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POST
/
subscriptions
/
{external_id}
/
alerts
Create subscription alert(s)
curl --request POST \
  --url https://api.getlago.com/api/v1/subscriptions/{external_id}/alerts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "alert": {
    "code": "storage_threshold_alert",
    "thresholds": [
      {
        "value": 99,
        "code": "warn",
        "recurring": false
      }
    ],
    "alert_type": "billable_metric_current_usage_amount",
    "billable_metric_code": "storage_usage",
    "name": "Storage Usage Alert"
  }
}
'
{
  "alert": {
    "lago_id": "1a901a90-1a90-1a90-1a90-1a901a901a90",
    "lago_organization_id": "1a901a90-1a90-1a90-1a90-1a901a901a90",
    "external_subscription_id": "sub_1234567890",
    "external_customer_id": "cus_0987654321",
    "billable_metric": {
      "lago_id": "1a901a90-1a90-1a90-1a90-1a901a901a90",
      "name": "Storage",
      "code": "storage",
      "recurring": false,
      "created_at": "2022-09-14T16:35:31Z",
      "aggregation_type": "sum_agg",
      "description": "GB of storage used in my application",
      "rounding_function": "round",
      "rounding_precision": 2,
      "expression": "round((ended_at - started_at) * units)",
      "field_name": "gb",
      "weighted_interval": "seconds",
      "filters": [
        {
          "key": "region",
          "values": [
            "us-east-1"
          ]
        }
      ]
    },
    "alert_type": "billable_metric_current_usage_amount",
    "code": "storage_threshold_alert",
    "name": "Storage Usage Alert",
    "previous_value": 1000,
    "last_processed_at": "2025-05-19T10:04:21Z",
    "thresholds": [
      {
        "code": "warn",
        "recurring": false,
        "value": "99.0"
      }
    ],
    "created_at": "2025-03-20T10:00:00Z"
  }
}

Authorizations

​
Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Path Parameters

​
external_id
string
required

External ID of the existing subscription

Example:

"5eb02857-a71e-4ea2-bcf9-57d3a41bc6ba"

Query Parameters

​
subscription_status
enum<string>
default:active

Filter by subscription status. When provided, the subscription is looked up with this status instead of the default active status. Possible values are pending, active, terminated, or canceled.

Available options:
pending,
active,
terminated,
canceled
Example:

"active"

Body

application/json

Create one or more alerts for a subscription

​
alert
object
required

Response

Subscription alert(s) created

​
alert
object
required