COPE filters and b2o system use ODB API SQL engine for filtering BUFR data and encoding their output data
Observational feedback archive uses ODB API and its data format to encode the data, build index (MARS server) and (optionally) filter retrieved data on the fly (MARS client)
ECMWF Researchers use ODB API command line tools and Python or Fortran bindings to examine observational feedback data archived by their experiments in MARS
OBSTAT uses ODB API to compute statistics of observational feedback data
ODB API is also used to compute statistics of observational feedback data produced by C3S reanalysis
MetOffice and UM community
Unified Model (UM) Community, lead by the Met Office, uses ODB API as part of their Observation Processing System (OPS). UM Community includes: UK MetOffice, India Meteorological Department, Korean Meteorological Administration, Australian Bureau of Meteorology and Naval Research Laboratory.
HIRLAM
HIRLAM community uses ODB API as part of their cooperation with ECMWF on the development of COPE system.