Related Protocols

Anthropic's open protocol for connecting AI models to external data sources and tools, complementary to UCP.

Google's open protocol for agent-to-agent communication, used alongside UCP for multi-agent commerce orchestration.

Google's secure payment authorization protocol for AI agents, providing cryptographic consent for UCP transactions.

Open standard for AI-native commerce, complementary to UCP, with a focus on high-level commerce action orchestration.