The Gantry API requires API keys for authentication. You can generate an API Key on the Settings page. See the documentation for more details.
Once you have an API key, you can authenticate your API request by adding the X-Gantry-Api-Key header like so:
curl https://app.gantry.io/api/v1/me \
--header 'X-Gantry-Api-Key: <your-api-key>'