httpSMS is a service that lets you use your Android phone as an SMS Gateway to send and receive SMS messages. You make a request to a simple HTTP API and it triggers your Android phone to send an SMS. SMS messages received on your android phone can also be forwarded to your webhook endpoint.
httpSMS's answer:
Go, Vuetify, Google Cloud
SMSGate App - A secure, open-source solution for sending and receiving SMS messages via Android devices. No registration, email, or phone number required - just install and use.
SMSAPI - SMSAPI.com is browser platform for bulk SMS and other SMS marketing solutions.
Twilio SMS - Send and receive text messages globally with Twilio SMS.
Twilio - Brings voice and messaging to your web and mobile applications.
Ozeki SMS Gateway - Ozeki SMS Gateway is a powerful on premise sms gateway software you can install on Windows or Linux. You can send SMS from a database or HTTP. You can provide SMS services using SMPP, UCP, CIMD2, HTTP or using a mobile phone.
seven.io - Professional solutions for your company to send and receive SMS. Online, via gateway, by email or directly in your app. Easy. Fast. Reliable.