@firfi/voila-mcp

Voila MCP server for safe personal grocery search, cart, slots, and order-history workflows. The server exposes small auditable tools and does not expose checkout or order placement.

Configuration

The server reads configuration from environment variables:

• VOILA_AUTH_SESSION_PATH: path to an SDK session snapshot JSON file.
• VOILA_SESSION_WRITE_PATH: optional path for updated session snapshots. Defaults to VOILA_AUTH_SESSION_PATH.
• VOILA_GUEST=1: force guest-session behavior.
• MCP_TRANSPORT: stdio by default, or http.
• MCP_HTTP_HOST: HTTP bind host. Defaults to 127.0.0.1.
• MCP_HTTP_PORT / PORT: HTTP port. Defaults to 3000.
• MCP_HTTP_PATH: HTTP MCP path. Defaults to /mcp.

If a tool runs with a guest, expired, missing, or unreadable account session, the tool result includes authGuidance with the CLI command to run. The MCP server does not launch a browser; run the command, log in in Chromium, close the browser window to save, then retry the MCP request.

Client Example

{
  "mcpServers": {
    "voila": {
      "command": "npx",
      "args": ["-y", "@firfi/voila-mcp"],
      "env": {
        "VOILA_AUTH_SESSION_PATH": "/absolute/path/to/session.json"
      }
    }
  }
}

HTTP / Glama

HTTP transport is intended for registry inspection and deployments behind a trusted gateway:

MCP_TRANSPORT=http MCP_HTTP_HOST=0.0.0.0 PORT=8080 VOILA_GUEST=1 npx -y @firfi/voila-mcp

VOILA_GUEST=1 lets Glama start the server and inspect tool definitions without a user browser session or account credentials. Do not expose HTTP with a real session file directly to the public internet; put authentication and access control in front of /mcp.

Tools

• voila_check_session_health
• voila_get_active_shopping_context
• voila_get_slot_listings
• voila_reserve_slot
• voila_search_products
• voila_get_category_products
• voila_get_discounted_products
• voila_get_completed_orders
• voila_get_order_details
• voila_get_completed_order_items
• voila_get_cart
• voila_add_cart_items
• voila_remove_cart_items

voila_get_active_shopping_context and voila_get_slot_listings are the preferred first steps for planning an order because product pricing and availability depend on delivery context. Product-first search remains available.

voila_reserve_slot mutates the active session and requires explicit confirmation flags from the caller.

voila_get_completed_orders reads completed orders with cursor pagination. It does not expose reorder, checkout, or order placement.

voila_get_order_details reads item-level details for one completed order, including received, substituted, missing, returned, and at-risk item groups when Voila returns them.

voila_get_completed_order_items aggregates received items across completed orders, optionally filtered by fromDate and toDate, so a client can answer questions such as what the user ordered last month.

The server does not expose checkout or order-placement tools.