Google Antigravity Setup

Configure Google Antigravity to use the Open Data Dictionary MCP server for data terminology lookups inside your agent workflows.

Configure Google Antigravity to use the Open Data Dictionary MCP server so its agents can look up canonical column names, definitions, data types, and synonyms while they work.

Prerequisites

Google Antigravity installed and signed in
An API token from your account settings

Configuration

Antigravity speaks MCP over Streamable HTTP, so there is no npx bridge to install — you paste the server URL directly.

Open the MCP settings

In Antigravity, open Settings and look for the MCP Servers (or Model Context Protocol) section. This is where external tool servers are registered for agents to call.

Add the Open Data Dictionary server

Add a new server entry with the JSON below.

MCP Configuration

{
  "mcpServers": {
    "open-data-dictionary": {
      "url": "https://opendatadictionary.com/api/v1/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_TOKEN"
      }
    }
  }
}

Replace `YOUR_API_TOKEN`

Generate a token from Account Settings and paste it in place of YOUR_API_TOKEN. The token is shown only once at generation time — store it somewhere safe.

Never commit your API token to source control. Treat it like a password.

Restart Antigravity (or reload the agent surface) so the new MCP server is picked up. Once connected, the agent will see tools such as search_words, get_word, list_categories, get_synonyms, and get_schema.

Verify the connection

Ask the agent something that requires the dictionary — for example, "Use Open Data Dictionary to look up the canonical definition of customer_id." If the tool is wired up correctly, the agent will call get_word (or search_words) and return a result from your dictionary.

Troubleshooting

401 Unauthorized — The Authorization header is missing or the token is wrong. Re-generate a token in Settings and paste the full value (starts with odd_live_).
429 Too Many Requests — You have hit the per-token daily rate limit. See Rate Limits.
Tools do not appear — Confirm Antigravity actually reloaded the MCP server list after you saved the config. A full restart is the most reliable fix.

Generate an API Token
API Reference
Cursor IDE Setup and Claude Desktop Setup for other clients

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