Is this written in Rails? I am a pretty senior web developer with experience in Rails, Java, and .Net. I'm more of a backend than frontend developer, but can do both. Happy to work on it if you're open to collaboration. I have setup throttling before using RackAttack as well. Could also do it at a proxy / middleware layer using Golang depending on your architecture. For now I'd like to use my scan for earnings candidates to automatically pull RV values for 2 week and 4 week spreads. I should have sometime to work on this while we wait for next earnings cycle. This shouldn't get noisy and we could maybe just use something simple like JWT or bearer token that you can easily disable. Alternately it could be exposed via feature toggle that you could easily disable at runtime.
longer term I would like to look at automating my trading using TOS API, but even then I'd likely only fetch N number of candidates where N is < 10, once daily, and then calculate in realtime using TOS API from there. I can't imagine this would cause too much stress.