antigravity-sdk-python

Why we included this project

Google maintains this Python SDK for building agents on Antigravity and Gemini, and it handles the parts of the agentic loop that usually eat your time: tool wiring, hooks, state, and lifecycle. The Agent class wraps all of that behind one async context manager, so you can write the behavior your agent should have rather than the plumbing around it. The SDK ships a compiled runtime binary inside its PyPI wheels, so the abstraction does not cost you performance. It also works with both the standard Gemini API and the Vertex-based Enterprise Agent Platform, with authentication through environment variables or Application Default Credentials. For teams that would rather start from a first-party foundation than assemble an agent framework from parts, this is a practical place to begin.