pump.io : Social server with an ActivityStreams API. It's a stream server that does most of what people really want from a social network.
Openframe : Openframe is an open source platform for artists, curators and art enthusiasts to share, discover and display digital art.
Openframe is free. Anyone c...
Strapi : Open source Node.js Headless CMS to easily build customisable APIs
Bluepine is a DSL for defining API Schema/Endpoint with the capabilities to generate Open API (v3) spec, validate API request and serialize object for API response based on single schema definition.