Airtel Smart API (legacy)
Airtel's original partner developer programme, launched in 2017 and now an unmaintained legacy portal (the site still carries a 2017 copyright). Its public documentation still describes real OAuth 2.0 authorization-code and implicit grant flows and three partner services — carrier-billing charge, subscription activation/deactivation, and an LRN (local routing number) and porting lookup — plus an Aadhaar/UIDAI DigiAuth authentication and e-KYC integration. Production host is not published; documented endpoints use an : placeholder and access is granted only after partner registration, so no specification was harvestable.
Documentation
Documentation
https://openapi.airtel.in/smartapi/#/docs
APIReference
https://openapi.airtel.in/smartapi/#/docs/subscriptions
Documentation
https://openapi.airtel.in/smartapi/#/docs/payment
Documentation
https://openapi.airtel.in/smartapi/#/docs/UIDAI
Documentation
https://openapi.airtel.in/smartapi/#/docs/developerAuth