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Cap Js MCP Server

local only

Cap Js runs on your own machine — the client starts it, so there is no endpoint to ping. 74 107 installs a week from npm. Last commit 26 Oct 2026.

Model Context Protocol (MCP) server for AI-assisted development of CAP applications.

Installs per day peak 15 615 · avg 6 973 · +128% w/w
a month agotoday
74 107
Installs / week
npm · @cap-js/mcp-server
118
Stars
3 open issues
26 Oct 2026
Last commit
4 releases in 90 days
Apache-2.0
License
JavaScript

What the code does

We read the source, 6 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.

  return path.join(
    DEFAULT_DIR,
    modelFolder,

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 mcp-server -- npx -y @cap-js/mcp-server
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cap-js/mcp-server"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.mcp-server]
command = "npx"
args = ["-y", "@cap-js/mcp-server"]
.cursor/mcp.json
{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cap-js/mcp-server"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cap-js/mcp-server"
      ]
    }
  }
}

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Cap Js — questions

Answers built from our own checks of this server.

Why is there no uptime for Cap Js?
Cap Js 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 @cap-js/mcp-server was installed 74 107 times last week.
How do I connect Cap Js?
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 @cap-js/mcp-server straight from npm; nothing to host, nothing to sign up for.
How many people use Cap Js?
The npm package @cap-js/mcp-server was installed 74 107 times in the last week. Week over week that is +128%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Cap Js open source?
Yes — it is published under the Apache-2.0 licence, written in JavaScript, 118 stars on GitHub and 3 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.