you can try using [1] Airflow API (Stable)and try the API [2] and to auth you can use [3]
[1] https://airflow.apache.org/docs/apache-airflow/stable/stable-rest-api-ref.html
[2] https://airflow.apache.org/docs/apache-airflow/stable/stable-rest-api-ref.html#operation/get_dags