Services
One API.
Three
channels.
01
SMS
Transactional & OTP
The universal fallback and the fastest path to any phone on Earth. Direct-to-operator routing across 800+ networks with sender ID and DLT support.
Read the guide →- Sub-2s median delivery✓
- Direct operator routes✓
- DLT / TRAI compliant✓
- 99.95% SLA✓
02
WhatsApp Business API
Verified conversations
Official Meta BSP access. Green-tick verification, template management, two-way flows, and a dashboard your ops team will actually enjoy.
Read the guide →- Official BSP✓
- Template approvals✓
- Two-way messaging✓
- Interactive buttons✓
03
RCS Business Messaging
The next SMS
Branded, verified, and rich — RCS lets you send images, carousels and quick replies inside the native messages app. We handle the carrier onboarding.
Read the guide →- Verified sender✓
- Rich cards & carousels✓
- Read receipts✓
- SMS fallback✓
FAQ
Questions,
answered.
- Which messaging channel should I use for OTPs?
- SMS remains the most universal channel for one-time passwords because it reaches every mobile number without an app install. WhatsApp Business API is ideal where users are already active on WhatsApp and you want branded, verified delivery. RCS is a great upgrade path on Android for richer, verified sender experiences with SMS fallback.
- How fast is SMS OTP delivery through OTP SMS?
- Our direct-to-operator routes deliver OTPs with a sub-2 second median latency across 800+ networks, backed by a 99.95% delivery SLA on tier-1 routes.
- Are you an official WhatsApp Business API provider?
- Yes. OTP SMS is an official Meta Business Solution Provider (BSP). We handle green-tick verification, template approvals, two-way flows, and interactive messaging on the WhatsApp Business Platform.
- Do you support RCS Business Messaging with SMS fallback?
- Yes. We provide verified RCS sender onboarding, rich cards and carousels, quick replies, and automatic SMS fallback when the recipient's device or carrier does not support RCS.
- Is OTP SMS compliant with DLT and TRAI regulations in India?
- Yes. All Indian A2P SMS traffic is routed through DLT-registered principal entity and template scrubbing, and we support sender ID, header, and content template registration end-to-end.
Not sure which
channel fits?
Most of our customers use two or three. We'll help you pick based on your users, geographies and volumes.
