New ask Hacker News story: Ask HN: Is a self-MitM HTTPS proxy that injects API keys useful?

Ask HN: Is a self-MitM HTTPS proxy that injects API keys useful?
2 by stanleydrew | 3 comments on Hacker News.
In the course of working on a side project, I've built a small HTTPS forward (i.e. egress) proxy to sit between my application servers and all external HTTP APIs. My proxy injects API keys into requests so that my application doesn't have to think about that. My question is whether this is useful to anyone else or not? There are perhaps other useful things you could do with it, like add some observability features? Thanks in advance for any feedback.