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Cortexcn MCP server

The whole library,
inside your AI editor.

Connect Claude Code, Cursor, VS Code, or another assistant once. Then ask for a component in plain words, and your assistant finds it, reads its docs, and installs the source into your project.

Install the MCP serverRead the reference
URLhttps://ui.cortexcn.dev/mcp

Works with

  • Claude Code
  • Cursor
  • VS Code
  • Windsurf
  • Codex CLI
  • Claude Desktop

  1. 1Connect once

    $ claude mcp add --transport http cortexcn https://ui.cortexcn.dev/mcp

  2. 2Ask in plain words

    Add a hero with a product screenshot to the landing page.

  3. 3It installs the source

    • search_items"hero with product screenshot"
    • get_item"hero-cover-01"
    • Bashnpx shadcn@latest add https://ui.cortexcn.dev/r/hero-cover-01.json

What is MCP?

MCP, the Model Context Protocol, is an open standard that lets AI assistants use tools from outside services. An assistant that supports it can call those tools in the middle of a conversation, the way it reads a file or runs a command.

The Cortexcn MCP server gives your assistant read-only tools over the Cortexcn registry. It can search for components and blocks, read an item's docs and source, and get the command that installs it.

How it helps

  • Finds the right piece

    Describe what you need, and it searches components and blocks by name or by what they do.

  • Reads before it installs

    It sees each item's license, revision, files, and npm packages, so you can review the change first.

  • Installs the source

    It gets the exact shadcn command, your assistant runs it, and the files land in your repo.

  • Keeps your style

    It reads Cortexcn's DESIGN.md, so new code follows the same tokens as the rest of your UI.

  • HostedNothing to install or run
  • Read-onlyIt never writes files or runs commands
  • No sign-inOne URL for every client
  • Fair use120 requests a minute per IP

Install the MCP server

Pick your assistant. Every client connects to the same URL, and there is nothing to sign in to.

Run this in your terminal:

claude mcp add --transport http cortexcn https://ui.cortexcn.dev/mcp

Add --scope user to use it in every project. Run /mcp inside Claude Code to check that it is connected.

Using Zed, ChatGPT, or another client? The MCP reference covers them all.

Then ask for what you need

Your project needs shadcn set up first. If there is no components.json in its root, run npx shadcn@latest init.

  • "Find a hero block with a product screenshot and add it to the landing page."

  • "Add the feature-bento-grid-01 block under the hero."

  • "What props does the Cortexcn dialog take?"

  • "Show me the source of hero-cover-01 before we install it."

Every tool, limit, and client

The reference covers the eight tools, the rate limits, and setup for Zed, ChatGPT, and more.

Read the referenceInstall with the CLI