Authentication

Ensure your messages always get delivered.

A multi-channel OTP engine with automated fallback, purpose-built for industries where a missed message means a locked-out customer or a failed transaction.

If the OTP doesn't land, the customer gets no signal. They just can't log in, and your support line takes the call instead. Conversonal solves that.

Request comes in API call with phone + code Primary channel attempt Sent via your first channel if not delivered in time Automatic fallback Retries on the next channel Customer logs in Delivered, one way or another

Two-way when it matters: for flagged transactions, the customer can reply directly in the thread to confirm or deny it, turning a one-way alert into a real conversation.

Multi-channel OTP engine

One integration covering every channel, currently WhatsApp and SMS, with more on the roadmap.

Configurable automated fallback

Set the delay and the conditions (delivery, read status, or both) before it drops to the next channel.

Compliance-first architecture

Messages are generated inside your own secured perimeter and pushed out one-way, with Meta's template approval workflow built in.

International & roaming coverage

Add WhatsApp specifically for customers abroad, where SMS delivery is slow and expensive, without touching your existing domestic setup.

Two-way transaction confirmation

Let customers reply "yes" or "no" to a suspicious transaction alert directly, instead of calling in.

Full delivery audit trail

Every attempt, fallback, and delivery outcome logged for compliance and dispute resolution.

Ready to see our smart OTP engine in action?