Just MCP

Name: Just MCP
Availability: InStock
Author: promptexecution

Supports UI

by promptexecution

Production-ready MCP server for the Just command runner, allowing AI assistants to discover and execute Justfile recipes.

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Works in:Cursor

Exposes:Tools

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What it does

Just MCP provides a seamless bridge between AI assistants and the Just command runner. It abstracts complex shell commands into a set of discoverable recipes defined in a Justfile, preventing LLMs from needing to parse raw shell scripts or risk hallucinating complex bash sequences.

Tools

list_recipes: Lists all available recipes in the Justfile.
run_recipe: Executes a specific recipe with optional arguments.
get_recipe_info: Provides detailed information and documentation for a specific recipe.
validate_justfile: Checks the Justfile for syntax and semantic errors.

Installation

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "just-mcp": {
      "command": "npx",
      "args": ["-y", "just-mcp", "--stdio"]
    }
  }
}

Supported hosts

Confirmed for Claude Desktop, Cursor, and general MCP-compatible clients.

Quick install

npx -y just-mcp --stdio

Information

Pricing: free
Published: 4/26/2026
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Related Apps

Choose your AI client and follow the steps below.

Cursor

Add to mcp.json: { "name": "just-mcp", "command": "npx", "args": ["-y", "just-mcp", "--stdio"] }

Claude Desktop

{
  "mcpServers": {
    "just-mcp": {
      "command": "npx",
      "args": ["-y", "just-mcp", "--stdio"]
    }
  }
}