SMSPool

Motivation

SMSPool was created as a passion project to learn new technologies and improve the privacy of our users due to the increasing number of services that require phone verification. With providing your own personal phone number you avoid the risk of your data being sold to third parties, which in turn can cause your phone number being listed on a spam register.

Project Overview

SMSPool is an all-in-one phone number rental service which includes the verification of SMS, eSIMs, and more. The platform features a robust backend system, real-time number management, and seamless integration capabilities. With a full-fledged API, the service enables easy integration and automated workflows, contributing significantly to its scalability and widespread adoption.

Key Features

• Real-time phone number availability and management
• Secure API endpoints for integration
• Automated SMS forwarding system (through webhooks)
• User-friendly dashboard interface
• Multi-currency payment integration
• Advanced rate limiting and security measures
• High-load service (up to 1000 requests per second)
• Deploy eSIMs from our API
• Stripe integration for seamless card payments

Technical Implementation

The application is built with a focus on scalability and performance. The backend infrastructure is hosted on Hetzner servers with Nginx load balancing, ensuring high availability and efficient resource utilization. The backend is powered by PHP with MySQL database, while the frontend features modern JavaScript for dynamic user interactions. Email delivery is handled through AWS SES for reliable communication. As a high-load service, SMSPool is engineered to handle up to 1000 requests per second, serving over 100,000 active users with consistent performance and reliability.