About this service

This API documentation is provided to augment and expand the built-in documentation, and is divided into four sections:

1. A description and explanation of the data that can be accessed using the API: read Before you start...
2. Reference documentation describing how data requests are constructed and all of the options within them - this includes a quick-start walk-through of exploring and returning time series data
3. Information on how to register for an access key and how to use it
4. Example data requests (endpoints)