Create a new contact with optional attribution tracking.
| Field | Required | Description |
|---|---|---|
first_name | Yes | First name |
last_name | Yes | Last name |
email | * | Email address |
phone | * | Phone number |
company | No | Company name |
notes | No | Additional notes |
utm_source | No | Traffic source |
utm_medium | No | Marketing medium |
utm_campaign | No | Campaign name |
referral_url | No | Referral page URL |
email or phone is required.API key: Bearer stover_pk_...