All-in-One Authentication Platform
Authyo provides OTP authentication, passwordless login, and multi-factor authentication in a single, easy-to-integrate platform. Replace outdated passwords with secure, modern verification.
We’re giving FREE $1 wallet balance - enough to send approx 300 Email OTPs
Secure Authentication with OTP, MFA & Passwordless Login
For SMS, WhatsApp & Voice (India only) pricing, check rates for your country
Authyo secures user logins with a powerful passwordless authentication API for modern apps and websites. Developers can easily implement OTP verification and multi-factor authentication using SMS, WhatsApp, Email, or Voice (India only) to create secure and seamless login experiences without relying on traditional passwords. We also ensure reliable OTP delivery with an intelligent fallback system. If SMS OTP fails, it automatically switches to WhatsApp, Email, or Voice Call (India only), ensuring users always receive their verification code and can log in without interruption.
* No credit card required · OTP fallback enabled by default
Stronger Security with MFA & OTP
Secure user accounts with multi-factor authentication (MFA), OTP verification, and passwordless login. Reduce fraud, prevent account takeovers, and stay compliant with modern security standards.
Better User Experience
Remove password frustration and reduce login failures. Let users sign in quickly using OTP via SMS, WhatsApp, Email, or Voice Call (India only) – no passwords required.
Built to Scale Globally
Authyo supports global OTP delivery with automatic fallback, ensuring high success rates even in regions where SMS delivery fails. Scale your authentication without worry.
Trusted by Businesses Worldwide
From startups to global enterprises, businesses trust Authyo for reliable authentication and OTP delivery. Built to scale securely across regions, industries, and user volumes.
Designed to deliver seamless user experiences without compromising security or performance.
- Secure logins with OTP, MFA, and passwordless authentication
- Seamless onboarding without passwords
- High-delivery OTP with smart fallback (SMS, WhatsApp, Email, Voice – India only)
Authyo WordPress Authentication Plugins
Explore Authyo-powered WordPress plugins designed for seamless OTP verification, Passwordless Authentication API integration, passwordless login, and advanced authentication - built for performance and security.
Customer Stories
Trusted by Growing Businesses for Secure Authentication
See how companies improve login security, OTP delivery, and user experience using Authyo’s passwordless and multi-factor authentication.
Authyo provides reliable OTP authentication with excellent technical support. The API is easy to integrate, and OTP delivery works smoothly across SMS, Email, and WhatsApp.
Authyo helped us improve login security using OTP and multi-factor authentication. OTP fallback options reduced login failures, especially for users in India.
Authyo delivers enterprise-grade OTP authentication with high delivery accuracy. The dashboard is user-friendly, and authentication reliability is excellent.
Created by developers, tailored for developers
Secure Your Users In Just 3 Steps
Integrate Authyo in Minutes
Use our SDKs or APIs to connect Authyo with your app or website.
Choose Your Verification Method
Enable SMS, Email, WhatsApp, or other options tailored to your audience.
Authenticate Seamlessly
Let your users enjoy secure, hassle-free login and verification experiences.
Comprehensive platform for all your identity needs
Authentication Built for Security, Reliability, and Scale
Authyo helps businesses implement passwordless login, multi-factor authentication, and reliable OTP verification with global delivery and smart fallback options — powered by our Passwordless Authentication API.
Passwordless Authentication
Enable secure login without passwords using email or phone number verification. Reduce login friction, prevent credential theft, and improve user experience across devices.
Multi-Factor Authentication (MFA)
Add an extra layer of security with OTP-based multi-factor authentication using SMS, Email, WhatsApp, or Voice Call (India only) for stronger account protection.
Customizable Workflows
Design authentication flows that match your business needs — from login and signup to transaction verification and account recovery.
Global SMS & WhatsApp OTP Delivery
Ensure OTP delivery worldwide with automatic fallback to WhatsApp, Email, or Voice Call (India only) when SMS fails — ideal for high-OTP regions like India and Southeast Asia.
Developer-Friendly Integration
Integrate Authyo quickly using simple APIs and SDKs. Clear documentation and fast setup help developers go live in minutes.
Real-Time Analytics
Track OTP delivery, login success rates, and authentication performance in real time to optimize security and user experience.
OTP delivery
Login success rates
Authentication performance
- SMS
- Voice (India only)
Comprehensive platform for all your identity needs
Multiple Authentication Methods with Smart OTP Fallback
Authyo supports a wide range of verification methods, so users can authenticate through their preferred channel. Additional methods can be integrated based on your business requirements.
