills/category/skill-dev): Claude Code skills for creating new skills. Meta-skills that help you write, test, and publish your own Claude Code skills and SKILL.md files. - [Data Science & ML](https://crossaitools.com/skills/category/data-science): Claude Code skills for data science and machine learning. Work with datasets, build visualizations, and accelerate ML workflows with Claude. - [Release Management](https://crossaitools.com/skills/category/releases): Claude Code skills for release management. Generate changelogs, manage versions, preview releases, and automate your shipping workflow. - [Debugging](https://crossaitools.com/skills/category/debugging): Claude Code skills for debugging and troubleshooting. Find bugs faster, improve error handling, and diagnose issues with AI-powered debugging assistance. - [Productivity & Planning](https://crossaitools.com/skills/category/productivity): Claude Code skills for productivity and project planning. Manage tasks, plan sprints, make decisions, and organize your development workflow. - [Automation & Workflows](https://crossaitools.com/skills/category/automation): Claude Code skills for automation and workflow orchestration. Build automated pipelines, integrate tools, and create repeatable workflows. - [Python](https://crossaitools.com/skills/category/python): Claude Code skills for Python development. Django, Flask, FastAPI, and general Python skills for writing idiomatic, well-tested Python code. - [Rust](https://crossaitools.com/skills/category/rust): Claude Code skills for Rust development. Write idiomatic Rust, manage memory safely, and follow Rust best practices with AI assistance. - [Marketing & SEO](https://crossaitools.com/skills/category/marketing-seo): Claude Code skills for marketing and SEO. Optimize pages for search engines, analyze content performance, build marketing automation, and grow organic traffic. - [Sales & Marketing](https://crossaitools.com/skills/category/sales-marketing): Claude Code skills for sales and marketing workflows. Automate outbound, manage CRM pipelines, generate leads, and run GTM motions with AI-powered sales skills. - [Cloud & Infrastructure](https://crossaitools.com/skills/category/cloud): Claude Code skills for cloud platforms and infrastructure. Deploy to AWS, manage Azure resources, configure GCP, and write Terraform with AI assistance. - [Mobile Development](https://crossaitools.com/skills/category/mobile): Claude Code skills for mobile app development. Build Flutter, React Native, SwiftUI, and Kotlin apps with AI-powered mobile development skills. - [Go](https://crossaitools.com/skills/category/golang): Claude Code skills for Go development. Write idiomatic Go, build concurrent systems, and follow Go best practices with AI assistance. - [Java & JVM](https://crossaitools.com/skills/category/java): Claude Code skills for Java and JVM development. Spring Boot, Kotlin, Gradle, Maven, and enterprise Java patterns with AI assistance. - [Design & UI/UX](https://crossaitools.com/skills/category/design-ui): Claude Code skills for design and UI/UX. Build design systems, implement accessibility, create animations, and follow visual design best practices. - [CLI & Terminal](https://crossaitools.com/skills/category/cli): Claude Code skills for command-line tools and terminal workflows. Build CLIs, write shell scripts, and automate terminal tasks with AI assistance. - [Office & Documents](https://crossaitools.com/skills/category/office): Claude Code skills for office documents and productivity suites. Work with PDF, Excel, PowerPoint, Google Workspace, and other document formats. - [Finance & Trading](https://crossaitools.com/skills/category/finance): Claude Code skills for finance and trading. Analyze stocks, build trading bots, interact with crypto exchanges, and model financial data. - [Game Development](https://crossaitools.com/skills/category/game-dev): Claude Code skills for game development. Build games with Unity, Godot, Unreal Engine, and learn game programming patterns with AI assistance. - [PHP & Laravel](https://crossaitools.com/skills/category/php): Claude Code skills for PHP development. Laravel, WordPress, Symfony, and modern PHP patterns with AI assistance. - [Databases](https://crossaitools.com/skills/category/database): Claude Code skills for databases. Write SQL, design schemas, generate migrations, and work with PostgreSQL, MySQL, MongoDB, Redis, and ORMs like Prisma and Driz - [Generative Media](https://crossaitools.com/skills/category/ai-media): Claude Code skills for generative AI media. Generate and edit images, video, music, and speech with models like Flux, Stable Diffusion, ElevenLabs, and ComfyUI. - [Video & Audio Editing](https://crossaitools.com/skills/category/video-editing): Claude Code skills for editing real recordings. Cut and tighten videos, remove silences, transcribe audio, generate subtitles, and process podcasts with AI assi - [Web3 & Blockchain](https://crossaitools.com/skills/category/web3): Claude Code skills for Web3 and blockchain development. Write and audit smart contracts, build with Solidity, Foundry, and Hardhat, and integrate wallets and De - [.NET & C#](https://crossaitools.com/skills/category/dotnet): Claude Code skills for .NET and C# development. Build with ASP.NET Core, Blazor, Entity Framework, and MAUI, and follow modern C# best practices. ## MCP server categories - [Sales & Marketing](https://crossaitools.com/mcp/category/sales-marketing): MCP