Not sure if these are for realsies, but there are some API keys in the webapp repository:
https://github.com/wireapp/wire-webapp/blob/master/app/scrip...
https://github.com/wireapp/wire-webapp/blob/master/app/scrip...
https://github.com/wireapp/wire-webapp/blob/master/app/scrip...
https://github.com/wireapp/wire-webapp/blob/master/app/scrip...