ACP Capability Negotiation

Before writing code

Fetch live docs:

1. Web-search site:github.com agentic-commerce-protocol rfcs capability_negotiation for the capability negotiation RFC
2. Fetch https://developers.openai.com/commerce/specs/checkout/ for how capabilities appear in checkout requests/responses
3. Web-search site:github.com agentic-commerce-protocol spec json-schema capabilities for the capabilities JSON schema

Conceptual Architecture

What Capability Negotiation Does

ACP agents and merchants may support different features. Capability negotiation allows them to dynamically discover what they both support, so the session uses only mutually available features.

How It Works