[tough]

SwaggerUI/OpenAPI support this to add your own users API credentials to the api call examples, if you care to implement.

as a develoer, is just a nice touch that I can copy paste an example of code snippet and since I'm logged in they can give it to me already with a valid api key.

ymmv

They also allow to output examples in as many langugages/sdk's as you need too

[nicolaslem]

This unfortunately encourages users to hard-code secrets since the example snippet they get literally does it.