This MCP server exposes the Shopify Storefront API to MCP-powered AI assistants, enabling them to discover Shopify storefronts and interact with store data through a unified interface. It provides access to product listings, collections, and inventory, and supports cart creation and management. The server accepts GraphQL queries and mutations against the Storefront API, with automatic token handling and validation to ease authentication. It includes MCP tools such as shopify_discover (detects whether a URL is a Shopify storefront and reveals authentication tokens), shopify_storefront_graphql (executes GraphQL queries), and customer_data (a unified interface for create, read, update, and delete operations on customer information). Customer data can be stored locally in user_data/customer.json, with an example template provided as customer.json.example; data persists across restarts. The README also demonstrates workflows for creating checkouts using customer data and GraphQL mutations. Environment configuration is via a .env file (required token and store name, optional API version and buyer IP). Security considerations include not committing secrets and using environment variables, along with guidance on token generation and troubleshooting.