How can I add MCP to Antigravity? Encountering issues with integration.

hoddukzoa · November 20, 2025, 4:35pm

Hi everyone,

I’m trying to add the Palantir MCP server to Antigravity, but I’m encountering issues getting it to work. Since there’s no official documentation for Antigravity yet, I tried following the pattern from other MCP server configurations.

Here’s the configuration I added to my mcpServers section:

"mcpServers": {
  "palantir-mcp": {
    "command": "npx",
    "args": [
      "-y",
      "palantir-mcp",
      "--foundry-api-url",
      "https://<enrollment>.palantirfoundry.com"
    ],
    "env": {
      "FOUNDRY_TOKEN": "<token>"
    }
  }
}

However, when I try to use it, I get the following error:

Error: calling "initialize": EOF.

I’ve tried:

Verifying the token is valid and has proper permissions
Double-checking the Foundry API URL format
Restarting Antigravity after configuration

Has anyone successfully integrated the Palantir MCP server with Antigravity? Is there a specific configuration format or additional setup required? Any guidance would be greatly appreciated!

Thank you!