Plugin Apache-2.0
code-simplifier
por Anthropic
Agent that simplifies code for clarity and maintainability while preserving behaviour.
- Faz
- 3 coisas
- Instalar
- 4 etapas
- Funciona com
- Claude Code
Skills · plugins · MCP · regras114 oficial
MCP servers, skills, plugins and rules for AI coding agents
Extensions are the things you plug into an AI coding agent: MCP servers that give it tools and data, skills and plugins that package workflows, and rules files that set how it should behave in a repository. This index covers 116 of them, each documented from its official repository or docs, with install steps, the permissions it asks for, and known limits.
Pick your host above to see what works with it: Claude Code has the widest set (84), followed by Cursor (32), Windsurf and OpenAI Codex (14 each) and Gemini CLI (9). MCP servers marked "any MCP client" run in all of them.
Claude Code84 extensões
OpenAI Codex14 extensões
Cursor32 extensões
Windsurf14 extensões
Gemini CLI9 extensões
GitHub Copilot1 extensões
Any MCP client46 extensões
Skill · 19Instruções e scripts reutilizáveis que o agente carrega para uma tarefaAlgorithmic Art, brand-guidelines, Canvas Design…
Plugin · 42Pacotes de skills, comandos, hooks e agentesAgent SDK Development Plugin, C# LSP, clangd LSP…
MCP server · 49Conecte o agente a ferramentas, dados e serviçosApify MCP Server, Atlassian Rovo MCP Server, AWS API MCP Server…
Rules & instructions · 6Instruções do projeto que o agente lê a cada sessãoAGENTS.md, CLAUDE.md, Cursor Rules…
116 extensões
Servidor MCP Apache-2.0
Codex MCP configuration
por OpenAI
How OpenAI Codex connects to MCP servers via codex mcp add or [mcp_servers] tables in config.toml, for CLI and IDE.
- Faz
- 5 coisas
- Instalar
- 5 etapas
- Funciona com
- OpenAI Codex
Plugin Apache-2.0
commit-commands
por Anthropic
Slash commands for git commit, push and PR creation in one step.
- Faz
- 4 coisas
- Instalar
- 4 etapas
- Funciona com
- Claude Code
Servidor MCP MIT
Context7 MCP
por Upstash
Upstash's MCP server that injects up-to-date, version-specific library docs and code examples into your prompt.
- Faz
- 5 coisas
- Instalar
- 5 etapas
- Funciona com
- 3 hosts
Cursor MCP
por Cursor (Anysphere)
Connect Cursor to external tools and data via MCP servers configured in mcp.json or installed from the Cursor Marketplace.
- Faz
- 4 coisas
- Instalar
- 4 etapas
- Funciona com
- Cursor
Cursor Plugins and Marketplace
por Cursor (Anysphere)
Cursor Plugins bundle skills, MCP servers, rules, agents, commands and hooks; official ones are listed in the Cursor Marketplace.
- Faz
- 5 coisas
- Instalar
- 4 etapas
- Funciona com
- Cursor
Cursor Rules
por Cursor (Anysphere)
Persistent prompt-level instructions for Cursor Agent: project .mdc rules, user rules, team rules and AGENTS.md.
- Faz
- 4 coisas
- Instalar
- 4 etapas
- Funciona com
- Cursor
Plugin Apache-2.0
CWC Makers
por Anthropic
One-command onboarding for the Code-with-Claude Makers M5Stack Cardputer kit: clone, flash, install apps.
- Faz
- 6 coisas
- Instalar
- 4 etapas
- Funciona com
- Claude Code
Skill Apache-2.0
Discernment Nudge
por Anthropic
Appends 2-3 short follow-up questions to substantive answers so users check facts, reasoning and missing context.
- Faz
- 5 coisas
- Instalar
- 4 etapas
- Funciona com
- Claude Code
doc-coauthoring
por Anthropic
Structured workflow for co-authoring docs, proposals, specs and decision docs with context gathering, refinement and reader testing.
- Faz
- 4 coisas
- Instalar
- 4 etapas
- Funciona com
- Claude Code
Servidor MCP MIT
Docker MCP Toolkit and MCP Gateway
por Docker
Docker's MCP Toolkit and gateway: run catalog MCP servers in isolated containers and expose them to any client through one endpoint.
- Faz
- 6 coisas
- Instalar
- 5 etapas
- Funciona com
- 3 hosts
document-skills
por Anthropic
Collection of document skills: Excel, Word, PowerPoint and PDF.
