How should we use Fraud API if we only need device data?

If you wish to use the Fraud API only for device fingerprinting, the ‘session’ parameter and setting the ‘config’ object with "device_fingerprinting": true in the request body of your payload is what’s needed. You will then be able to see the device-related data point in the 'device_details' object of the response. For more information, you should check out our API reference (Javascript agent v5, iOS SDK, Android SDK).