All libraries need to switch from MARC to Bibframe so our catalog entries are interoperable with internet search engines, but hey. In the meantime, we've got this great extension. You need to configure it with your public library & then when you browse books on Amazon (and other places), there's a little box on the webpage that shows you whether your local library has the title.
Serial Reader | Classic Books in Daily Bits for iOS and Android
I've been reading Moby Dick for years with this app, lol. No but I do really love it. I'm actually almost done with Moby Dick. This app doesn't sync between phones very well ime.