- Faz
- 3 coisas
- Instalar
- 4 etapas
- Funciona com
- Claude Code
Servidor MCP Apache-2.0
Elasticsearch MCP Server (deprecated)
por Elastic
Elastic's MCP server for querying Elasticsearch indices in natural language; deprecated in favor of Elastic Agent Builder MCP.
- Faz
- 4 coisas
- Instalar
- 5 etapas
- Funciona com
- Any MCP client
Servidor MCP MIT
Everything MCP Server
por Model Context Protocol
Reference test MCP server that exercises prompts, resources, tools and sampling, for people building MCP clients.
- Faz
- 3 coisas
- Instalar
- 4 etapas
- Funciona com
- Any MCP client
Servidor MCP MIT
Exa MCP Server
por Exa Labs
Hosted Exa MCP server giving AI agents web search, page fetching and multi-step research.
- Faz
- 5 coisas
- Instalar
- 5 etapas
- Funciona com
- 6 hosts
Plugin Apache-2.0
Example Plugin
por Anthropic
Reference plugin showing skills, legacy commands and MCP server config for Claude Code plugin authors.
- Faz
- 4 coisas
- Instalar
- 3 etapas
- Funciona com
- Claude Code
example-skills
por Anthropic
Collection of example skills: skill-creator, MCP builder, design, algorithmic art, comms, web testing, artifacts, Slack GIFs, themes.
- Faz
- 3 coisas
- Instalar
- 4 etapas
- Funciona com
- Claude Code
Plugin Apache-2.0
explanatory-output-style
por Anthropic
SessionStart hook adding educational insights on implementation choices (replaces deprecated output style).
- Faz
- 3 coisas
- Instalar
- 4 etapas
- Funciona com
- Claude Code
Plugin Apache-2.0
feature-dev
por Anthropic
7-phase guided feature development workflow with exploration, architecture and review agents.
- Faz
- 4 coisas
- Instalar
- 4 etapas
- Funciona com
- Claude Code
Servidor MCP MIT
Fetch MCP Server
por Model Context Protocol
Reference MCP server that fetches a URL and returns its content as markdown, in chunks, for LLM use.
- Faz
- 5 coisas
- Instalar
- 4 etapas
- Funciona com
- Any MCP client
Figma MCP Server
por Figma
Figma's MCP server (remote or desktop) to get design context, generate code from frames and write to the canvas.
- Faz
- 6 coisas
- Instalar
- 4 etapas
- Funciona com
- 5 hosts
Servidor MCP MIT
Filesystem MCP Server
por Model Context Protocol
Reference MCP server for reading, writing, searching and moving files inside directories you explicitly allow.
- Faz
- 6 coisas
- Instalar
- 4 etapas
- Funciona com
- Any MCP client
Servidor MCP MIT
Firecrawl MCP Server
por Firecrawl
Firecrawl's MCP server to search, scrape, crawl and interact with the live web, hosted or self-run.
- Faz
- 5 coisas
- Instalar
- 4 etapas
- Funciona com
- Any MCP client
What is in the index
49 MCP servers, 42 plugins, 19 skills and 6 rules files. Each entry records the author (official vendor or community), the hosts it supports, the transport and authentication it needs, and whether it is maintained or deprecated.
MCP servers, skills, plugins and rules: the difference
An MCP server exposes tools and data over the Model Context Protocol and works in any host that speaks it. A skill or plugin is host-specific and bundles prompts, commands and sometimes an MCP server. A rules file (CLAUDE.md, AGENTS.md, .cursor/rules) is plain text the agent reads before working. The explainer on what an MCP server is goes deeper.
How entries are checked
We read the README, the install instructions and the permission list in the official repository and record them as stated. Deprecated or archived repositories are labelled. Community entries are marked as such and are not endorsed.
FAQ
Which hosts are covered?
Claude Code, Cursor, Windsurf, OpenAI Codex, Gemini CLI and GitHub Copilot, plus MCP servers that work in any MCP client.
Are these official?
Each entry says who published it. 114 of 116 come from the vendor or the official project; community entries are labelled.
Do I need an API key?
It depends on the extension. The entry lists the authentication it requires, such as an API key, OAuth or none.
How do I install an MCP server?
Each entry shows the install step for its hosts. The MCP servers hub has a comparison table by transport, auth and host.