curl --request POST \
--url https://api.olimi.ai/api/external/v1/customer-lists/{customer_list_id}/contacts \
--header 'content-type: application/json' \
--header 'x-api-key: YOUR_API_KEY_FROM_DASHBOARD' \
--data '{
"first_name": "John",
"last_name": "Doe",
"phone_number": "+1234567890",
"gender": "male",
"variants": [
{
"key": "variant_123",
"value": "Premium"
},
{
"key": "variant_456",
"value": "Active"
}
]
}'