Yes it is. Alex assisted me with this on the GIS Stack Exchange site.I altered the ESRI example that updated the number of instances by adding a reference to the Properties Dictionary and then to the the maxRecordsCount property itself. I did have to modify their script a bit to work within my current script. Here is the portion of code in question: # Deserialize response into Python object dataObj = json.loads(data) httpConn.close() # Edit desired properties of the service dataObj["minInstancesPerNode"] = 1 dataObj["maxInstancesPerNode"] = 10 newdict = dataObj["properties"] newdict["maxRecordCount"] = 5000 # Serialize back into JSON updatedSvcJson = json.dumps(dataObj)