OSRM - Utilities, Application Utilities, and Mapping APIs
FRRouting - FRRouting (FRR) is an IP routing protocol suite for Linux and Unix platforms which
pgRouting - Repository contains pgRouting library. Development branch is "develop", stable branch is "master" - pgRouting/pgrouting
VyOS - VyOS in an open source Linux-based operating system sold and distributed by Sentrium corporations. It is geared toward IT specialists and network administrators for the purpose of securing network and company data... read more.
Google Maps - Find local businesses, view maps and get driving directions in Google Maps.
OpenRouteService.org - The spatial services API with plenty of features.