Hey @yingjie.duan.

You are correct. The current result set for the https://amplitude.com/api/3/chart/CHART_ID_HERE/query endpoint doesn’t return the eventType used for that given event segmentation chart. 

However, if you query a user composition chart in this manner, the result set includes the name of user property which was used in that chart. eg.  u'seriesLabels': Lu'gp:<yourCustomUserPropertyName']

Also, the documentation says that “Responses will vary depending on the chart type.” 

I’m curious to know your use case for using this particular endpoint. I have personally used the GET https://amplitude.com/api/2/events/segmentation endpoint to build some custom time series raw data points for some of my projects.

Hi @Saish Redkar 

Thank you for your answer. We want to monitor these eventtypes, and then send reminder emails if they exceed a certain limit.

Happy to help, @yingjie.duan !
You can set custom monitoring alerts for Amplitude charts and trigger emails based on your alert conditions. This is a paid add on for the Growth and Enterprise customers. You can read more on the Insights feature here.