Please reach out to your Hutch Systems representative and request an API Token.
Once obtained, visit Chain's carrier onboarding page: https://chaineapp.com/carrier-onboarding
Find the ELD called "Hutch"
Click "Enable"
Then, enter your API key in the input and click the blue "Enable"
If the API key is correct, it will show you a success pop-up.
Please email support@trychain.com if you need help.