Azure DevOps has REST API endpoints to get chart images per iteration or for multiple iterations.
Both require a name parameter which allows to ask for a specific chart type.
The official documentation (links above) gives an example for per-iteration requests, a burndown chart. For the multiple-iteration requests, the example given is a velocity chart.
The documentation strongly suggests there are other chart types available, but I was not able to find a list of existing chart types anywhere.
Would anyone have an idea of what other options there are?