
AP2
Building a Secure and Interoperable Future for AI-Driven Payments.
Stars: 948

The Agent Payments Protocol (AP2) repository contains code samples and demos showcasing the protocol. It includes curated scenarios demonstrating key components, utilizing the Agent Development Kit (ADK) and Gemini 2.5 Flash. Users are free to use any tools to build agents. The repository features various agents and servers, with source code located in specific directories. Users can run scenarios by following README instructions and using run scripts. Additionally, the repository provides guidance on setting up prerequisites, obtaining a Google API key, and installing the AP2 types package.
README:
This repository contains code samples and demos of the Agent Payments Protocol.
These samples use Agent Development Kit (ADK) and Gemini 2.5 Flash.
The Agent Payments Protocol doesn't require the use of either. While these were used in the samples, you're free to use any tools you prefer to build your agents.
The samples
directory contains a collection of curated scenarios meant to
demonstrate the key components of the Agent Payments Protocol.
The scenarios can be found in the samples/android/scenarios
and samples/python/scenarios
directories.
Each scenario contains:
- a
README.md
file describing the scenario and instructions for running it. - a
run.sh
script to simplify the process of running the scenario locally.
This demonstration features various agents and servers, with most source code
located in samples/python/src
. Scenarios that use an Android app as the
shopping assistant have their source code in samples/android
.
- Python 3.10 or higher
Ensure you have obtained a Google API key from
Google AI Studio. Then declare the
GOOGLE_API_KEY
variable in one of two ways.
-
Declare it as an environment variable:
export GOOGLE_API_KEY=your_key
-
Put it into an
.env
file at the root of your repository.echo "GOOGLE_API_KEY=your_key" > .env
To run a specific scenario, follow the instructions in its README.md
. It will
generally follow this pattern:
-
Navigate to the root of the repository.
cd AP2
-
Run the run script to install dependencies & start the agents.
bash samples/python/scenarios/your-scenario-name/run.sh
-
Navigate to the Shopping Agent URL and begin engaging.
The protocol's core objects are defined in the src/ap2/types
directory. A PyPI package will be published at a later time. Until then, you can
install the types package directly using this command:
uv pip install git+https://github.com/google-agentic-commerce/AP2.git@main
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The Agent Payments Protocol (AP2) repository contains code samples and demos showcasing the protocol. It includes curated scenarios demonstrating key components, utilizing the Agent Development Kit (ADK) and Gemini 2.5 Flash. Users are free to use any tools to build agents. The repository features various agents and servers, with source code located in specific directories. Users can run scenarios by following README instructions and using run scripts. Additionally, the repository provides guidance on setting up prerequisites, obtaining a Google API key, and installing the AP2 types package.

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