01 · Why connect
Antigravity docs show local and remote MCP config under ~/.gemini/config/mcp_config.json.
Prefer the remote URL form. Confirm the current Antigravity build still reads this path. The Make0 MCP URL is https://make0.ai/mcp. Google Antigravity can sign in with OAuth on any plan, or use an API key on Pro and Max. Either way, you pick which brains it can use.
02 · How to connect Google Antigravity
Install Make0 Brain in 4 steps
- 01
Locate MCP config
Open Antigravity / Gemini MCP config.
- 02
Add Make0
Set url to https://make0.ai/mcp.
- 03
Authorize
Complete Make0 OAuth.
- 04
Use the agent
Ask Antigravity to recall a Brain memory.
03 · ~/.gemini/config/mcp_config.json
Copy this into Google Antigravity
Use HTTP or Streamable HTTP. Do not wrap Make0 as a local stdio command. This config signs in with OAuth.
{
"mcpServers": {
"make0-brain": {
"url": "https://make0.ai/mcp"
}
}
}04 · API key
Or connect with an API key
On Pro and Max you can skip the sign-in and use an API key. In Make0, open Connect Brain via MCP, choose API key MCP, and create a key with the brains and access it needs. Add a headers block to the server in mcp_config.json.
~/.gemini/config/mcp_config.json
{
"mcpServers": {
"make0-brain": {
"url": "https://make0.ai/mcp",
"headers": {
"Authorization": "Bearer YOUR_MAKE0_API_KEY"
}
}
}
}Replace YOUR_MAKE0_API_KEY with your key. Make0 shows a key once, so keep it somewhere safe. You can revoke it any time in Settings.
05 · System instruction
Tell the agent to prefer Make0 Brain
Paste this into Google Antigravity’s system instructions or custom instructions so it reads and writes memory through Make0 instead of its own store.
Make0 Brain is my source of truth for durable memory. Always search it before answering about me, my work, people, preferences, or past decisions. Save lasting facts and decisions to Brain. Never guess or invent memories. Use Brain exclusively for durable memory.
Questions
Connecting Google Antigravity
How do I connect Make0 Brain to Google Antigravity?+
Add Make0 as a remote HTTP MCP server using https://make0.ai/mcp. In the Make0 connect dialog, choose OAuth and Google Antigravity will open a sign-in so you can pick which brains it can use. On Pro or Max, if Google Antigravity accepts custom headers, you can choose API key MCP instead and send the key to this URL as Authorization: Bearer.
What is the Make0 MCP URL?+
The production Make0 Brain MCP endpoint is https://make0.ai/mcp. Use HTTP or Streamable HTTP if the client asks for a transport. Server name: make0-brain.
Does Make0 Brain MCP use OAuth?+
Yes. Compatible clients discover OAuth from the MCP server, you sign in to Make0, and you grant read or write access to specific brains. Two-factor authentication may be required.
Can I use an API key instead of OAuth?+
On Pro or Max, yes, for apps that let you set an HTTP header. Open Connect Brain via MCP, choose API key MCP, and create a key for specific brains or all brains. Send it to https://make0.ai/mcp as Authorization: Bearer. OAuth works on every plan; Free and Lite use OAuth.
Official Google Antigravity MCP docs: codelabs.developers.google.com/getting-started-google-antigravity