Introduction.- Communication and Capability URLs in COAST-based Decentralized Services.- Interoperability of two RESTful protocols: HTTP and CoAP.- Enabling Real-Time Resource Oriented Architectures with REST Observers.- Survey of Semantic Description of REST APIs.- APIs to A ordances: A New Paradigm for Services on the Web.- Leveraging Linked Data to Build Hypermedia-Driven Web APIs.- RestML: Modeling RESTful Web Services.- A Lightweight Coordination...