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Universal Commerce Protocol (UCP) is an open standard designed to unify how platforms, businesses, and payment providers interact across the modern commerce ecosystem. It provides a common language that eliminates fragmented, custom integrations and enables seamless interoperability between diverse commerce systems. Built for an increasingly agentic web, UCP supports AI-driven platforms that can discover products, manage carts, and complete transactions securely on a user’s behalf. Its modular, capability-based architecture allows businesses to expose only what they support while remaining flexible and extensible. By leveraging existing industry standards for payments, identity, and security, UCP avoids reinventing the wheel while ensuring reliability and trust. The result is a developer-friendly, future-ready protocol that simplifies commerce integration at global scale.
Features
- Standardized capability model for checkout, orders, identity linking, and payments
- Dynamic discovery of supported commerce capabilities through declarative profiles
- Support for agentic commerce workflows with or without human intervention
- Transport-agnostic design compatible with REST APIs, MCP, and A2A
- Built-in support for modern security patterns, including OAuth 2.0 and verifiable credentials
- Open-source, extensible framework backed by comprehensive documentation and SDKs
Project Samples
