Transactional SMS API: The Developer Guide for Production Apps
A researched developer guide to transactional SMS APIs: when to use them, how delivery really works, what to store, and how to avoid reliability traps.
Author
Notilify Team
The Notilify team writes practical notes for engineers and founders building OTPs, alerts, and transactional messaging into production apps.
Posts by Notilify Team
OTP SMS Delivery Best Practices: Reliability, Security, and UX
A practical, researched checklist for OTP SMS delivery: code lifetime, resend windows, rate limits, anti-abuse controls, templates, fallback channels, and delivery tracking.
SMS Webhooks and Delivery Tracking: What to Store and Why
A developer guide to SMS delivery webhooks: event states, signature verification, idempotency, retry-safe handlers, storage schema, and support timelines.