Secure & Seamless Authentication via SMS OTP
Trusted by leading companies. One-time passcodes (OTP) delivered fast, secure, and reliable. Start today with 100 free verifications.
One complete platform
How we ensure consistency and compliance across every verification channel.
Instant Access
Activate your account in under a minute — no paperwork, no waiting — including 100 free SMS OTP credits.
Developer-Friendly
Easy API integration with comprehensive documentation and ready-to-use code samples.
High Reliability
Industry-leading delivery rates (99.9%+) and sub-second SMS OTP latency, backed by redundant global infrastructure.
Custom Visual Identity
Use your own sender ID and branded templates to build trust and deliver a professional experience with every SMS OTP.
Global coverage with your branded sender name
Send SMS codes from your company name to any country, with smart routing and automatic fallback to alternative channels when needed.
Branded message preview
YourBrand: Your verification code is 847291
Expires in 2 minutes. Do not share it.
Branded Sender Name
Use your company name as the sender so users instantly recognize and trust it.
Global Coverage
Reach users in over 200 countries with smart routing and carrier-grade reliability.
Multi-Channel Fallback
Automatic failover to WhatsApp when SMS fails — with no friction for the user.
Custom Templates
Pre-approved templates carrying your brand identity in every verification message.
How it works
From signup to delivering secure OTP codes in four simple steps.
Sign Up
Create your Authentica account.
Set Up Your App
Connect the API
Start Sending OTPs
Create your account
Includes 100 free verifications
What our customers say
The experience was smooth with Authentica — no technical complications, just verification codes delivered fast and securely!
Switching to Authentica helped us scale fast with reliable, multi-channel verification codes. Highly recommended!
The 100 free messages gave us an instant experience — Authentica became our core verification tool.
Get Started
Join hundreds of companies using Authentica to protect their users. Sign up today and get 100 free verifications to start instantly.