UCP (Universal Commerce Protocol) is an open standard to make commerce interoperable between platforms, AI agents, and merchants.

This repo curates: - the core UCP spec - SDKs and reference implementations - client/server examples - related protocols and tooling

If you’re building agentic shopping flows, commerce automation, or system-to-system checkout without one-off integrations, this is meant to save you time and reduce glue code.

Early ecosystem, contributions welcome.