[black3r]

There is a difference between an app ID and a secret. A secret is something that can be used to impersonate you or your app towards a 3rd party service if leaked.

3rd party log-in SDKs using OpenID connect can work entirely without client-side secrets using only your app IDs. Crash logging and analytics services API keys are also usually considered to be app IDs, not secrets.

[mrbombastic]

Sure but now the advice is what? first determine which of these 10 api keys your app uses are really secret, for those that aren’t just stick em in the binary and you are done, for those that are set up a proxy server with authentication, store the keys on that, and call the apis through there. …or you could stick all 10 in the binary and be done in 5 minutes. Can you start to see why it is so common that people just stick api keys in the binary? Can’t we have some reasonable dev experience for storing secrets that isn’t 10x the effort?

[black3r]

Determining which API key is supposed to be a secret isn't usually an issue, cause typically site providing you with the secret key clearly states the fact that it's supposed to be a secret. For example this is what OpenAI says about their keys directly on the page where you generate the key: "Your secret API keys are listed below. Do not share your API key with others, or expose it in the browser or other client-side code."