The ORCID registry supports “content negotiation”. This means machines and other systems can ask ORCID registry for person metadata in different formats.
One of these formats is JSON-LD, which uses the schema.org vocabulary, specifically the Person type, which we connect with works, organisations and other identifiers. We also support XML, JSON, RDF XML and turtle, and have implemented Cross-origin resource sharing (CORS) to make it our data easy to access.