curl --request POST \
  --url https://app.herondata.io/api/rules/ \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "rule": {
    "condition": "equal",
    "date_range": "last_180_days",
    "group": "data_quality_datasource",
    "metric_label": "unique_transactions",
    "name": "notify_if_debt_investment_count_gt_0_last_180d",
    "selector": {
      "is_portfolio": true
    },
    "value": 42.42,
    "value_str": "mrc_12345678ijwdd321d921"
  }
}
'

{
  "rule": {
    "condition": "equal",
    "created": "2026-04-04T13:44:34.070431",
    "date_range": "last_180_days",
    "group": "data_quality_datasource",
    "heron_id": "rul_Ertc5AAxmr2kqUzL2Mvv7K",
    "last_updated": "2026-05-16T13:44:34.070505",
    "metric_label": "unique_transactions",
    "name": "notify_if_debt_investment_count_gt_0_last_180d",
    "selector": {
      "is_portfolio": true
    },
    "value": 42.42,
    "value_str": "mrc_12345678ijwdd321d921"
  }
}