Wow. Here's the free alternative free GIF API with monetization - KLIPY - https://klipy.com/developers You can migrate in few minutes with just base url swap.
I was able to quickly add support for it at https://github.com/discourse/discourse-gifs/pull/107
Love to see WEBP support. Do you plan on adding support for AVIF?
Also, this is used by many Discourse sites, we should talk.
Re AVIF, do you need those for specific purpose?