Open Mcp Apps

MCP server · by 2nd1st

Developer Tools npm v0.5.9

Persistent, interactive MCP Apps — the AI builds an app once, you both reuse it

View source ↗ Website ↗ Generate config for multiple servers More servers

Install

Pin version registry version 0.5.9

npm
npx -y @2nd1st/open-mcp-apps

npm
npx -y @2nd1st/open-mcp-apps@0.5.9

Setup by client

Pick your client — the config below is generated for this server (local stdio). Copy respects the “Pin version” switch above.

claude_desktop_config.json

{
  "mcpServers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps"
      ]
    }
  }
}

{
  "mcpServers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps@0.5.9"
      ]
    }
  }
}

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add open-mcp-apps -- npx -y @2nd1st/open-mcp-apps

claude mcp add open-mcp-apps -- npx -y @2nd1st/open-mcp-apps@0.5.9

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json

{
  "mcpServers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps"
      ]
    }
  }
}

{
  "mcpServers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps@0.5.9"
      ]
    }
  }
}

Format verified against the official Cursor docs ↗.

.vscode/mcp.json

{
  "servers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps"
      ]
    }
  }
}

{
  "servers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps@0.5.9"
      ]
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json

{
  "mcpServers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps"
      ]
    }
  }
}

{
  "mcpServers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps@0.5.9"
      ]
    }
  }
}

Format verified against the official Windsurf docs ↗.

Environment variables

Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.

OMA_DB — Path to the SQLite store. Defaults to a fixed per-user data directory; set this to isolate a store.
OMA_VIEWER — Browser viewer on loopback. On by default; set to 0 to turn it off.
OMA_DYNAMIC_TOOLS — Set to 1 to also expose one open_<name> tool per saved app. Off by default, because it costs prompt cache.

GitHub

⭐ 35 stars · 最近更新于 17 天前 · MIT license

About this server

open mcp apps English 简体中文 Give your AI a persistent, reusable UI. It builds the app once — you keep it forever. open mcp apps is an open engine built on MCP Apps ( ui:// , io.modelcontextprotocol/ui ) — an extension to the core Model Context Protocol specification, and the first official one, live…

Summary from the project README — github.com/2nd1st/open-mcp-apps

Distributed as npm, listed under Developer Tools. Review our MCP security guide before granting access to real data.

Frequently asked questions

What does the Open Mcp Apps MCP server do?

How do I install Open Mcp Apps?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is Open Mcp Apps free to use?

The MCP server itself is free to install. The source is public on https://github.com/2nd1st/open-mcp-apps. Any third-party service it calls may require its own API key and account.

Which clients support Open Mcp Apps?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

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