SMS API for Crypto Exchanges
Send verification codes, withdrawal confirmations and security alerts to your users with a simple REST API and reliable Australian routes.
How crypto exchanges use SMS
A withdrawal without a second factor is a security hole, and a login from an unrecognised device without an alert is how accounts get drained. Crypto exchanges use SMS as a critical layer of account security, verifying logins and withdrawals with a one-time code and alerting users the moment something about their account looks different.
Mobile Message sends from 1.6¢ per message with no monthly fees or contracts, so securing every login and withdrawal with a code costs a fraction of a cent per user. Integrate over a REST API to trigger codes and alerts straight from your platform, and use the same account to run deposit bonus or market update campaigns to users who've opted in.
Login and withdrawal verification
Require a one-time code for a login or a withdrawal, sent the instant it's requested, so a compromised password alone isn't enough to move funds.
KYC and account verification
Confirm a phone number as part of onboarding or identity verification, so a new account is tied to a real, verifiable mobile number.
New device and security alerts
Text a user the moment their account is accessed from a new device or location, so they can act fast if it wasn't them.
Price and market alerts
Notify users when a coin they're watching hits a price target, without needing a push notification they might have turned off.
Deposit bonus and promo campaigns
Run a limited time deposit bonus to your user base with an opt-out built in, the same way you'd run any other marketing campaign.
Bulk SMS at 1.6¢ per SMS
Exceptional SMS pricing starting at just 1.6¢ per message with your first purchase.
100% Direct Delivery
Messages delivered directly to Australian carriers for maximum speed and reliability.
FREE Dedicated Number
Get a free virtual number to send and receive SMS messages, perfect for 2-way chat.
Built for exchanges that treat security seriously
Verification codes, alerts and campaigns over a REST API, from 1.6¢ per message.
Import Your Contacts in Bulk
Easily organise your contacts by uploading spreadsheets and managing them with lists.
Personalise Your Messages
Send personalised messages with each customer's name and other relevant details.
Two-way SMS Messaging
Easily engage with your customers and clients through free two-way messaging.
Automatic Opt-Outs
Include an automated opt-out option to let customers easily unsubscribe from messages.
SMS Message Templates
Create, save, and reuse text messaging templates to reduce time and streamline your communication.
Custom Sender ID
Send your SMS from your business name or a dedicated number to boost your brand identity with customers.
Schedule Messages
Scheduling your SMS messages lets you reach your audience at the perfect time without needing to be online.
Unlimited Users
Give trusted users access to your account, without having to share your login details. Everyone in your team can login.
Add Emojis to Your Messages
Bring your messages to life with emojis. Add personality, emotion and impact to your texts to make them stand out.
Send Messages in Any Language
Send messages in any language your customers speak. With full Unicode support, you can communicate in Chinese, Arabic, Japanese and more.
See it in action
Example messages Australian crypto exchanges send with Mobile Message
Your Coinlight verification code is 719284. It expires in 5 minutes. Never share this code, even with Coinlight support.
Withdrawal request of 0.5 BTC to a new address. If this wasn't you, secure your account immediately. Code: 306711
New login to your Coinlight account from a device in Perth, WA. If this wasn't you, reset your password now.
Deposit $200 or more this week and get a 10% bonus, ends Sunday. T&Cs apply. Opt out: reply STOP
How it works
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Get your API key
Sign up and generate credentials from the dashboard, no approval wait or sales call needed to start sending. -
Send a POST request
One request with your sender, recipient and message. Test messages cost the same low per-message rate, there are no tiers to unlock. -
Trigger codes from your platform
Call the API the moment a login, withdrawal or KYC step needs a code, so users aren't left waiting. -
Scale without new contracts
Send ten codes or ten million, the rate stays the same. No monthly fees, no tiers, just prepaid credit.
Start securing your platform today
Get an API key and send your first verification code in minutes. Pay only for what you send, from 1.6¢ per message, no monthly fees and no contracts.