Communications
Twilio
Twilio is how we add messaging and verification to a product — SMS, WhatsApp, voice, and one-time codes that just work.

What it is
Twilio provides APIs for SMS, voice, WhatsApp, and phone-number verification. It handles the carrier-level complexity of reaching users on their phones.
Why we use it
Reliable messaging and phone verification are hard to build and easy to get wrong. Twilio lets us add notifications, OTP login, and reminders quickly, with deliverability we can trust.
Where we put it to work
In the product,
not the slide.
01
OTP & verification
One-time codes for sign-in and phone-number confirmation.
02
Notifications
Transactional SMS and WhatsApp for reminders, alerts, and updates.
03
Voice flows
Programmable calls and IVR where a product needs to reach people by phone.
Pairs with