Set contact type from API

Hi, i’m trying to create contacts from api setting contact type Lead/Client

I’m using the API

https://api.infusionsoft.com/crm/rest/v1/contacts

this is the body of the request

{
“email_addresses”: [
{
“email”: “test@test.it”,
“field”: “EMAIL1”
}
],
“family_name”: “Bianchi”,
“given_name”: “Mario”,
“phone_numbers”: [
{
“extension”: “0039”,
“field”: “PHONE1”,
“number”: “3491234567”,
“type”: “Mobile”
}
],
“source_type”: “API”,
“duplicate_option”: “Email”,
“contact_type”: “Client”
}

but response is

{
“message”: “Contact Type is invalid”
}

how can i set the contact type? Lead and Client are not accepted

Solved, the options are Lead for Lead and Customer for Client