ToS Clarification — Is OpenBot (official Antigravity ACP server) permitted under the Antigravity Terms of Service?

Google Antigravity
1

Hi,

I’d like to clarify whether using OpenBot (GitHub - nightly-labs/openbot: A local-first desktop workspace for persistent AI teammates. Run Codex, Claude, and Grok with dedicated workspaces, task queues, file sharing, browser control, and agent-to-agent collaboration. · GitHub) with my personal Google AI Pro subscription is permitted under the Antigravity Terms of Service.

On the implementation side, OpenBot works the same way as described for T3 Code: it downloads Google’s official `antigravity-acp` server from the ACP Registry and launches the unmodified binary, communicates with it over standard ACP (JSON-RPC), and signs in through the server’s native Google OAuth flow (`oauth-personal`). It does not extract, reuse, or proxy OAuth tokens, and it does not wrap or drive the Antigravity desktop app or CLI externally.

I understand from the previous clarification regarding T3 Code that using the unmodified official ACP server for single-user interactive development is permitted.

My intended use is also single-user and interactive only: I would chat with the agent to create documents and materials, and use interactive features such as Computer Use and browser operation while I am present. I do not intend to use background agents, task queues, scheduled tasks, or unattended or remote execution.

Could you confirm whether OpenBot is treated the same way in this case?

Specifically:

1. Is using OpenBot with personal OAuth authentication permitted for individual, interactive use as described above?

2. Does interactive Computer Use and browser operation through OpenBot fall within the same scope, or is it treated differently from interactive coding?

3. Are there any additional restrictions compared with using Antigravity directly?

I’d appreciate clarification so I can use the service without unintentionally violating the terms.

Thank you!

2

Hi @marushiba321,

Thanks for checking before setting things up. Here are quick answers to each question:

1. Using OpenBot with antigravity-acp and oauth-personal interactively Yes, this is allowed for personal, single-user interactive sessions as long as OpenBot runs the official, unmodified antigravity-acp binary and its built-in browser login ("auth": { "type": "oauth-personal" }) without intercepting credentials or overriding system prompts.

  • Keep automation off: Consumer plans ([FAQ]) don’t allow unattended background runs, task queues, multi-agent “teammates,” or credential sharing/rotation on oauth-personal.
  • For automated/multi-agent runs: Switch to a Google AI Studio API key ("auth": { "type": "gemini-api-key" } from https://aistudio.google.com/app/api-keys) or Vertex AI ("auth": { "type": "agent-platform" }).

2. Interactive Computer Use and browser actions Yes, supervised interactive use (including creating docs or browser/desktop actions while you’re present) is fine:

  • Client-supplied tools (ToS Section 4): OpenBot provides its own local browser/Computer Use MCP tools (they aren’t bundled in antigravity-acp). Google doesn’t support third-party tool drivers, and you are responsible for supervising the agent and what it accesses.
  • No unattended use (ToS Section 6): Don’t use them for background scraping, polling, autonomous loops, or bypassing logins/CAPTCHAs.

3. Differences vs. official Antigravity surfaces

  • Gemini models only: Third-party ACP clients only get the Gemini models in your Google AI Pro plan (models like Claude require the official App, CLI, or supported IDEs like JetBrains, Zed, and Xcode).
  • Shared quota: Usage counts toward your regular Google AI Pro limits ([Plans]). Check remaining quota or toggle overages in the Antigravity App (Settings > Models) or CLI (/usage or /credits).
  • Features & support: App-specific UI (browser recording, artifact review, worktrees) isn’t available, and Google doesn’t support third-party clients—if you hit an issue, please verify if it reproduces on an official surface ([Authentication & ACP configuration docs], [Zed ACP setup]).