Mule 3.8/3.9 (tested just this, probably also works with 3.6/3.7) In case you are working with Mule 4.x, have a look here, there you find a version suitable for Mule 4.
For beta connectors you can download the source code and build it with devkit to find it available on your local repository. Then you can add it to Studio
For direct installation within AnypointStudio, go to Help -> Install new Software... and add the Update site to the list of available sites.
When you use Maven: Released versions of the connector are on Maven Central, so you don't need to add a repository.
The connector can be used for Object structures or XML:
https://travis-ci.org/rbutenuth/assert-object-equals-connector
We use GitHub:Issues for tracking issues with this connector. You can report new issues at this link https://github.com/rbutenuth/assert-object-equals-connector/issues.