A single API call and the message reaches your customer's phone in seconds. The same endpoint works for WhatsApp and push too — with automatic routing and fallback channel between channels.
From a single OTP code to millions of marketing messages — same API, different configuration.
Verification codes delivered in under 3 seconds, on priority routes. No anti-spam filters, no delays at peak hours.
Order confirmations, delivery updates, payment alerts, booking statuses — triggered automatically from your system.
Send to contact lists with scheduling, personalisation and detailed delivery and click reports.
Receive SMS from customers on your dedicated number, when using the app or dedicated hardware. Instant webhook for each received message — integrates with any system.
No complex configuration, no contracts. Create an account, get your token and send your first SMS in under 10 minutes.
Direct routes with operators. OTPs arrive in under 3 seconds. Separate priority queue for critical messages vs bulk marketing.
Receive instant notification on every status change: sent, delivered, failed. Inbound SMS triggers a webhook within seconds of receipt.
View real-time delivery rate, volume sent and status of every message. Exports, interval filters and per-campaign reports directly from the dashboard.
Links in messages are automatically shortened and tracked. You know exactly how many recipients accessed the link, when and from which operator.
Full Unicode support: send messages with special characters and accents without any issues. We automatically handle encoding and concatenation of long messages without losing characters.
Schedule messages for a specific date and time. Send lists of thousands of contacts via a single API call with asynchronous processing.
Unlike other providers that offer a single operator route, SMSAlert gives you three options — all through the same API.
Send through partner operator networks. Zero hardware investment, works immediately after account activation. Recommended for OTP, notifications and standard campaigns.
An Android phone with your SIM becomes an SMS gateway. Send with your real number, no operator filters, at the standard cost of your phone plan.
Dedicated 4G device in SMSAlert custody, with your SIM. Available 24/7, message queue, autonomous operation. Ideal for high volumes and maximum reliability.
SMS remains the channel with the greatest reach and compatibility — works on any phone, without an app installed, without an account.
OTP for authentication and transaction authorisation. Account alerts, payment notifications, password reset codes — on priority routes with guaranteed SLA.
Order confirmation, delivery update, return notification, abandoned cart reminder. Promotional campaigns to segmented customer lists.
Appointment reminders, consultation confirmation, pre-operative instructions. Inbound SMS for confirmation or cancellation with auto-reply.
Alarm systems, solar panels, smart meters, PLC/SCADA — automatic alert sending on critical events, without human intervention.
Driver and customer notifications, pickup confirmations, route updates. Inbound SMS for special delivery instructions.
Urgent notifications for employees, shifts, security alerts. SMS arrives even when email is ignored or the phone has no internet.
When a device needs to alert a human — without internet, without an intermediary cloud, without human intervention — SMS is the only guaranteed channel. SMSAlert offers both REST API (for systems with IP connectivity) and dedicated GSM modems (for embedded, SCADA, PLC).
Burglar alarm panels, fire detectors, access control systems — send instant SMS on critical events (alarm triggered, power disconnected, door open). Works even when Ethernet is cut.
Solar inverters, diesel generators, UPS units, smart meters — alert on grid failure, production below threshold, overtemperature, abnormal consumption. Direct integration via Modbus/TCP or REST API from local gateway.
Industrial automation systems, production lines, CNC machines — SMS on fault, limit exceeded, emergency stop. Modern PLCs (Siemens, Allen-Bradley, Schneider) can call REST API directly through Ethernet function blocks.
Weather stations, irrigation systems, automated greenhouses, soil sensors — alert on frost, drought, critical humidity or water level in tank. Transmission via GPRS/4G from the field, where WiFi doesn't exist.
GPS trackers, OBD-II loggers, fleet management systems — SMS on geofencing exit, speed exceeded, engine on/off, tachograph exceeded. Inbound SMS for commands (engine lock, position request).
HVAC systems, lifts, fire pumps, building boilers — alert on breakdown, critical temperature, pressure loss. SMS reaches the on-call technician regardless of apps or internet.
Each sent message returns a webhook with the delivery status:
delivered,
failed or
expired. Your system knows if the alert reached the technician — and can automatically escalate to a secondary number.
You get a dedicated number the technician can reply to. The reply arrives via webhook to your system and can trigger actions: receipt confirmation, alarm reset, start/stop command. Bidirectional SMS without an app.
Your device calls
POST /api/v2/message/send via the internet. Or use the SMSAlert GSM hardware modem — it plugs into any socket, connects to WiFi and sends SMS through its own SIM via cloud, without any other server.
Do you have embedded devices, PLC or SCADA systems without IP connectivity?
The SMSAlert GSM modem is a cloud device: it plugs into any socket, connects to WiFi and sends SMS through its own SIM via SMSAlert infrastructure — no PC, no drivers, no complex configuration.
GSM hardware modems → SMSAlert Sync (Android SMS gateway)Each channel has its strengths. SMS is the winner when universal reach and simplicity matter.
You don't have to choose a single channel. SMSAlert chooses for you at each message, according to your rules and AI.
No lengthy forms, no contract, no waiting period.
Authorization: Bearer {token}.
POST /api/v2/message/send with your test number and message. You receive SMS on your phone within seconds.
Have another question? Write to us directly.
queued, sent, delivered,
failed. Full details at
apidocs.smsalert.mobi.
POST /api/v2/message/send works for SMS, WhatsApp Business API and Alertisimo push. You define the routing rules in the dashboard — which channel to send on, under what conditions and which fallback channel kicks in if the first isn't available. One integration, all channels.
No contract, no minimum subscription. Create an account, get your token and send. Pay only for what you use.