cafeTechne/antigravity-link-extension

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> **What's new in v1.0.20** — Security: removed child_process dependency entirely; debug endpoints now require auth; localhost guard on all LS RPC calls. See CHANGELOG.
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Contents
- Demo
- What you get
- Installation
- Prerequisites
- Quick start
- Commands
- Settings
- For agent builders
- How it works
- Account safety
- Troubleshooting
- FAQ
- Internationalization and accessibility
- Contributing
- API reference
- MCP server reference
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You're running an Antigravity session and need to step away from your desk. The AI is mid-generation. You want to monitor it, redirect it, upload a file, or just read what it wrote from your phone, without coming back to your computer.
Antigravity Link makes that possible. Scan a QR code and your phone becomes a live mirror of the active chat: read responses as they stream, send messages, stop generation, upload files, dictate via voice, and switch between multiple Antigravity windows all from a mobile browser, on your local network.
For automation, the extension also exposes a local HTTP API and an MCP server so agents and external tools can drive Antigravity sessions programmatically.
Demo
https://github.com/user-attachments/assets/43c7d029-a598-474f-949e-5da333c9a3f2
Screenshots
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What you get
- Live mirror of the active Antigravity chat — read and interact from your phone.
- File upload into the active Antigravity chat.
- Voice-to-text input from mobile (HTTPS required for mic permissions).
- Stop generation from your phone with a dedicated stop chip.
- Active instance switching for multiple Antigravity windows.
- Local HTTP API for automation and integrations (see API).
- MCP server for AI assistant integration (see MCP server).
- Local-only server with token authentication.
- Interface available in 16 languages with automatic detection and RTL support.
Installation
Install from the Antigravity extensions marketplace: search **Antigravity Link** or install directly from Open VSX.
Prerequisites
- **Antigravity IDE** installed and running.
- **A phone and computer on the same Wi-Fi network.**
- **Antigravity launched with the remote debugging flag.** This is required for the extension to discover and connect to your session. See the launch command in Quick start below.
Quick start
1) Start Antigravity with remote debugging enabled. This is required; sessions launched without this flag are not discoverable by the extension.
**Windows:**
**macOS:**
**Linux:**
Multiple Antigravity sessions are supported, but every window must be launched with this command.
2) In VS Code, run:
Antigravity Link: Start Server
3) Then run:
Antigravity Link: Show QR Code
4) Scan the QR code with your phone. Your mobile UI is ready.
5) Your phone may warn that the connection is unsafe because the certificate is self-signed. This is expected for local HTTPS. Use your browser's "Advanced" or similar option to proceed (wording differs between Safari/Chrome/Firefox).
Commands
| Command | Description |
| --- | --- |
| Antigravity Link: Start Server | Starts the local bridge server. |
| Antigravity Link: Stop Server | Stops the server. |
| Antigravity Link: Show QR Code | Displays the connection QR code. |
| Antigravity Link: Select Network Interface | Choose which network interface the QR URL advertises. |
Settings
| Setting | Default | Description |
| --- | --- | --- |
| antigravityLink.port | 3000 | Port for the local bridge server. |
| antigravityLink.autoStart | false | Start the server on VS Code launch. |
| antigravityLink.useHttps | true | Serve over HTTPS for mic access. |
| antigravityLink.preferredHost | "" | Optional LAN IPv4 to advertise in QR URL (example: 192.168.1.101). |