curl --location '/ai/generate-cold-emails' \
--header 'x-workspace;' \
--header 'x-api-key: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
"prompt": "string",
"numberOfVariants": 3
}'{
"emails": [
{
"subject": "string",
"body": "string"
}
]
}