116 documented

Skills · plugins · MCP · rules114 official

Which agent do you use?

Pick your host to see what plugs into it. Every entry is documented from its official repository or docs, with install steps, permissions and limits.

Claude Code84 extensions OpenAI Codex14 extensions

Cursor32 extensions Windsurf14 extensions

Gemini CLI9 extensions

GitHub Copilot1 extensions Any MCP client46 extensions

Skill · 19Reusable instructions and scripts the agent loads for a taskAlgorithmic Art, brand-guidelines, Canvas Design… Plugin · 42Bundles of skills, commands, hooks and agentsAgent SDK Development Plugin, C# LSP, clangd LSP… MCP server · 49Connect the agent to tools, data and servicesApify MCP Server, Atlassian Rovo MCP Server, AWS API MCP Server… Rules & instructions · 6Project instructions the agent reads every sessionAGENTS.md, CLAUDE.md, Cursor Rules…

MCP servers for Claude Code and Cursor Claude Code plugins and marketplace Claude Code skills Cursor rules What is an MCP server? A plain explanation for 2026

107 extensions · Clear filters

MCP server Apache-2.0

Supabase MCP Server

by Supabase Community

Connect Supabase projects to AI assistants to manage tables, fetch config and query data.

Does: 5 things
Install: 4 steps
Works with: 3 hosts

Plugin Apache-2.0

Swift LSP (SourceKit-LSP)

by Anthropic

Swift (SourceKit-LSP) language server for Claude Code: code intelligence and diagnostics for .swift files.

Does: 3 things
Install: 5 steps
Works with: Claude Code

MCP server MIT

Tavily MCP Server

by Tavily

Tavily MCP server: real-time web search, page extraction, site mapping and crawling for AI agents.

Does: 5 things
Install: 5 steps
Works with: 3 hosts

Skill

theme-factory

by Anthropic

Apply one of 10 preset font/colour themes (or a generated one) to slides, docs, reports or HTML pages.

Does: 4 things
Install: 4 steps
Works with: Claude Code

MCP server MIT

Time MCP Server

by Model Context Protocol

Reference MCP server for current time and timezone conversion using IANA timezone names.

Does: 4 things
Install: 4 steps
Works with: Any MCP client

Plugin Apache-2.0

TypeScript LSP

by Anthropic

TypeScript/JavaScript language server for Claude Code: code intelligence and diagnostics for .ts files.

Does: 3 things
Install: 4 steps
Works with: Claude Code

MCP server

Vercel MCP

by Vercel

Vercel's official remote MCP server: search docs, manage projects and deployments, read logs and Web Analytics from your AI tool.

Does: 5 things
Install: 4 steps
Works with: 6 hosts

Skill Apache-2.0

Web Artifacts Builder

by Anthropic

Scripts and guidance to build multi-component React artifacts and bundle them into a single HTML file.

Does: 5 things
Install: 4 steps
Works with: Claude Code

Skill

webapp-testing

by Anthropic

Toolkit for testing local web apps with Playwright: verify frontend behaviour, debug UI, capture screenshots and logs.

Does: 4 things
Install: 4 steps
Works with: Claude Code

Skill Proprietary (LICENSE.txt in skill folder

xlsx

by Anthropic

Open, create, edit and clean spreadsheets (.xlsx, .xlsm, .csv, .tsv) with formulas, formatting and charts.

Does: 3 things
Install: 4 steps
Works with: Claude Code

MCP server

Zapier MCP

by Zapier

Zapier-hosted MCP server that lets Claude, Cursor and other clients take actions across 9,000+ apps with managed auth.

Does: 5 things
Install: 5 steps
Works with: 3 hosts