The Color API
Pass in any valid color and get conversion into any other format, the name of the color, etc
Use Icon Finder API to search icons by name.
Cooper Hewitt, Smithsonian Design Museum
Cooper Hewitt, Smithsonian Design Museum Collections provides a REST-ish style application programming interface (API) for developers to use in their products and services
Access the data behind millions of projects and works-in-progress, across all creative fields, client, brand, location, and much more!
Harvard Art Museums
The Harvard Art Museums API is a REST-style service designed for developers who wish to explore and integrate the museums’ collections in their projects.
Access icons8 collection with their API