FYI: WebAPI Discovery Community Group

A group to develop a mechanism for the automatic discovery of WebAPIs, by
extending the schema.org vocabulary. Increasingly, large online platforms
and services provide one or more Web APIs for third-party developers.
Moreover, many companies build WebAPIs as their primary product (Email API,
SMS API, etc.). This has resulted in an explosion of the number of WebAPIs
in recent years. Developers spend a significant amount of time searching
for suitable WebAPIs to meet their needs. Our intention is to work closely
with Schema.org to define a WebAPI-specific extension and promote usage of
this extension among API owners. In the long run, our aim is to contribute
this extension into the core Schema.org vocabulary. To achieve these goals
we are seeking feedback and collaboration from API owners, DX specialists,
API description language experts and maintainers of various API catalogs.

 http://www.w3.org/community/web-api-discovery/