The majority of the Cloudswitch instructions are in Dutch. However, for some users a few pages are translated into English.
Endpoint for .NET SOAP:
https://api.kingfinance.nl/v1/ws1.asmx
Endpoint for PHP/Javascript:
https://api.kingfinance.nl/v1/ws1_xml.asmx
Each partner has a unique PARTNERKEY.
Every connection to a MUIS administration is identified by a OMGEVINGSCODE. From the KING Software you can acquire this code.
All actions start with the function Login. The output will be a SESSIONID. You need this SESSIONID to make further calls to other function like CREATESTAMTABELRECORD (create a new record).