Add a player - OneSignal

Register a new Subscription (aka player) to one of your OneSignal apps.

This is a Legacy API. Use Create User or Create Subscription instead.

Headers

Header	Value	Required	Description
`Content-Type`	`application/json`	Yes	The content type of the request.
`Authorization`	`Basic YOUR_REST_API_KEY`	Yes	Your OneSignal REST API key.

Request Body Parameters

Field	Type	Required	Description
`app_id`	string	Yes	Your OneSignal App ID.
`device_type`	integer	Yes	Device platform: 0 = iOS, 1 = Android, 2 = Amazon, 3 = Windows Phone, etc.
`identifier`	string	No	Push token, email address, or phone number.
`language`	string	No	Language code (e.g. “en”).
`timezone`	integer	No	Time zone offset in seconds.
`game_version`	string	No	Version of your app.
`device_model`	string	No	Device model (e.g., “iPhone12,1”).
`device_os`	string	No	Operating system version (e.g., “13.3”).
`ad_id`	string	No	Advertising ID.
`sdk`	string	No	OneSignal SDK version (e.g., “050201” for 5.2.1).
`session_count`	integer	No	Number of times the user has used the app.
`tags`	object	No	Custom tags as key-value pairs.
`external_user_id`	string	No	Your system’s user ID for this device.
`notification_types`	integer	No	1 = subscribed, -2 = unsubscribed, 0 = no permission, etc.

Example Request

POST /api/v1/players HTTP/1.1
Host: onesignal.com
Authorization: Basic YOUR_REST_API_KEY
Content-Type: application/json

{
  "app_id": "your_app_id",
  "device_type": 1,
  "identifier": "abcdef123456",
  "language": "en",
  "timezone": -28800,
  "game_version": "1.0",
  "device_model": "Pixel 4",
  "device_os": "12",
  "ad_id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "sdk": "050401",
  "session_count": 5,
  "tags": {
    "user_type": "free",
    "level": "10"
  },
  "external_user_id": "user123",
  "notification_types": 1
}

Response

{
  "id": "Subscription_id_string"
}

Errors

400 Bad Request – Invalid parameters or missing required fields.
401 Unauthorized – Invalid or missing API key.
403 Forbidden – Not allowed for your account type or plan.