Yes. The FHFA HPI data are freely available for download at https://www.fhfa.gov/hpi
To cite the index in an article or story, we suggest at least an attribution like "Source: FHFA HPI" or "Source: Federal Housing Finance Agency House Price Index (HPI)".
Additional clarifications could be helpful to denote the type of index (purchase-only, alltransactions, expanded-data) and whether the data are adjusted for seasonality or inflation. A more detailed citation might be "Source: FHFA HPI (purchase-only, seasonally-adjusted, nominal)".