Klarna APIs are available through different base URLs relating to your location and interaction needs.To access these APIs, combine the base URL + endpoint, for example to "create an order" construct the URL to call like this:
Base URL for environment +
Example url for Live environment
Use the testing environments to get familiarized with API behaviour and try out things; use the live environments to start real transactions with Klarna.
HTTPS for all of your interactions with Klarna APIs.
Base URLs - Live (production)
Base URLs - Testing (playground)