To finance an FHA fee, set ufmipFinanced to "Yes":
"criteria": {
"ufmipFinanced": "Yes"
}
To finance a VA fee, set fundingFeeFinanced to "Yes":
"criteria": {
"fundingFeeFinanced": "Yes"
}
To finance a USDA fee, set guranteeFeeFinanced to "Yes":
"criteria": {
"guranteeFeeFinanced": "Yes"
}