http://hapi-server.org/servers/SSCWeb/hapi

https://cdaweb.gsfc.nasa.gov/hapi

https://imag-data.bgs.ac.uk/GIN_V1/hapi

https://wdcapi.bgs.ac.uk/hapi

https://iswa.gsfc.nasa.gov/IswaSystemWebApp/hapi

http://lasp.colorado.edu/lisird/hapi

http://hapi-server.org/servers/TestData2.0/hapi

https://amda.irap.omp.eu/service/hapi

https://vires.services/hapi

https://api.helioviewer.org/hapi/Helioviewer/hapi

https://csatools.esac.esa.int/HapiServer/hapi

https://hapi.spaceweather.knmi.nl/hapi

https://planet.physics.uiowa.edu/das/das2Server/hapi