You can now use an API to get host monitoring statuses and more

Hello. Mackerel team CRE Inoue (id:a-know) here with another update announcement.

You can now use an API to get host monitoring statuses

With this update, it is now possible to retrieve the monitor associated with the host and its status (monitoring status) using an API. The following are supported.

  • Connectivity monitoring
  • Metric monitoring
  • Check monitoring
  • Anomaly Detection for Roles

Check out the API documentation in the link below.

This API lets you retrieve the information shown in the screenshot of the Web console below.


The purpose of this function is to help you check whether or not your host is being monitored as intended. Be sure to give it a try.

Units can now specified in custom dashboards / value widgets


The value widget is super convenient as it displays the current value of the target metric at an easy-to-read size. With this update, you can now specify an arbitrary unit for this value as well, making it easier to understand what kind of value it is.

The image above uses response time as an example, but posting something like the number of newly registered members or even sales figures on the dashboard might be more interesting. Please give it a try!

mackerel-agent-plugins has been updated(v0.60.2)

This update includes the following revisions. If you're using any of the corresponding plugins, please consider updating.

  • mackerel-plugin-accesslog
    • Cases that have multiple values with retry are now supported in LTSV format log and access log format including apptime:$upstream_response_time.
  • mackerel-plugin-sidekiq
    • Fixed a bug that caused an Invalid value error.

Thank you to everyone who contributed and reported issues!

Mackerel now offers a Telework Support Program

This announcement was previously posted on this blog the other day. (Japanese only)

Due to the current situation, a lot of people have been forced to work in a completely different environment than what they might be used to, and this can be difficult. We want to help such people, so if you’re eligible, please feel free to apply.