There are multiple ways to access SECOORA data. The primary ways is through the SECOORA Data Portal and its associated Data Catalog.
The underlying data may also be access by ERDDAP or THREDDS.
Model and gridded data are served by the THREDDS server and time-series data by the ERDDAP server. ERDDAP documentation is available here.
These services are particularly useful for machine to machine data access.