when is restful api design overkill, dont get me wrong its useful but sometimes its just too much

hey everyone, i've been thinking a lot about api design lately, specifically around when we might be over-engineering things by strictly adhering to rest principles. for internal services or simple crud operations, does the added complexity of hypermedia controls, strict http method usage, and resource-based uris always pay off? or are there situations where a simpler rpc-style approach or even just a tightly coupled direct integration makes more sense, especially for rapid prototyping or performance-critical internal components? curious to hear your thoughts and experiences