Smstools provides an API platform for sending and receiving text messages (SMS, WhatsApp, voice) worldwide. It claims direct connections in over 200 countries, enabling use cases like order notifications, appointment reminders, 2FA codes and emergency alerts. The service is GDPR-compliant, with data stored on EU servers under strict privacy standards. Smstools offers SDKs for languages (PHP, Node.js, Python, etc.) and promises high throughput (99.99% uptime SLA, priority routing for urgent messages). Its site emphasizes ease-of-use and real-time delivery tracking.