The OGC API family of Standards is being developed to make it easy for anyone to provide geospatial data over the web. These Standards build upon the legacy of the OGC Web Service Standards (WMS, WFS, WCS, WPS, CSW, etc.), but define resource-centric APIs that take advantage of modern web development practices.
An implementation of the OGC API — Records Standard provides a way to browse or search a curated collection of records known as a catalog. The Records API Standard envisions deploying a catalog using one of the following patterns:
a collection of static files, a collection of records accessed via an API.
Request For Comment (RFC)
OGC Seeks Public Comment on Candidate OGC SensorThings API Extension: WebSub Asynchronous Messaging Standard