Before configuring a PSP make sure to set up an account and retrieve all the correct API keys. You can find more details on how to do this specified per payment service provider on their dedicated documentation page GoMeddo Payments API only.
Once you’ve retrieved all the API keys you will need to create a new provider in GoMeddo Payments. To do this call the Create Payment Provider endpoint and provide the details as shown in the examples. The credentials you’re entering here are the ones you retrieved earlier.