# Chess4pro auth.md

## Overview
Authentication and authorization guide for autonomous AI agents, personal shoppers, and programmatic callers interacting with Chess4pro.

## Agent Audience
This service supports autonomous commerce agents adhering to the Universal Commerce Protocol (UCP), Agentic Commerce Protocol (ACP), and Model Context Protocol (MCP).

## OAuth Protected Resource Metadata
- Resource: https://chess4pro.online
- Authorization Server: https://chess4pro.online/.well-known/oauth-authorization-server
- Scopes Supported: read_products, read_content, create_cart, checkout
- Bearer Methods Supported: header

## Flow Metadata
- Identity Types Supported: ["anonymous", "identity_assertion"]
- Assertion Types Supported: ["verified_email", "urn:ietf:params:oauth:token-type:id-jag"]
- Registration URI: https://chess4pro.online/api/ucp/mcp
- Credential Types: Bearer tokens and Shop Pay delegations

## Commerce Endpoints
- UCP Discovery: https://chess4pro.online/.well-known/ucp
- MCP Endpoint: https://chess4pro.online/api/ucp/mcp
- Agents Specification: https://chess4pro.online/agents.md