Chipmint

Introduction

Send transactional SMS to your users directly from your smart contract. It's as easy as sendSms(recipient, text).

Preserve privacy of user phone numbers – No need for users to share their phone number. They verify it once and a hash is stored on-chain. They can be reached from any integrated application.

User-first authorization – Users can choose specific authorization parameters for your contract, enabling them to comfortably receive transactional messages without fear of spam.