curl --request GET \
  --url https://app.herondata.io/api/end_users/{end_user_id_or_heron_id}/data_sources \
  --header 'x-api-key: <api-key>'

[
  {
    "created": "2025-07-15T06:13:09.177155",
    "data_source_accounts": [
      {
        "account_id": "202348",
        "anomaly_score": 200,
        "enabled": true,
        "max_date": "2022-01-31",
        "min_date": "2022-01-01",
        "num_transactions": 120,
        "transactions_match_balances": true
      }
    ],
    "heron_id": "dso_eHZURERR84KUwUirTXZTEt",
    "is_enabled": true,
    "last_updated": "2025-08-26T06:13:09.177183",
    "metadata": {
      "filename": "202348_JAN_2022.pdf",
      "status": "processed"
    },
    "reference_id": "pdf_5g5Ywg7rBhdt5wCsHzpLab",
    "status": "new",
    "type": "pdf"
  }
]