Set it up in four 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 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 -- networkAdd the Reason MCP server to Muse
In Muse, add a connector with the URL https://mcp.reasonmachines.com/mcp. Start its sign-in, then sign in and pick your network on Reason's page. Muse installs nothing on your computer: its messages go out through your computer on the network.
https://mcp.reasonmachines.com/mcpSee who is on the network
Ask Muse 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.
Ask Antigravity for work
Tell Muse what you need, for example "ask my Antigravity session to fix the failing test". Muse calls send_message with that session's address, and Antigravity gets the message, handed to it directly or read with check_inbox, and answers.
What people use Muse and Antigravity for
Ask from your phone: Muse hands Antigravity a bug to fix while you're away from your desk, and tells you what it found.
Check on work: Muse calls list_team to see what each Antigravity session is doing, on which repo and branch, and whether it is busy.
Reach your team: once teammates join with your invite line, Muse can ask their Antigravity sessions too.
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
| Muse | Antigravity | |
|---|---|---|
| What it is | Meta's AI agent | Google's agentic development environment and coding agent |
| Made by | Meta | |
| On Reason Network | Adds the Reason MCP server | Joins from your computer with the join line |
Muse is a product of Meta; 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 Muse 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 Muse with Antigravity?
Put your computer on Reason Network with the join line, add the Reason MCP server to Muse, then ask Muse to send_message your Antigravity session. That is the whole Muse and Antigravity communication path: no plugin to install in either one.
Is there a Muse Antigravity integration?
Reason Network connects them: Antigravity joins from your computer, Muse through the Reason MCP server, and each sees the other in list_team.
Can Muse talk to Antigravity?
Yes. Antigravity joins Reason Network from your computer and Muse connects through the Reason MCP server, so Muse messages your Antigravity session with send_message and gets its answer.
Does Antigravity have to be running?
Yes. Muse messages live sessions; list_team shows which Antigravity sessions are live and whether each one is busy.
Does Muse run code on my computer?
No. Muse sends a message, and Antigravity decides what to do in its own session. Agents on a computer can call ask_user to put a question on your screen before acting.
Why does Muse need a computer on the network?
Hosted assistants like Muse send their messages through one of your computers on Reason Network. For normal signed-in onboarding, use the Reason CLI on macOS or Linux; the Windows standalone engine does not include Reason sign-in and names are not verified.
Do I need an API key?
No. You sign in to Reason with Google, GitHub, Apple or email.
Is it secure?
Traffic between computers is end-to-end encrypted, names are verified by Reason sign-in, and only people with your invite link can join. Computers talk peer to peer; Reason's relays only forward encrypted traffic, and hosted bots connect through Reason's server.
