It would be very helpful to get only the JSON of a feed instead of having to be stuck using the limited Elfsight design. I use the Instagram feeds on many sites and having to hack around the CSS it brings in is not ideal.
Hi Gregory!
I do understand your idea, and I’m sorry that we don’t provide access to JSON.
I have to say that it’s unlikely that we will implement something of this kind due to the different concept of our widgets, I’m truly sorry!
However, you’re welcome to add this request to our wishlist at https://wishlist.elfsight.com/, we’ll try to consider it in the future 
Thank you!