A WMS (Web Map Service) is available to get maps of the following main indicators:

GetCapabilities

WMS layers
Name GetMap GetLegendGraphic
SMI Anomaly (EDO)
Soil Moisture Index Anomaly (GDO)
fAPAR Anomaly (VIIRS) (GDO)
SPI ERA5 Short Term (SPI-1) (GDO)
SPI ERA5 Long Term (SPI-6) (GDO)
Combined Drought Indicator (CDI) v4.0 (EDO)
No Drought and Recovery CDI v.4 (EDO)
Combined Drought Indicator (CDI) v4.0 (all classes)
Low-Flow Index (LFI)
Ensemble Soil Moisture Anomaly (GDO)
GRACE TWS Anomaly (GDO)
Forecasts of Unusually Wet and Dry conditions (Multi-system) - 1 months (GDO)
SPI CHIRPS Short-term (SPI-1) (GDO)
SPI CHIRPS Long-term (SPI-6) (GDO)
SPI GPCC (SPI-1) (GDO)
Snow Mask (EDO)
Risk of Drought Impact for Agriculture (GDO)

Notes for GetMap requests