Guggy is a new smart contextual GIF maker. Through the use of Natural Language Processing, Guggy selects a humorous GIF to complement input text. The end result is what the company calls a "GIF Message" - a GIF with text overlaid. Guggy offers complete access to the platform via a free REST API.
Publr.com is a free blogging service with a few innovative features. It allows posts of various types, including your typical text, but also including maps, videos, chat transcripts, and links. Its site has a pretty good typical web interface for such things, and there are both first-party and third-party applications to use to post. Those third-party applications use the Publr API.