How is beamable establishing connection to the microservice server?

Right now i can just build the game and the published microservices work, but how is beamable establishing this connection to the server? Is it secure or can someone on the client side decompile and start making those server calls?

The thing is im doing API calls through Beamable which has the API keys, I dont want the player to be able to able to call something like Services.config.GetSetting("some_api_key") and essentially gain access to the API's that Beamable is serving as a backend for.

Sorry if this question is too novice, im kind of new to this stuff