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feat: Add MCP (Model Context Protocol) sample implementation #2

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41 changes: 39 additions & 2 deletions README.md
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Expand Up @@ -21,7 +21,9 @@ Universal Commerce Protocol (UCP).

## Sample Implementations

### Python
### REST Bindings

#### Python (REST)

A reference implementation of a UCP Merchant Server using Python and FastAPI.

Expand All @@ -39,7 +41,7 @@ A reference implementation of a UCP Merchant Server using Python and FastAPI.
* A script demonstrating a full "happy path" user journey (discovery ->
checkout -> payment).

### Node.js
#### Node.js (REST)

A reference implementation of a UCP Merchant Server using Node.js, Hono, and
Zod.
Expand All @@ -49,6 +51,41 @@ Zod.
* Demonstrates implementation of UCP specifications for shopping,
checkout, and order management using a Node.js stack.

### MCP Binding (Model Context Protocol)

A reference implementation using the [Model Context Protocol](https://modelcontextprotocol.io/)
for AI agent integration.

* **Server & Client**: [Documentation](mcp/python/README.md)

* Located in `mcp/python/`.
* Exposes UCP shopping capabilities as MCP tools and resources.
* Enables AI agents (Claude, GPT, etc.) to perform commerce operations.
* Includes example client demonstrating complete shopping flow.

**Key Features:**
* Tools for product discovery, checkout, payment, and order management
* Resources for read-only access to catalogs, sessions, and orders
* Prompts for reusable conversation patterns
* Support for stdio, HTTP, and SSE transports

### A2A Binding (Agent-to-Agent)

An example Business A2A Agent implementing the UCP Extension.

* **Agent & Client**: [Documentation](a2a/README.md)
* Located in `a2a/`.
* Demonstrates agent-to-agent communication for commerce operations.
* Includes chat client for interactive testing.

## Protocol Binding Comparison

| Binding | Use Case | Transport | Best For |
|---------|----------|-----------|----------|
| REST | Traditional APIs | HTTP | Web/mobile apps, service integration |
| MCP | AI Agents | stdio/HTTP/SSE | LLM integration, conversational commerce |
| A2A | Agent Communication | HTTP | Multi-agent systems, automated workflows |

## Getting Started

Please refer to the specific README files linked above for detailed instructions
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