Msg91
Cloud communication platform — send SMS, email, WhatsApp, and voice messages via APIs
| What is it | Cloud communication platform — send SMS, email, WhatsApp, and voice messages via APIs |
|---|---|
| Pricing | Unknown |
| Platform | Web Application |
| API | Yes |
| Works with | Integrately, n8n |
| Best for | sending transactional notifications and alerts, running marketing campaigns via email, SMS, and WhatsApp |
| Domain registered | 2008 |
Data updated Aug. 1, 2026
What does Msg91 do?
Msg91 is a cloud communication platform that lets businesses send messages across SMS, email, WhatsApp, RCS, voice, and push notifications through a single set of APIs. It handles transactional alerts, promotional campaigns, OTP verification, and two-way conversations. The platform processes over 2.5 billion API calls per month and is used by companies like Xiaomi, Unacademy, and Razorpay.
The platform is organized into four main applications: Hello (a contact center for ticketing and chat), Campaign (event-based automation), Segmento (customer data platform for segmentation), and OTP (multichannel verification). Each channel — SMS, email, WhatsApp, voice, and virtual numbers — has its own dedicated API and dashboard. Msg91 also includes utility tools like a URL shortener and a knowledge base app. The APIs are documented at docs.msg91.com, and there are integrations with popular platforms.
Msg91 works well for developers who want to add messaging capabilities to their apps without building infrastructure from scratch. It's also useful for marketing teams running email or WhatsApp campaigns, and for customer support teams using the Hello ticketing system. The platform scales from startups to large enterprises, with pricing based on usage per channel.
Key features
What makes it stand outWho is Msg91 for?
Who benefits most from this toolTrust & presence
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