FieldFilterInput is an input datatype for specifying the field and value on which to filter — and the operator for comparison. It's used by the EntitySearchInputType datatype, which in turn is used by the entitiesSearch() query field.

Table: FieldFilterInput

ParameterTypeRequiredDefaultStabilityAvailabilityDescription
Some input parameters may be required, as indicated in the Required column. For return values, this indicates that you are assured a value if the field is requested for the results. 
Table last updated: Oct 14, 2026 
fieldEntityFieldTypeyes Short-Term The field on which to filter. See EntityFieldType .
filterStringyes Short-Term The filter name.
operatorFieldFilterOperator  Short-Term The operator for field comparison. See FieldFilterOperator .