Just a side note: the GraphHopper Routing engine is open source: <a href="https:&#x2F;&#x2F;github.com&#x2F;graphhopper&#x2F;graphhopper&#x2F;" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;graphhopper&#x2F;graphhopper&#x2F;</a> but is not able to solve TSP or vehicle routing. For that we&#x27;ve developed jsprit, also open source: <a href="http:&#x2F;&#x2F;jsprit.github.io&#x2F;" rel="nofollow">http:&#x2F;&#x2F;jsprit.github.io&#x2F;</a><p>And both combined to be easily used and very fast in our commercial offering called the GraphHopper Directions API