The SMS industry is vast, with 23 billion messages sent daily, making it a popular choice for businesses to communicate with millions of people worldwide. To stand out in this industry, SMS APIs must offer customizable and powerful features, such as direct control to build messaging facilities into systems, complex 2-Way SMS messages, marketing messages, verification messages, notifications, alerts, and warnings. Analyzing top SMS APIs like Twilio, Nexmo, Plivo, Telstra, AT&T, Bandwidth, ClickSend, and MessageMedia, the essential features include functionality, compliance with regulations such as TCPA, CTIA Messaging Principles, and best practices for global compliance. Great Developer Experience is a key factor in standing out, including easy-to-consume APIs, shorter development time to integrate, and intuitive documentation, landing pages, and SDKs for popular programming languages. Automation of developer experience is also crucial for smaller teams to compete with larger companies, using Code-Gen Engines to generate components quickly and efficiently.