curl -X POST "https://api.cryptomate.me/management/companies" \
  -H "x-api-key: $CRYPTOMATE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Acme Corporation",
    "email": "contact@acme.com",
    "webhook_url": "https://api.acme.com/webhooks"
  }'

{
  "name": "Acme Corporation",
  "email": "contact@acme.com",
  "webhook_url": "https://api.acme.com/webhooks"
}

{
  "code": "VAL",
  "message": "Company contact@acme.com already exists."
}