Twilio Verify is a widely used API for adding user verification to digital experiences, with support for channels such as SMS, voice, WhatsApp, TOTP, push, Silent Network Auth, and passkeys. But it is not the only option.
For businesses evaluating Twilio Verify alternatives, the right choice increasingly depends on whether you simply need another verification API or want more control over how authentication is orchestrated across the customer journey.
Here are five Twilio Verify alternatives worth considering in 2026.
1. Authsignal
Best for: Advanced authentication orchestration and omnichannel security
Authsignal is a drop-in authentication and orchestration layer designed to work on top of existing identity infrastructure.
It brings passkeys, adaptive MFA, biometrics, OTP, silent network authentication (via Number Verify) and digital credential verification into a single platform, with a no-code rules engine that gives businesses control over when and how customers are challenged. The key difference is orchestration. Rather than treating each verification method as a separate flow, Authsignal lets businesses coordinate authentication and verification across web, mobile, contact center, and in-person journeys.
Teams can use passkeys for routine authentication, step customers up when risk changes, silently verify phone possession without an OTP through Number Verify where supported, introduce identity verification when greater assurance is required, and accept digital credentials within the same authentication layer.
Because Authsignal sits alongside existing identity infrastructure, businesses can introduce these capabilities without replacing their existing identity provider or rebuilding their authentication stack.
Consider Authsignal if: you want a drop-in way to modernize authentication while keeping control over methods, risk, fallbacks, and customer journeys in one orchestration layer.
2. Telesign
Best for: Multichannel verification and phone-based fraud intelligence
Telesign provides verification APIs and digital identity intelligence solutions designed to help businesses verify users and identify potential fraud.
Its Verify API brings together seven verification channels, including SMS, Silent Verify, push, email, WhatsApp, RCS, and Viber. It also supports custom routing and multichannel fallback, allowing businesses to manage verification delivery across different markets.
Alongside verification, Telesign offers phone number intelligence and risk assessment capabilities that can help businesses identify suspicious activity and make more informed verification decisions.
This makes Telesign a relevant option for organizations looking to combine multichannel verification with phone-based fraud signals, particularly during onboarding, sign-in, and account protection.
Consider Telesign if: your requirements center on multichannel verification, phone number intelligence, and fraud risk assessment through APIs.
3. Infobip
Best for: Communications APIs and OTP-based authentication
Infobip is a communications platform offering APIs for customer messaging, engagement, and authentication.
Its two-factor authentication API supports one-time passcodes delivered through SMS, voice, and email, allowing businesses to verify users during account registration, login, and sensitive transactions.
The API handles passcode generation, delivery, and verification, with configurable message templates and application settings to support different authentication requirements.
Infobip is particularly relevant for organizations already using communications APIs or looking to manage OTP-based authentication alongside their wider customer messaging infrastructure.
Consider Infobip if: your authentication requirements are primarily focused on delivering and validating OTPs through established communications channels.
4. Sinch
Best for: Phone number verification and communications APIs
Sinch provides communications APIs and phone number verification capabilities for businesses building digital customer experiences.
Its Verification API supports SMS, flash calls, voice calls, and data verification, giving developers different ways to confirm phone number possession.
Data verification uses mobile carrier infrastructure to verify a phone number without requiring the customer to enter a code, where supported. Sinch also provides SDKs for integrating verification into mobile applications.
This makes Sinch a relevant alternative for businesses looking to build phone verification into sign-up, login, and account protection journeys, particularly where multiple phone-based verification methods are required.
Consider Sinch if: phone number verification and communications APIs are your main priorities, including support for both OTP and carrier-based verification methods.
5. Bird
Best for: Multichannel OTP verification and messaging APIs
Bird is a communications platform offering APIs for messaging, email, and customer verification.
Its Verify API enables businesses to send and validate one-time passcodes through SMS, email, and WhatsApp, with channel routing and fallback options that can be configured for different countries.
Bird also supports verification code generation and validation through its API, reducing the need for developers to build and maintain those processes independently.
For organizations already using Bird's messaging infrastructure, its verification capabilities provide a way to introduce OTP authentication into customer registration, login, and account confirmation workflows.
Consider Bird if: you need API-based OTP verification across SMS, WhatsApp, and email, particularly alongside existing messaging infrastructure.
Which Twilio Verify alternative should you choose?
The right choice depends on the problem you are trying to solve. Telesign, Infobip, Sinch, and Bird offer verification capabilities that can support businesses looking to manage OTP delivery, phone number verification, and communications-based authentication.
However, if your requirements extend beyond verification delivery, it is worth considering how authentication is managed across the entire customer journey.
For businesses introducing passkeys, adaptive MFA, phone verification, identity verification, and digital credentials, the ability to orchestrate these methods across different customer channels becomes increasingly important.
This is where Authsignal stands out. Rather than focusing primarily on verification delivery, Authsignal gives businesses a dedicated authentication orchestration layer to manage methods, risk-based decisions, and customer journeys across web, mobile, contact center, and in-person interactions.
And because it drops into existing identity infrastructure, businesses can modernize authentication without having to replace the systems they already use.
Considering an alternative to Twilio Verify?
See how Authsignal compares with Twilio Verify across authentication, orchestration, integration, and customer experience. Compare Authsignal vs. Twilio Verify →