The thing happened in China over last 5 years:
- Restaurants run ordering APIs for food delivery companies
- Restaurants run ordering APIs for online menu companies
- Laundries run restocking, and order ready notification APIs
- Logistic companies pretty much became a few layers deep API business with most companies having 0 user facing "frontend"
- Hotels - some will deny you booking if you don't checkin online. Some went even further, and check in you remotely
- Construction companies - now run with client facing construction site management software, and run joint CAD projects with clients
- All kind of odd job service aggregators now do what is called o2o: dog walkers, handymen, porters, cleaners etc
- Many business service companies simply went out of business because their entire businesses were turned into free apps. You can file your taxes with a free app that scans QR code or electronic invoices for example
- All kind of retail store interact with wholesale suppliers only through some EDI stockkeeping or a more advanced API
- And for commerce, things are all self explanatory: JD and Alibaba