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Open MCP Apps MCP Server

local only

Open MCP Apps runs on your own machine — the client starts it, so there is no endpoint to ping. 132 installs a week from npm. Last commit 16 Oct 2026.

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

Installs per day peak 354 · avg 35 · -70% w/w
a month agotoday
132
Installs / week
npm · @2nd1st/open-mcp-apps
36
Stars
0 open issues
16 Oct 2026
Last commit
13 releases in 90 days
MIT
License
JavaScript

What the code does

We read the source, 2 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

    if (wrap.isConnected) { wrap.innerHTML = skel(); delete wrap.dataset.live; }

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add open-mcp-apps -- npx -y @2nd1st/open-mcp-apps
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.open-mcp-apps]
command = "npx"
args = ["-y", "@2nd1st/open-mcp-apps"]
.cursor/mcp.json
{
  "mcpServers": {
    "open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "open-mcp-apps": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block 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).

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Open MCP Apps — questions

Answers built from our own checks of this server.

Why is there no uptime for Open MCP Apps?
Open MCP Apps runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @2nd1st/open-mcp-apps was installed 132 times last week.
How do I connect Open MCP Apps?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @2nd1st/open-mcp-apps straight from npm; nothing to host, nothing to sign up for.
How many people use Open MCP Apps?
The npm package @2nd1st/open-mcp-apps was installed 132 times in the last week. Week over week that is -70%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Open MCP Apps open source?
Yes — it is published under the MIT licence, written in JavaScript and 36 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.