Switchere API V2 RESTful API.
The API includes two parts: Public and Partner.
The Public API is available to everyone without a signature, but has a limited set of endpoints for obtaining some public data.
The Partner API gives you the access to create client orders or create partner clients. Also you need add a signature to every API call you do. You also have to add a signature to each API call. You can read more about how to create a signature in Authentication.