BT Group — British Telecommunications PLC. UK fixed, broadband, mobile, and wholesale provider (BT, EE, Plusnet, BT Wholesale, BT Global, Openreach) with a public developer programme at developer.bt.com covering charging and crediting, digital identity, fraud prevention, wholesale ordering, and network insights APIs.
- Developer portal: https://developer.bt.com
- Documentation: https://developer.bt.com/api-documentation
- Products: https://developer.bt.com/products