Ucp

A comprehensive implementation assistant for adding Universal Commerce Protocol support to Next.js ecommerce projects. It walks you through the full lifecycle: cloning the spec repo, running a 12-question consultation to configure your UCP implementation, analyzing existing APIs for gaps, scaffolding working handlers and routes, generating the discovery profile at /.well-known/ucp, and validating against schemas. Everything is config-driven through ucp.config.json, and it enforces Node.js or Bun runtimes only (no Edge). The gap analysis uses AST parsing to trace data flows, which is notably more thorough than basic grep patterns. If you're building checkout flows that need to interoperate with AI agents or payment platforms via REST, MCP, or A2A transports, this handles the tedious spec compliance work.