To access the the API, you will need to generate an API token on the developers page (https://app.amber.com.au/developers/documentation/). You will need an Amber account to generate an API token.
Example: psk_xxxxxxxxxxxxxxxxx

ID of the site you are fetching prices for. Can be found using the /sites endpoint on the developers page (https://app.amber.com.au/developers/documentation/).
Example: 01J23BAP2SFA218BMV8A73Y9Z9