Business SMS madedependable at every scale.
InstSMS is a reliable bulk SMS platform that helps businesses send promotional, transactional, and notification SMS across all mobile networks in Sri Lanka through an easy-to-use dashboard or powerful SMS API.
INSTSMS
Verified business sender
Your sender ID INSTSMS has been approved and is ready for business messaging.
9:42 AM
Your Weekend Offers campaign is scheduled for delivery today at 6:30 PM.
9:44 AM
Your payment was received and your messaging balance has been updated successfully.
9:47 AM
A new API integration was authorized for your INSTSMS account.
9:50 AM
Verified notifications from INSTSMS
Campaigns
Focused execution
REST API
Simple integration
Reports
Delivery visibility
Support
Help when needed
Build with the tools your team already uses.
Use the InstSMS REST API from the server-side technology your team already trusts—across web platforms, enterprise systems, automation, and mobile application backends.
PHP
Integrate messaging into modern Laravel, Symfony, or custom PHP applications.
JavaScript
Connect JavaScript services to InstSMS while keeping private credentials securely on the server.
Node.js
Power real-time services, backend APIs, and automation using Node.js.
Python
Connect messaging with scripts, data processing, and backend services.
Java
Reliable integration for enterprise systems and business applications.
.NET
Develop secure messaging features for C# and ASP.NET applications.
Go
Create efficient backend services with lightweight API integration.
React
Create customer-facing experiences backed by secure server-side SMS delivery.
TypeScript
Develop scalable applications with type-safe API integration.
Android
Deliver notifications and messaging directly from Android applications.
Swift
Integrate SMS capabilities into native iOS experiences.
iOS
Connect Apple applications to secure backend services that deliver business SMS.
Business SMS capabilities built for meaningful customer communication.
Replace disconnected messaging tools with one organized workspace built for operations, developers, and support teams.
Move from message creation to delivery with confidence.
InstSMS brings contacts, campaigns, sender IDs, billing, reporting, and support together in one focused business messaging platform.
Simple campaign creation
Create messages, choose contacts or groups, and send immediately or schedule delivery.
Flexible account controls
Keep sender identities, account credit, and essential messaging settings organized as your communication grows.
Secure business platform
Built with strong security, trusted account protection, and reliable controls to keep your business communications safe.
InstSMS platform
A complete workspace for business messaging
InstSMS workspace
Built for connected customer communication
Contacts
People and groups
Campaigns
Send or schedule
Reports
Delivery insights
Billing
Balances and usage
Secure access
Protected account and messaging controls
Account control
Manage balances and sender allocations
Clear reporting
Review campaign and delivery activity
Get your business messaging ready without the complexity.
Move from account setup to active messaging through a guided process designed for clarity, control, and professional use.
Setup
Create your business workspace
Approval
Prepare your sender identity
Launch
Start reaching your audience
Step 1
Create your workspace
Set up your business profile and prepare your account for professional messaging.
Step 2
Set up your sender identity
Request the sender name your customers will recognize and complete the required approval process.
Step 3
Launch your messaging
Create campaigns, reach your audience, and review message activity from one connected platform.
Build better customer communication with InstSMS.
Establish your sender identity and reach customers through campaigns or a secure, developer-ready API.