Plivo
Paid
Cloud APIs for SMS, voice, WhatsApp and voice AI agents
TextBee
Free tierOpen sourceFrom the lab
Open-source SMS gateway that runs on your Android phone
The gist
TextBee turns an Android phone into an SMS gateway that you control through a REST API. It is for developers and small businesses that want to send and receive texts from their apps without gateway fees.
TextBee alternatives
Compare all 3 →The Gist, weekly