Installation

Install globally

npm install -g @nimblebrain/mpak

Verify the installation:

mpak --version

Requirements

• Node.js 22+ - The CLI is built on Node.js
• Python 3.10+ - Required to run Python-based MCP servers
• Platform - macOS, Linux, or Windows

Alternative: Use without installing

Run commands directly with npx:

npx @nimblebrain/mpak bundle search echo
npx @nimblebrain/mpak bundle run @nimblebraininc/echo

This downloads the CLI on first use and caches it locally.

Configuration

The CLI stores configuration in ~/.mpak/config.json:

{
  "version": "1.0.0",
  "lastUpdated": "2025-01-01T00:00:00.000Z",
  "registryUrl": "https://registry.mpak.dev"
}

Environment Variables

Variable	Description	Default
MPAK_REGISTRY_URL	Override the registry API URL	https://registry.mpak.dev

Cache Location

Downloaded bundles are cached in ~/.mpak/cache/. To clear the cache:

rm -rf ~/.mpak/cache

Next Steps

Search Find bundles in the registry

Run Run MCP servers directly