SMS API & SMPP to automate high-volume messaging
Quickly integrate OTP, transactional notifications, SMS marketing, and delivery reports into your apps.
SMS API for OTP, transactional, and marketing traffic: a scalable growth foundation
SMS API and SMPP let you handle OTP, transactional, and marketing traffic on a single technical foundation. The benefit is practical: faster integration, better deliverability, and clear status visibility for product, engineering, and operations teams.
Combine SMS API with HLR checks, virtual mobile numbers, and automated marketing campaigns to build a full messaging stack: acquisition, verification, activation, conversion, and retention.
An SMS API architecture built for demanding teams
From first endpoint to deliverability control, every layer is designed to speed up go-live and secure critical messaging traffic.
Instant sending
Fast request processing for OTP, business alerts, and transactional notifications.
Smart routing
Routing quality optimized by destination, traffic profile, and delivery constraints.
API security
Strong authentication, access control, and continuous monitoring for critical traffic.
Business visibility
DLR and KPI visibility to control deliverability, conversion, and cost per action.
How to launch your SMS API in production
A clear 4-step path from testing to large-scale operation with full performance tracking.
Activate API access
Create credentials, configure permissions, and set up a testing environment.
Integrate endpoints
Connect application flows for OTP, alerts, and transactional messaging.
Monitor statuses
Use DLR and webhooks to track deliveries in real time.
Optimize at scale
Tune routing, templates, and segmentation to maximize deliverability and ROI.
Why choose our SMS API?
Built for engineering, product, and operations teams that need reliability and speed.
Throughput
Scale from single sends to millions of SMS.
Delivery Reports
Real-time delivery statuses for your workflows.
Security
Strong API auth and continuous monitoring.
Use Cases
OTP, alerts, marketing, and 2-way support.
SMS API & SMPP FAQ
What is the difference between SMS API and SMPP?
SMS API is ideal for fast app integrations. SMPP is best for very high-throughput and telecom-grade traffic.
Can I send OTP with the SMS API?
Yes, you can trigger transactional OTP with delivery tracking and priority routing.
Do you provide delivery reports?
Yes, DLRs are available to monitor delivery quality and feed your business dashboards.
Is the SMS API suitable for critical use cases (OTP, alerting)?
Yes, with continuous monitoring, optimized routing, and delivery statuses to control each step of message delivery.
How long does it take to integrate Boxis SMS API?
First sends can go live quickly with a simple REST integration, then scale to SMPP when higher throughput is needed.