Authyo automatically switches between SMS, WhatsApp, Email, and Voice Call to ensure OTP delivery — even when one channel fails. Built-in redundancy keeps OTPs flowing even during service interruptions.* Voice Call is available in India only.
SMS Verification
One-Time Passwords (OTPs) sent via text messages.
Email Verification
Secure codes or links sent to the user’s email.
WhatsApp Authentication
OTPs delivered through WhatsApp for a modern and user-friendly experience.
Passwordless Login
Replace traditional passwords with OTP-based authentication for a smoother login experience.
Flexibility
Choose the most suitable authentication method for your audience — whether it’s a simple OTP sent via SMS or a sophisticated WhatsApp-based flow, Authyo has it covered.
Global Reach
With support for multiple channels and regions, Authyo makes it easy to authenticate users from anywhere in the world.
Certified & Compliant
Trusted Authentication Platform for Secure User Verification
Authyo is GDPR compliant and holds ISO 27001 and ISO 9001 certifications, so your users’ data and your verification flows are in safe hands.
GDPR Compliant Authentication & Data Protection
ISO 27001 Certified Information Security Management
ISO 9001 Certified Quality Management Systems
From the Blog
Latest Insights on Authentication & Security
Guides, updates and best practices on OTP, MFA and passwordless login.
AuthyoAuthyo vs OTPLESS vs otp.com: Which OTP Verification Plugin Fits Your Store or App?
If you’ve ever tried to add OTP login to a WooCommerce or Shopify store, you already know the problem isn’t finding an…
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AuthyoHow to add otp verification to contact form 7
Complete Guide 2026 How to Add OTP Verification to Contact Form 7 in WordPress Secure every form submission with real-time Email, SMS,…
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Two-Factor AuthenticationTop Benefits of Two Factor Authentication for Businesses
Security breaches don’t usually result from a company not having security tools. In fact, most of the time, they occur when a…
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Passwordless AuthenticationHow Passwordless Authentication Improves User Security
A person may forget their password and give up on signing up. Another person who is quite impatient may try resetting their…
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Multi Factor AuthenticationMulti Factor Authentication Trends Businesses Must Know
One user registers on your platform, asks for an OTP, waits a moment, and goes away even before the OTP is sent…
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otp authenticationHow OTP Authentication Reduces Login Fraud in 2026
Each unsuccessful login attempt, a password reset request, or a hijacking attempt results in some inconvenience along the customer journey. For expanding…
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Multi Factor AuthenticationWhy Multi Factor Authentication Is Critical for Security Today
Many companies are unaware of how vulnerable their login systems are until something bad happens. Usually, to give attackers access to user…
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Pricing
Flexible Pricing for Developers & Companies
Start free, pay only for what you use, and save more as you grow.
Pay as you go
Simple usage-based pricing means you don’t get locked into big contracts.
Volume Discounts
Discounts trigger as your usage grows, so you always get a fair price.
Committed use Discounts
Talk with our sales team for access to deeper discounts when you commit to usage.
View Pricing
Free to start · No upfront costs · No credit card required
Start Building Secure Experiences Today
Free to Start
No upfront costs or commitment required.
Future-Ready
Designed to grow with your business.
Frequently Asked Questions
What is OTP authentication?
OTP (One-Time Password) authentication is a secure login method where users receive a temporary code via SMS, WhatsApp, email, or voice (India only) to verify their identity.
How is Authyo different from other OTP providers?
Authyo offers multi-channel OTP delivery with an intelligent fallback system. If SMS fails, OTP is automatically delivered via WhatsApp, email, or voice (India only)—ensuring high delivery rates and better user experience.
Does Authyo support passwordless login?
Yes. Authyo supports passwordless authentication using OTP, magic links, and numeric codes, allowing users to log in without remembering passwords.
What is the difference between OTP and MFA?
OTP uses a single verification step, while MFA (Multi-Factor Authentication) adds extra security by combining OTP with additional factors like device verification or email authentication.
Can I send OTP via WhatsApp?
Yes. Authyo supports WhatsApp OTP along with SMS, email, and voice (India only), making it ideal for Indian and global users where WhatsApp has higher engagement.
Is Authyo suitable for Indian businesses?
Absolutely. Authyo is built for Indian use cases with high SMS reliability, WhatsApp support, DLT compliance, and global scalability.
How long does it take to integrate Authyo?
You can integrate Authyo within minutes using our APIs, SDKs, or plugins. Developer-friendly documentation ensures quick setup.
Is there a free plan available?
Yes. You can start for free with no upfront cost and no credit card required.