servers for sales and marketing. Connect Claude to CRMs, lead enrichment APIs, outbound tools, and GTM platforms to automate your revenue pipeline. - [Web & Browser Automation](https://crossaitools.com/mcp/category/web-browser): MCP servers for web browsing, browser automation, and web scraping. Control Chrome, Playwright, Puppeteer, and crawl the web from your AI workflows. - [Databases](https://crossaitools.com/mcp/category/database): MCP servers for database access and management. Connect Claude to PostgreSQL, MySQL, MongoDB, Redis, Supabase, Firebase, and more. - [AI & LLM Tools](https://crossaitools.com/mcp/category/ai-agents): MCP servers for AI and LLM workflows. Build agents, run RAG pipelines, manage embeddings, and integrate with OpenAI, Anthropic, and other AI providers. - [Cloud & Infrastructure](https://crossaitools.com/mcp/category/cloud-infrastructure): MCP servers for cloud platforms and infrastructure management. Control AWS, Azure, GCP, Docker, Kubernetes, Terraform, and Cloudflare from your AI agent. - [Communication & Messaging](https://crossaitools.com/mcp/category/communication): MCP servers for messaging and communication platforms. Connect Claude to Slack, Discord, Gmail, Telegram, WhatsApp, and other messaging services. - [Developer Tools](https://crossaitools.com/mcp/category/developer-tools): MCP servers for developer tools and project management. Integrate Claude with GitHub, GitLab, Bitbucket, Jira, Linear, and other dev platforms. - [Design & Creative](https://crossaitools.com/mcp/category/design-creative): MCP servers for design and creative tools. Connect Claude to Figma, Blender, Unity, Godot, and other creative platforms for AI-assisted design workflows. - [Documents & Knowledge](https://crossaitools.com/mcp/category/documents-knowledge): MCP servers for document management and knowledge bases. Connect Claude to Obsidian, Notion, Confluence, PDF files, and other knowledge platforms. - [Search & Web Crawling](https://crossaitools.com/mcp/category/search): MCP servers for web search and crawling. Give Claude access to search engines, web crawlers, and content extraction tools like Exa, Tavily, and Crawl4AI. - [Automation & Workflows](https://crossaitools.com/mcp/category/automation): MCP servers for automation and workflow orchestration. Connect Claude to n8n, Zapier, cron jobs, and workflow engines to automate complex multi-step processes. - [Security & Pentesting](https://crossaitools.com/mcp/category/security): MCP servers for security analysis and penetration testing. Run vulnerability scans, static analysis, and security audits with Semgrep, Metasploit, and more. - [Monitoring & Observability](https://crossaitools.com/mcp/category/monitoring): MCP servers for monitoring, logging, and observability. Connect Claude to Sentry, log aggregators, APM tools, and analytics platforms. - [Data & Analytics](https://crossaitools.com/mcp/category/data-analytics): MCP servers for data analysis and business intelligence. Work with Excel, CSV, Jupyter notebooks, Google Analytics, and other data tools through Claude. - [Mobile Development](https://crossaitools.com/mcp/category/mobile): MCP servers for mobile development. Control iOS simulators, interact with Android devices via ADB, and automate mobile testing workflows. - [Finance & Commerce](https://crossaitools.com/mcp/category/finance-commerce): MCP servers for finance, e-commerce, and advertising platforms. Connect Claude to Stripe, Shopify, Facebook Ads, Salesforce, and other business tools. - [Media & Entertainment](https://crossaitools.com/mcp/category/media-entertainment): MCP servers for media platforms and creative tools. Connect Claude to YouTube, Spotify, Ableton, video editors, and other media services. - [Productivity & Office](https://crossaitools.com/mcp/category/productivity-tools): MCP servers for productivity tools and office applications. Connect Claude to calendar apps, note-taking tools, task managers, and office suites. - [Reverse Engineering](https://crossaitools.com/mcp/category/reverse-engineering): MCP servers for reverse engineering and binary analysis. Connect Claude to Ghidra, IDA Pro, debuggers, and other reverse engineering tools. ## Marketplace categories - [AI Agents & Orchestration](https://crossaitools.com/marketplaces/category/ai-agents): Discover Claude Code plugin marketplaces for AI agents and orchestration. Browse collections of multi-agent frameworks, autonomous agent tools, and agentic work - [LLM Integration](https://crossaitools.com/marketplaces/category/llm-integration): Claude Code plugin marketplaces for LLM integration. Browse collections of model provider connectors, RAG pipelines, embedding tools, and prompt engineering uti - [Development Tools](https://crossaitools.com/marketplaces/category/development): Browse Claude Code plugin marketplaces for development tools. Find collections of IDE integrations, SDKs, language tooling, and developer productivity plugins. - [Frontend & UI](https://crossaitools.com/marketplaces/category/frontend): Claude Code plugin marketplaces for frontend development. Browse collections of React, Vue, CSS, Tailwind, and component library plugins. - [Backend & APIs](https://crossaitools.com/marketplaces/category/backend-api): Browse Claude Code plugin marketplaces for backend development. Find collections of REST, GraphQL, Express, FastAPI, Django, and NestJS plugins. - [Databases](https://crossaitools.com/marketplaces/category/database): Claude