Agentic Commerce MCP Demo (Goose + MCP UI)

A small Model Context Protocol (MCP) server that showcases agentic commerce UX using MCP UI blocks inside Goose. It returns rich, interactive HTML UI for a simple “find restaurants → view menu → fake order → receipt” flow.

Important notes:

• Demo only. No real sellers, data, payments, or money movement. Everything is synthetic or mocked.

• Not production code. This exists to demonstrate how MCP UI can drive a click-first agent experience.

Features

• Streamable HTTP MCP server with multiple tools:

  • find_restaurants – search nearby synthetic restaurants by city/state and query

  • view_restaurant – details card for a restaurant

  • view_menu – menu with images and pricing (mock catalog if “Square” is detected; otherwise a generic menu fallback)

  • order_takeout – interactive order page (edit quantities, remove items)

  • view_receipt – playful, fake receipt

• Click-first MCP UI: UI dispatches tool calls back to the agent on user actions.

• Dev HTML previews for local testing at http://127.0.0.1:8000/dev

• Large, synthetic dataset you can regenerate via scripts

What this is not

• No live Square API calls, no money movement, no real sellers or PII

• No persistent storage; no auth; no production hardening

Repo layout

• src/server.ts – MCP server with tools that render UI

• src/ui/* – HTML shell, styles, and view builders

• src/lib/restaurants.ts – local search over synthetic sellers + geocoding via OpenStreetMap Nominatim

• src/lib/square.ts – tiny mock for “Square detection” and sample catalogs

• src/data/* – generated JSON for restaurants and category menus

• src/scripts/* – generators for the data above

• scenarios.md – example conversational flows and UX notes

Prerequisites

• Node.js 20+

• pnpm (bundled with Node) or ppnpm/yarn

Setup

1. Install dependencies

2. Generate demo data (optional; the repo includes prebuilt JSON)

3. Run the MCP server (dev)

Environment variables you can set:

• MCP_HOST (default: 127.0.0.1)

• MCP_PORT (default: 8000)

• MCP_GEOCODE_USERAGENT (default: "mcp-agentic-commerce/1.0 (+https://squareup.com)")

4. Try the local UI previews in a browser

• http://127.0.0.1:8000/dev

• Example: http://127.0.0.1:8000/dev/restaurants?city=Austin&state=TX&query=bbq

Use with Goose

This project is designed to be consumed as an MCP extension by Goose.

Option A — Add manually in Goose settings:

• Open Goose Desktop → Settings → Extensions → Add MCP server

• Type: HTTP (streamable)

• URL: http://127.0.0.1:8000/mcp

• Name: Agentic Commerce MCP Demo

• Save. Start a new chat and ask something like:

  • “Find coffee around Austin”

  • “Show pizza near Toronto”

  • “Order two lattes from Midtown Bean at 9:15 under Sam.”

Option B — Use the MCP Inspector (handy for testing tools and UI):

Tip: If your model/agent supports MCP UI, it will render the HTML cards, menus, and receipts inline and dispatch tool calls on button clicks.

Tool reference

• find_restaurants

  • args: city (string, default "Austin"), state (optional), query (optional), limit (1..25, default 10)

  • returns: UI list of nearby sellers; buttons to “Details” and “Order Now”

• view_restaurant

  • args: business_id (string)

  • returns: UI card with address, hours, phone, website; CTA buttons

• view_menu

  • args: business_id (string)

  • behavior: if mock "Square" is detected -> use mock catalog; else generic menu by primary category

• order_takeout

  • args: business_id (string), items (array of { name, qty, price })

  • returns: interactive order table with totals and a Place Order button

• view_receipt

  • args: business_id (string), items (same as above)

  • returns: playful demo receipt UI

Data notes

• Restaurants are synthetic and based on seeded generators across many US/CA cities. You can regenerate or reduce the dataset density via env vars on the generator script.

• Menu images are hotlinked from Unsplash and used only for illustrative purposes in this demo.

Safety and disclaimers

• For demonstration only; do not treat any information as factual.

• No money movement occurs. The “Place order” flow only renders a confirmation UI.

Deployment

Deploy to Netlify

This project is configured to deploy as a serverless function on Netlify:

1. Connect to Netlify:

   • Go to Netlify

   • Click "Add new site" → "Import an existing project"

   • Connect your GitHub repository

2. Build Settings (auto-detected from netlify.toml):

   • Build command: pnpm run build

   • Publish directory: dist

3. Deploy:

   • Netlify will automatically deploy on push to main

   • Your MCP server will be available at: https://your-site-name.netlify.app/mcp

   • Dev preview available at: https://your-site-name.netlify.app/dev

4. Use with Goose (Production):

   • Once deployed, use your Netlify URL in Goose settings

   • Type: HTTP (streamable)

   • URL: https://your-site-name.netlify.app/mcp

License

This project is licensed under the MIT License - see the LICENSE file for details.