This is part of the Nuki Web API documentation.
The Swagger Interface under https://api.nuki.io/ lists als API commands with its input and output parameter. Next to just listing the commands the interface also allows to easily perform API commands.
Go to https://api.nuki.io, paste the OAuth2 API key, select scopes you want to grant this key and log
into the Swagger interface:
Choose an API function you want to execute. e.g. the GET /smartlock in order to obtain a list of
Smart Locks on this account: