Kroger MCP Server -- FastMCP for Kroger Shopping

A FastMCP server that provides AI assistants like Claude with access to Kroger's grocery shopping functionality through the Model Context Protocol (MCP). This server enables AI assistants to find stores, search products, manage shopping carts, and access Kroger's comprehensive grocery data via the kroger-api python library.

Demo

Using Claude with this MCP server to search for stores, find products, and add items to your cart:

https://github.com/user-attachments/assets/69055f5f-04f5-4ec1-96ac-330aa288fbd1

Changelog

A changelog with recent changes is here.

Quick Start

Prerequisites

You will need Kroger API credentials (free from Kroger Developer Portal). Visit the Kroger Developer Portal to:

1. Create a developer account
2. Register your application
3. Get your CLIENT_ID, CLIENT_SECRET, and set your REDIRECT_URI

The first time you run a tool requiring user authentication, you'll be prompted to authorize your app through your web browser. You're granting permission to your own registered app, not to any third party.

Installation

macOS users must use installation Option 2

Option 1: Using uvx with Claude Desktop (Recommended)

Once published to PyPI, you can use uvx to run the package directly without cloning the repository:

Edit Claude Desktop's configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

Linux: ~/.config/Claude/claude_desktop_config.json

Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "kroger": {
      "command": "uvx",
      "args": [
        "kroger-mcp"
      ],
      "env": {
        "KROGER_CLIENT_ID": "your_client_id",
        "KROGER_CLIENT_SECRET": "your_client_secret", 
        "KROGER_REDIRECT_URI": "http://localhost:8000/callback",
        "KROGER_USER_ZIP_CODE": "10001"
      }
    }
  }
}

Benefits of this method:

• Automatically installs the package from PyPI if needed
• Creates an isolated environment for running the server
• Makes it easy to stay updated with the latest version
• Doesn't require maintaining a local repository clone

Option 2: Using uv with a Local Clone

First, clone locally:

git clone https://github.com/CupOfOwls/kroger-mcp

Then, edit Claude Desktop's configuration file:

{
  "mcpServers": {
    "kroger": {
      "command": "uv",
      "args": [
        "--directory",
        "/path/to/cloned/kroger-mcp",
        "run",
        "kroger-mcp"
      ],
      "env": {
        "KROGER_CLIENT_ID": "your_client_id",
        "KROGER_CLIENT_SECRET": "your_client_secret", 
        "KROGER_REDIRECT_URI": "http://localhost:8000/callback",
        "KROGER_USER_ZIP_CODE": "10001"
      }
    }
  }
}

Option 3: Installing From PyPI

# Install with uv (recommended)
uv pip install kroger-mcp

# Or install with pip
pip install kroger-mcp

Option 4: Installing From Source

# Clone the repository
git clone https://github.com/CupOfOwls/kroger-mcp
cd kroger-mcp

# Install with uv (recommended)
uv sync

# Or install with pip
pip install -e .

Configuration

Create a .env file in your project root or pass in env values via the JSON config:

# Required: Your Kroger API credentials
KROGER_CLIENT_ID=your_client_id_here
KROGER_CLIENT_SECRET=your_client_secret_here
KROGER_REDIRECT_URI=http://localhost:8000/callback

# Optional: Default zip code for location searches
KROGER_USER_ZIP_CODE=90274

Running the Server

# With uv (recommended)
uv run kroger-mcp

# With uvx (directly from PyPI without installation)
uvx kroger-mcp

# Or with Python directly
python server.py

# With FastMCP CLI for development
fastmcp dev server.py --with-editable .

Features

Built-In MCP Prompts

• Shopping Path: Find optimal path through store for a grocery list
• Pharmacy Check: Check if pharmacy at preferred location is open
• Store Selection: Help user set their preferred Kroger store
• Recipe Shopping: Find recipes and add ingredients to cart

Available Tools

Location Tools

Product Tools

Cart Tools

Information Tools

| Tool | Description | Auth Required | |------|----------…