Big List of Real Estate APIs

A couple of months ago I ran into this request from Ryan Delk on Twitter:

After a quick search I was able to find a real estate API matching his needs. It gave me an idea though, there are a lot of APIs for real estate data if you know where to look. So to make it easy I started a list of real estate APIs and broken them down by category.

Some of the obvious ones are on here,, Zillow, Rets Rabbit, but there are a few more such as the great community and places API data from Onboard Informatics.

It’s a public gist so feel free to contribute if you know of any APIs we can add to the list.