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Antigravity connects to xysq over SSE with a bearer token in the headers. Takes about two minutes.
1

Generate your API key

Open the Antigravity connect guide in app.xysq.ai (Connect → Antigravity) and generate a key. The full value is shown exactly once; copy it right away.
2

Copy your MCP config

Antigravity uses SSE with header support. Add this entry to your MCP config:
3

Paste the config and restart

Paste the JSON into your global Antigravity MCP config and restart the app.
Antigravity locations vary by version. Check the app’s Settings → MCP servers section for the active config path, or paste through the in-app editor if available.
If the connection won’t establish, verify the URL is reachable from your machine:
Even a 401 Unauthorized is fine; it means xysq is reachable and just rejecting the unauthenticated probe.
4

Verify the connection

In Antigravity, trigger any xysq tool call:
The in-app guide watches for the first call and marks the connection verified.