Code plugin marketplaces for databases. Browse collections of SQL, PostgreSQL, MongoDB, Redis, Supabase, Firebase, and ORM plugins. - [Testing & Code Quality](https://crossaitools.com/marketplaces/category/testing-quality): Claude Code plugin marketplaces for testing and code quality. Find collections of test frameworks, linters, code review tools, and debugging plugins. - [DevOps & Cloud](https://crossaitools.com/marketplaces/category/devops-cloud): Browse Claude Code plugin marketplaces for DevOps and cloud infrastructure. Find collections of Docker, Kubernetes, Terraform, AWS, and CI/CD plugins. - [Security & Compliance](https://crossaitools.com/marketplaces/category/security): Claude Code plugin marketplaces for security and compliance. Discover collections of vulnerability scanners, authentication tools, encryption libraries, and com - [Git & Version Control](https://crossaitools.com/marketplaces/category/git-version-control): Browse Claude Code plugin marketplaces for Git and version control. Find collections of Git workflow tools, GitHub/GitLab integrations, and branching strategy p - [Documentation & Learning](https://crossaitools.com/marketplaces/category/documentation): Claude Code plugin marketplaces for documentation and learning. Discover collections of doc generators, README tools, wiki integrations, and tutorial builders. - [Productivity & Planning](https://crossaitools.com/marketplaces/category/productivity): Claude Code plugin marketplaces for productivity and planning. Find collections of task management, project planning, calendar, and organizational plugins. - [Memory & Context](https://crossaitools.com/marketplaces/category/memory-context): Claude Code plugin marketplaces for memory and context management. Browse collections of session persistence, knowledge graph, and long-term memory plugins. - [Web & Browser](https://crossaitools.com/marketplaces/category/web-browser): Claude Code plugin marketplaces for web and browser automation. Discover collections of Playwright, Puppeteer, web scraping, and headless browser plugins. - [Mobile Development](https://crossaitools.com/marketplaces/category/mobile): Browse Claude Code plugin marketplaces for mobile development. Find collections of iOS, Android, React Native, Flutter, and cross-platform mobile plugins. - [Design & Creative](https://crossaitools.com/marketplaces/category/design-creative): Claude Code plugin marketplaces for design and creative work. Browse collections of Figma integrations, animation tools, 3D/game development, and creative autom - [Communication](https://crossaitools.com/marketplaces/category/communication): Claude Code plugin marketplaces for communication. Discover collections of Slack, Discord, email, Telegram, and messaging integration plugins. - [Automation & Workflows](https://crossaitools.com/marketplaces/category/automation): Browse Claude Code plugin marketplaces for automation and workflows. Find collections of workflow automation, webhook, scheduler, and integration plugins. - [Business & Finance](https://crossaitools.com/marketplaces/category/business-finance): Claude Code plugin marketplaces for business and finance. Browse collections of marketing, SEO, CRM, payment processing, and e-commerce plugins. - [Sales & Marketing](https://crossaitools.com/marketplaces/category/sales-marketing): Claude Code plugin marketplaces for sales and marketing. Browse collections of CRM integrations, lead generation, outbound automation, and GTM workflow plugins. - [Blockchain & Web3](https://crossaitools.com/marketplaces/category/blockchain-web3): Claude Code plugin marketplaces for blockchain and Web3. Discover collections of Ethereum, Solidity, DeFi, smart contract, and crypto development plugins. - [Data & Analytics](https://crossaitools.com/marketplaces/category/data-analytics): Browse Claude Code plugin marketplaces for data and analytics. Find collections of dashboard tools, data visualization, ETL pipelines, and analytics plugins. - [MCP Servers](https://crossaitools.com/marketplaces/category/mcp-servers): Claude Code plugin marketplaces for MCP servers. Browse collections of Model Context Protocol servers, integrations, and tooling plugins. - [Scientific Research](https://crossaitools.com/marketplaces/category/scientific-research): Claude Code plugin marketplaces for scientific research. Discover collections of academic paper tools, citation managers, experiment tracking, and research auto - [Media & Audio/Video](https://crossaitools.com/marketplaces/category/media): Claude Code plugin marketplaces for media processing. Browse collections of audio, video, image, transcription, and podcast production plugins. ## Common questions answered on this site - What are Claude Code skills, plugins, and MCP servers? - How do I install a Claude Code skill? - How do I add a plugin marketplace to Claude Code? - What are the most popular Claude Code skills right now? - Which MCP servers work with Claude Code? - How do I publish my own Claude Code skill or marketplace? - How do I advertise to Claude Code developers? ## Other resources - [llms-full.txt](https://crossaitools.com/llms-full.txt): Long-form context file for AI systems. - [Sitemap](https://crossaitools.com/sitemap.xml): All indexable URLs, refreshed daily. - [robots.txt](https://crossaitools.com/robots.txt): Crawl rules. All major AI bots are allowed. - [Contact](mailto:hi@crossaitools.com): Email the maintainer.