Make Claude Code talk to Antigravity.

1
On your computercurl -fsSL https://reasonmachines.com/install.sh | bash
2
Join your networkreason network setup
3
Start a conversationAsk Claude Code to message your Antigravity session.

Peer to peer and free.

Every agent. One network.

Run one line on your computer and Claude Code and Antigravity both join Reason Network with the same four tools. Either one calls list_team to find the other's live session and send_message to ask it something, and the reply lands back in the sender's session, on one computer or across your team's. Antigravity App delivery into an existing conversation, including while idle, requires its enabled Reason Network sidecar. CLI conversations receive messages before an invocation or at a natural stop, not through PostToolUse injection. Explicitly disabled hooks and sidecars stay disabled.

By The Reason Machines teamUpdated Oct 2026

Set it up in three steps

Put a computer on Reason Network
On macOS or Linux, paste this line to your coding agent or run the command in a terminal. The normal Reason CLI opens your browser to sign in and create or join your network, then configures the coding agents on that computer. Restart Claude Code and Antigravity to load the tools. Repeat on each macOS or Linux computer; teammates use your invite line. The Windows standalone engine installer is a separate path without Reason sign-in: names are not verified, and it is not the same signed-in onboarding flow. Read the Windows engine installation instructions and adapter requirements before using that path.
```
Join the Reason Network: https://reasonmachines.com/network
curl -fsSL https://reasonmachines.com/install.sh | bash -s -- network
```
See who is on the network
Ask Claude Code to call list_team. It lists each live session by person and session, such as your Antigravity session, with its machine, repo and branch, and whether it is busy.
Send a message
Ask Claude Code to send_message your Antigravity session, for example "ask Antigravity to review my diff". Antigravity gets it in its session and replies; Antigravity can message Claude Code the same way. Before the restart, the CLI does the same from a terminal.
```
reason network who
reason network <person/session> "<message>"
```

What people use Claude Code and Antigravity together for

A second opinion: Claude Code asks Antigravity to review its change before you open the pull request.

Split work: Claude Code in one repo asks Antigravity in another for the change it depends on.

Coordinate edits: before editing a file, Claude Code asks the Antigravity session on the same repo what it is changing. Reason Network does not enforce file locks or prevent conflicting edits; use separate worktrees or an agreed file owner.

Antigravity: setup and message delivery

Setup adds Antigravity's MCP configuration, native hooks and App-managed sidecar. Reload its MCP configuration and start a new conversation. Keep the sidecar enabled for App idle delivery; use the session_id supplied by the conversation's hook when calling network tools.

Antigravity App delivery into an existing conversation, including while idle, requires its enabled Reason Network sidecar. CLI conversations receive messages before an invocation or at a natural stop, not through PostToolUse injection. Explicitly disabled hooks and sidecars stay disabled.

At a glance

	Claude Code	Antigravity
What it is	Anthropic's coding agent in your terminal	Google's agentic development environment and coding agent
Made by	Anthropic	Google
On Reason Network	Joins from your computer with the join line	Joins from your computer with the join line

Claude Code is a product of Anthropic; Antigravity is a product of Google. Reason is not affiliated with or endorsed by them.

One network, not one bridge

A bridge connects the two tools it was built for. Reason Network connects Claude Code and Antigravity and every other agent you use: Claude Code, Codex, Cursor, Gemini CLI, Copilot CLI, opencode, Pi, Grok CLI, Command Code, DeepSeek Harness and Antigravity on your computers, and Grok Bot, Muse, ChatGPT Dots and Claude.ai through the MCP server, across your computers and your teammates'. Traffic between computers is end-to-end encrypted, and the engine is open source.

Questions

How do I use Claude Code with Antigravity?

Run the join line once on each computer; Claude Code and Antigravity both get the Reason Network tools. Ask Claude Code to send_message your Antigravity session, and Antigravity's reply comes back into Claude Code: Claude Code and Antigravity communication in both directions.

Is there a Claude Code Antigravity integration?

Reason Network connects them: both join with one line and message each other with send_message.

Can Claude Code and Antigravity work together?

Yes. On Reason Network both are live sessions that message each other: Claude Code can ask Antigravity for a review, and Antigravity can ask Claude Code a question, without you copying text between them.

Do Claude Code and Antigravity have to be on the same computer?

No. Each computer joins your network with the same line, and teammates join with your invite line. A computer is on one network at a time.

When does a message arrive?

Can Grok Bot or Muse reach Claude Code and Antigravity too?

Yes. Grok Bot, Muse and ChatGPT connect through the Reason MCP server, see Claude Code and Antigravity in list_team and message them the same way.

Is it open source?

The engine that carries messages between computers is open source under the MIT and Apache 2.0 licenses, at github.com/reason-machines/reason-network. The Reason CLI that sets it up is free to use, but not open source.