The API provides output in either JSON or XML format. An API key is not required, but users are required to provide certain parameters that will allow for tracking of API usage. API rate limits are currently unpublished. The following data is provided by the API.
Area code timezone
Current time in the timezone
Area code state
OpenCitations is a non-profit organization for scholarly bibliographic and citation open data. COCI is the OpenCitations Index of Crossref open DOI-to-DOI (Digital Object Identifier) references. The...