It was announced October 12th that that you can now integrate Majestic and SEMrush.com and from before Google Search Console. The thoughts behind the idea is to create a bigger picture or 10,000k view.
This might be a useful feature for top level execs that does not want to get into the bolts and grains.
I am gonna try to get them connected myself and see what value added there is to combine the 2.
I already run both tools individually. Link finder Ahrefs.com has been gwoing significantlly and they are moving into SERP scraping. Could this be one of the reason Majestic and SEMRush open up each others API:s.
See how the migration works here.