Create a new subscriber

POST

/api/subscribers

Create a subscriber, optionally with custom field values.

Request

Authorization

Body Params application/jsonRequired

Examples

Responses

🟢201Created

application/json

Subscriber created

Bodyapplication/json

🟠409Unauthorized

🟠400InvalidCustomFields

🟠401Unauthorized

🟠403EmailNotVerified

Request Example

Shell

JavaScript

Java

Swift

curl --location 'https://api.maildesk.io/api/subscribers' \
--header 'Content-Type: application/json' \
--data-raw '{
    "email": "john.doe@yourcompany.com",
    "firstName": "John",
    "lastName": "Doe",
    "isConfirmed": true,
    "tags": [],
    "customFields": {
        "latest_destination": "Lisbon",
        "trips": 3
    }
}'

Response Example

201 - Example 1

{
    "subscriber": {
        "id": "01ARZ3NDEKTSV4RRFFQ69G5FAV",
        "email": "john.doe@yourcompany.com",
        "firstName": "John",
        "lastName": "Doe",
        "status": "CONFIRMED",
        "tags": [
            "Newsletter"
        ],
        "customFields": {
            "latest_destination": "Lisbon",
            "trips": 3
        },
        "createdAt": "2026-10-07T10:00:00.000Z"
    }
}

Modified at 2026-10-08 06:32:39

API Authentication

Create up to 100 subscribers in a single request