Web service - API

Information about addressing of external API's to retrieve data.

How can I use your API's?

Can I view the API using an exporer?

Is a swagger import available?

What security modes are used?

How does an API key work?

What formats are supported?

How does the expansion technique work?

How does the error handling work?

Authenticate via Oauth 2.0

Which payment methods can I start via the API?

How do I integrate online payments via the API into my website?

API v2 reference