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Antigravity is Google’s agentic IDE and supports MCP via a JSON config, similar to other clients.

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Config location

Open the command palette and search for MCP: Open Configuration, or edit the config file directly at:
OSPath
macOS~/Library/Application Support/Antigravity/mcp.json
Windows%APPDATA%\Antigravity\mcp.json
Linux~/.config/antigravity/mcp.json

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Config

{
  "mcpServers": {
    "versuno": {
      "command": "npx",
      "args": ["-y", "versuno-mcp"],
      "env": {
        "VERSUNO_API_KEY": "uk_live_xxx"
      }
    }
  }
}

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Reloading

Use MCP: Reload Servers from the command palette after saving the config, or restart the IDE.

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Using it

In the Antigravity agent chat, reference Versuno directly:
“Load the ‘bug triage skill’ asset from Versuno.”
Antigravity asks for approval on each tool call. Keep this on. See Security.

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Troubleshooting

The MCP status panel (accessible from the command palette) shows which servers are connected and any recent errors. See Troubleshooting for common causes.