Mackerel Support About monitoring Monitoring operations Is it possible to download various data that is registered in Mackerel in formats such as csv? Data that is registered in Mackerel can be retrieved in JSON format using Mackerel's Web API (other methods are not supported). See the API documentation for more details. Mackerel API Documents Related articles Is it possible to download metrics and monitors? Calculating the number of hosts Is it possible to monitor network devices? What is Mackerel's IP address and port number? How do the Mackerel and the mackerel-agent communicate?