One API. 180+ countries. Reliable, compliant international SMS delivery for transactional messages, OTPs, notifications, and campaigns. built for businesses operating beyond borders.
International SMS is a text message sent from your business system. in Nepal. to a mobile number in another country. Unlike domestic SMS, it must cross multiple carrier networks and comply with each destination country's regulations.
The right partner ensures your messages are routed correctly, your sender ID is compliant, and your delivery rates stay high. no matter where the recipient is.
Sparrow SMS's International SMS API handles all of this: routing, compliance, fallback, and reporting. from a single endpoint.
A single HTTP POST to Sparrow SMS. with the recipient number, message body, and sender ID.
Sender ID validation, content filtering, encoding checks, and quiet-hour compliance happen automatically.
We route through the best available path. direct carrier connections, smart failover. for maximum delivery rate.
The message reaches the recipient in seconds. Delivery receipts return to your system in real time.
| Domestic SMS | International SMS ✓ | |
|---|---|---|
| Countries | Nepal only | 180+ countries |
| Sender ID options | Standard | Per-country rules |
| Compliance | NTA only | Global + local |
| Routing | Single carrier | Smart multi-route |
| Delivery receipts | ✓ | ✓ Per message |
| Two-way messaging | Limited | ✓ Supported |
Pure text SMS. no app, no internet required. Reaches any mobile number in any country, instantly and reliably.
Send one-time passwords for login, 2FA, and account verification to users in any country. Guaranteed delivery, fast expiry, compliant format. critical for fintech and banking apps operating cross-border.
Order confirmations, payment receipts, shipment tracking, delivery alerts. triggered automatically from your backend. Keeps international customers informed without relying on email or push notifications.
Reach opted-in international audiences with offers, launches, and seasonal campaigns. Segment by country, personalise with dynamic fields, and track opens and conversions by destination.
Reduce no-shows by sending automated reminders to international patients, clients, and guests. Works for healthcare, hospitality, financial services. wherever appointments matter.
Time-sensitive operational alerts. system outages, fraud detection, suspicious login attempts. delivered directly to the recipient's handset even when internet is unavailable.
Win back lapsed international customers with targeted SMS sequences. Use delivery receipts and response tracking to measure engagement across different countries and time zones.
No complex setup. No lengthy contracts. Get your first international SMS sent within your first session.
Register on Sparrow SMS and get immediate access to the international SMS dashboard and API credentials.
Choose your sender type. numeric or alphanumeric. We validate it against destination country rules automatically.
One REST endpoint. Use our SDKs, Postman collection, or direct HTTP calls. Test in sandbox before going live.
Go live and monitor every message in real time. delivery rates, read receipts, failures, and retries. from your dashboard.
Direct connections to carriers across 180+ countries. No grey routes. compliant, traceable, high-quality paths only.
Automatic route selection and failover ensure your messages reach their destination even when one carrier path is degraded.
Sender ID rules, opt-out handling, quiet hours, and content restrictions applied per destination country. automatically.
One endpoint to send international SMS. Full documentation, Postman collection, and sandbox environment included.
Track delivery status, open rates, failures, and latency per message and per country. Export data to your BI tools.
Receive real-time delivery status updates in your own systems via webhook push. No polling required.
Send SMS in any language. Arabic, Chinese, Hindi, Devanagari, and more. Automatic encoding and segmentation handled.
Receive replies from international recipients on virtual numbers. Handle inbound messages in your system via webhook.
No hidden fees. Clear per-message pricing by destination country. Volume discounts available for high-scale senders.
Built for engineering teams who need programmatic, reliable international SMS delivery at scale. with full visibility and control.
// Send an international OTP via Sparrow SMS API POST https://api.sparrowsms.com/v1/intl/send Content-Type: application/json Authorization: Bearer YOUR_API_TOKEN { "to": "+14155552671", "from": "SparrowBiz", "type": "transactional", "message": "Your OTP is 847291. Expires in 5 min." } // Response { "status": "queued", "message_id": "sms_8xKm92nJdPQ", "to": "+14155552671", "country": "US", "cost": "0.042 USD", "segments": 1 }
Whether you are a fintech verifying users in 20 countries or a logistics firm tracking shipments across Asia. international SMS is the universal last-mile communication layer.
OTPs, transaction alerts, loan notifications, and account updates for customers abroad.
Policy renewals, claim status updates, premium reminders sent internationally.
Order confirmations, shipping updates, and delivery notifications for global customers.
Booking confirmations, check-in reminders, and itinerary updates in every timezone.
2FA, user verification, account security alerts for global product users.
Appointment reminders and patient notifications for cross-border health services.
Student enrollment confirmations, exam schedules, and course updates internationally.
Real-time shipment tracking and delivery alerts to recipients in any country.
We are not a reseller. We are Nepal's most experienced SMS platform. with 15 years of messaging infrastructure and direct carrier relationships globally.
Trusted by 7,000+ businesses across Nepal for domestic and international messaging since 2010. Deep local expertise, global reach.
We connect directly to carriers. no grey routes, no third-party resellers. Direct connections mean higher delivery rates and full compliance.
Country-specific sender ID rules, opt-out handling, and content policies applied automatically. You send. we handle the compliance layer.
No hidden fees. Clear per-country pricing before you send a single message. Volume discounts for high-throughput accounts.
Clean REST API, detailed error codes, sandbox environment, webhooks, and documentation that actually explains what went wrong.
Real people in Nepal. Phone, email, and chat support. in Nepali and English. Enterprise accounts get a named account manager.
Every country has different rules for business SMS. Sender ID formats, registration requirements, quiet hours, and content restrictions vary widely.
Sparrow SMS applies the right rules for each destination automatically. so you do not need to maintain a country-by-country compliance checklist. We update our routing and rule engine as regulations change.
This is critical for any BFI, fintech, or enterprise sending time-sensitive messages like OTPs and transaction alerts internationally.
Connect with Sparrow SMS and start delivering international SMS to 180+ countries. Reliable, compliant, and built for scale. from your first OTP to millions of messages a month.