POPULAR CLIENT LIBRARIES List of popular API client libraries. Please feel free to add to the list below. Java ORCID Example Client Application (JOPMTS). ORCID client library written in java. Lightwieght, easy to use, with the complete ORCID message schema modelled as POJOs PHP WordPress plugin that displays ORCIDs in comments and posts PYTHON A simple wrapper around the ORCID.org API. RUBY A Rails engine for orcid.org integration