Install on Antigravity

Antigravity uses a global MCP config file. Open it from Settings → Customizations, paste the config, and restart.

PrerequisiteNode.js 18 or later — verify with node --version
1

Open Settings → Customizations → Open MCP Config

Open Antigravity Settings and navigate to Customizations. Under Installed MCP Servers, click Open MCP Config to open the global config file.

Antigravity Settings Customizations panel showing No MCP Servers with arrow pointing to Open MCP Config button
2

Paste the Veilguard config into mcp_config.json

The mcp_config.json file will open. Paste the following config (or add the veilguard block into an existing mcpServers object):

{
  "mcpServers": {
    "veilguard": {
      "command": "npx",
      "args": ["-y", "--package=veilguard", "veilguard-mcp"],
      "env": {
        "VEILGUARD_KEY": ""
      }
    }
  }
}
The mcp_config.json file open in Antigravity with the veilguard config pasted in
3

Save, then click Refresh in Customizations

Save the config file. Go back to Settings → Customizations and click Refresh. You should see veilguard listed under Installed MCP Servers with a green dot and 14 tools enabled.

Antigravity Settings Customizations showing veilguard installed with green dot and 14 tools enabled
Antigravity Customizations with veilguard installed and arrow pointing to Open MCP Config button
4

Verify it's working

Open a new Antigravity agent chat and ask: "Run a full audit for this project". Veilguard will run all 14 security scanners and return a detailed report with findings.

Antigravity agent chat showing Veilguard full audit results with 37 issues found including critical vulnerabilities
Pro

Add your Pro key (optional)

Go back to Settings → Customizations and click Open MCP Config again. Replace the empty string on VEILGUARD_KEY with your license key, save, and click Refresh.

The mcp_config.json with VEILGUARD_KEY showing PASTE YOUR VEILGUARD KEY HERE highlighted with an arrow

Get a Pro key at veilguard.dev/pro. Keys look like vg_live_xxxxxxxxxxxxxxxxxxxx.

Notes

  • The MCP config is stored at ~/.gemini/antigravity/mcp_config.json — it applies globally to all Antigravity projects.
  • Click Refresh in Customizations after any config change — no full restart required.
  • For auto-scanning, download the rules template to your project root.