From the README

# Google Antigravity SDK

The Google Antigravity SDK is a Python SDK for building AI agents powered by
Antigravity and Gemini. It provides a secure, scalable, and stateful
infrastructure layer that abstracts the agentic loop, letting you focus on what
your agent *does* rather than how it runs.

## Installation

```sh
pip install google-antigravity
```

> [!IMPORTANT]
> The Google Antigravity SDK relies on a compiled runtime binary that is
> included in the platform-specific wheels published to
> [PyPI](https://pypi.org/project/google-antigravity/). **Cloning this
> repository alone is not sufficient to run the SDK.** Always install from
> PyPI with `pip install google-antigravity` to obtain the binary.

## Quickstart

Get started by running one of the [`examples/`](examples/), such as the
`hello_world` example with:

```sh
export GEMINI_API_KEY="your_api_key_here"
python ./examples/getting_started/hello_world.py
```
## Gemini Enterprise Agent Platform (formerly Vertex AI)

To use the S