# Antigravity SDK Antigravity SDK is the programmatic surface of the [[Google Antigravity]] platform — the way developers build on the same agent harness that powers Google's own products, instead of using a ready-made app. ## What it offers - Programmatic access to the shared [[Google Antigravity]] agent harness - Optimised for [[Gemini]] models - Define custom agent behaviours, then host them on infrastructure of your choice - Aimed at engineering teams embedding Antigravity-style agents inside their own products or internal tooling ## Where it sits One of four surfaces over a single shared harness, alongside [[Antigravity 2.0]], [[Antigravity CLI]], and [[Antigravity IDE]]. The SDK is the surface that turns Antigravity from a tool you use into a platform you build on — the same move [[Anthropic]] made by exposing the harness behind [[Claude Code]]. ## References - Antigravity: https://antigravity.google ## Related - [[Google Antigravity]] - [[Antigravity 2.0]] - [[Antigravity CLI]] - [[Antigravity IDE]] - [[Google]] - [[Gemini]] - [[AI Agent Harness]] - [[AI Agents]] - [[Anthropic]]