AP2 Credentials Provider Implementation

Before writing code

Fetch live docs:

1. Fetch https://ap2-protocol.org/specification/ for Credentials Provider responsibilities
2. Web-search site:github.com google-agentic-commerce AP2 samples roles credentials_provider for reference implementation
3. Web-search site:github.com google-agentic-commerce AP2 credentials provider tokenization DPAN for tokenization details
4. Fetch https://ap2-protocol.org/topics/privacy-and-security/ for security requirements

Conceptual Architecture

What the Credentials Provider Does

The Credentials Provider (CP) is the payment credentials custodian — a digital wallet that securely manages payment methods and handles tokenization: