Hermes Antigravity Auth by mrhisyammm for Hermes Agent

Hermes Agent plugin and local proxy provider using Google Antigravity IDE OAuth for Gemini and Claude models

What Hermes Antigravity Auth does

The plugin runs its own lightweight proxy on port 8999 in the background and registers a Google Antigravity provider in Hermes. The README names Claude Opus 4.6, Claude Sonnet 4.6, Gemini 3.5 Flash, Gemini 3.1 Pro, Gemini 3 Pro and Gemini 3 Flash as available through it. You pick the provider with hermes model --refresh and then choose a model. Model names are translated for the Google API in the background.

Several Google accounts can be added, and requests rotate between them. Cooldowns are tracked separately per account and per model family, so a rate-limited Claude model does not block Gemini on the same account. Cooldowns escalate with consecutive failures from one minute to five minutes, thirty minutes and two hours. Slash commands such as /antigravity-mrhisyammm open an account manager, start a login or print quota limits. Accounts are stored in a file shared with the author's OpenCode version of the plugin.

Key features

Self-contained local proxy on port 8999
Multi-account support with automatic rotation
Cooldowns tracked per account and per model family
Progressive cooldowns of 1 minute, 5 minutes, 30 minutes and 2 hours
Slash commands for the account manager, login and quota display
One-line installer scripts for Windows PowerShell and macOS or Linux

When to use it

Using Gemini and Claude models in Hermes through existing Google OAuth logins
Spreading requests across several Google accounts to avoid hitting one account's limits
Reusing accounts already logged in through the OpenCode version of the plugin

Who it is for: Hermes Agent users who already have Google Antigravity IDE access and accept the account risks the README describes.

How it fits with Hermes Agent

A plugin built for Hermes Agent that adds a model provider, selected through the hermes model command.

How to install Hermes Antigravity Auth

These commands are copied from the project's README. Check the repository for the latest steps before you run them.

Set-ExecutionPolicy Bypass -Scope Process -Force; irm https://raw.githubusercontent.com/mrhisyammm/hermes-antigravity-auth/main/install.ps1 | iex
curl -fsSL https://raw.githubusercontent.com/mrhisyammm/hermes-antigravity-auth/main/install.sh | bash
hermes model --refresh

Requirements: One or more Google accounts with Antigravity IDE access; the Windows installer is run in PowerShell as Administrator

Note: The README warns that using this plugin violates Google's Terms of Service and that some users have reported banned or shadow-banned Google accounts.

FAQ

What is Hermes Antigravity Auth?

It is a Hermes Agent plugin that authenticates with Google Antigravity IDE OAuth and exposes Gemini and Claude models to Hermes through a local proxy. It rotates between several accounts.

Does Hermes Antigravity Auth work with Hermes Agent?

Yes, it is built for Hermes Agent. After installing, run hermes model --refresh and select Google Antigravity as the provider.

Is Hermes Antigravity Auth safe to use?

The README warns that using it violates Google's Terms of Service and that some users have reported banned or shadow-banned Google accounts. You use it at your own risk.