My understanding is that Postman unfortunately pulled the same thing lately, so that's unfortunately a no-go for you.
I've previously had good experiences with Paw (now RapidAPI) - https://paw.cloud/, but given that they are closed source and have started giving away the software rather than charging for it, I'm not filled with optimism they won't do a similar rug pull.
I’ve actually tried Paw but I found it tricky because it doesn’t have a quick fuzzy search for existing API requests, which is something I use a lot in Insomnia.
I've previously had good experiences with Paw (now RapidAPI) - https://paw.cloud/, but given that they are closed source and have started giving away the software rather than charging for it, I'm not filled with optimism they won't do a similar rug pull.