AI stackHarnesses

Antigravity CLI

Harness · terminal agent

Verdict pending · Being written from the sources

Visit antigravity.google

Verified Oct 6, 202610 sourcesLive

Google's terminal agent: the TUI surface of Antigravity, and the successor to Gemini CLI for consumer plans.

Summary

Antigravity CLI (command agy) is the terminal user interface of Google Antigravity. It shares the agent harness and settings with the Antigravity 2.0 desktop app, edits files and runs commands with your permission, supports subagents, MCP, skills, plugins and hooks, and works over SSH and headless. Since June 18, 2026 it replaces Gemini CLI for free, Google AI Pro and Ultra users, with a one-time import of Gemini CLI extensions and settings.

Key details

Surface	CLI (TUI)
Platforms	macoslinuxwindows
BYOK (Bring Your Own Key)	Partial: Gemini API key only (modelProvider=gemini + GEMINI_API_KEY); custom Gemini-compatible endpoint via GOOGLE_GEMINI_BASE_URL
MCP Support	✓ Yes
Agent Skills Support	✓ Yes
Open Source	✗ No(None (no licence file; Google Terms of Service))

Installation

Terminal

curl -fsSL https://antigravity.google/cli/install.sh | bash

Alternative installation methods:

irm https://antigravity.google/cli/install.ps1 | iex

curl -fsSL https://antigravity.google/cli/install.cmd -o install.cmd && install.cmd && del install.cmd

Repository

Pricing

From the vendor's pricing pageVerified Oct 6, 2026

Plan	Price	Basis
Individual	Free
Google AI Pro	$20/mo	Billed monthly
Google AI Ultra	$100/mo	Billed monthly
Gemini Enterprise (Google Cloud)	$30/mo per seat	Per seat, billed monthly
Gemini API key	Price pending

Sources

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