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AP2 is a project released by Google’s “Agentic Commerce” initiative, focusing on a protocol and reference implementation for agent-driven or AI-mediated payments. In effect, AP2 aims to define a secure, interoperable protocol that allows software agents to act on behalf of users—making payments or shopping decisions autonomously—while preserving necessary security, auditability, and trust. The repository contains sample scenarios (in Python, Android, etc.) that illustrate how agents, servers, and payments flows would work under the protocol. It includes “types” definitions (the core message and object schema) and example agent implementations to demonstrate the mechanics of agent-to-agent and agent-to-server interactions. The design emphasizes flexibility: although their samples use a particular Agent Development Kit (ADK) or runtime, the protocol is intended to be independent of those choices.
Features
- Defines a core set of protocol types / data models for AP2, via ap2/types to represent payments, agent actions etc.
- Sample / demo scenarios in Python and Android showing how agents and servers can be built to implement the protocol
- Run-scripts (run.sh) in each scenario to help spin up local agents / server for demos
- Quickstart with environment setup (Python 3.10+, API key from Google AI Studio) to get scenarios running locally
- Modular “types” package which can be installed (via pip) directly from the GitHub repo, with plans for PyPI publishing
- License is Apache-2.0; repository has documentation, samples, scripts; versioning (latest release v0.1.0 as of Sept 2025) etc.
Project Samples
