MSG91 is a cloud communication platform offering APIs and tools for SMS, WhatsApp, RCS, email, voice and authentication. Its SMS service is presented for businesses and developers sending transactional messages such as order confirmations, appointment reminders and account notifications. The SMS API can retry a failed message over another telecom route, and MSG91 says its service reaches 210+ countries through local operators and rerouting. SMS tools include multilingual and personalised messaging, shortened links, scheduling, delivery tracking, analytics and reporting. For verification, developers can use APIs to send, resend and verify OTPs, or an OTP widget that calls those APIs automatically. MSG91 offers RESTful APIs and lists iOS and Android SDKs; Ruby, Python, PHP and Java are listed as SDK languages. Add-ons are available for WHMCS, Magento and WordPress, and email connections can use Gmail or Outlook. MSG91 is based in Indore, India. India-to-India SMS pricing is volume-based, with personalised pricing up to ₹0.13 per SMS; displayed rates may be subject to 18% GST where noted. The maker states that Walkover Web Solutions Pvt. Ltd. holds ISO/IEC 27001:2022 certification for its cloud communication platform and SaaS, valid until 14 July 2027 subject to surveillance audits.
Who it is for
MSG91 suits businesses and developers sending transactional notices or verification codes across communication channels. Its SMS tools and APIs include routing, delivery tracking and OTP operations.
What is good
- Offers APIs for SMS, WhatsApp, RCS, email, voice and authentication.
- SMS retries can use another telecom route.
- OTP APIs support send, resend and verify.
- Lists iOS and Android SDKs and RESTful APIs.
What to know first
- India-to-India SMS rates are volume-based.
- Displayed rates may have 18% GST where noted.
- Support hours vary by day.
Verdict
MSG91 combines SMS delivery and OTP tools with APIs for several other communication channels. India-to-India SMS pricing depends on volume, and displayed rates may be subject to GST where noted.
Get started with MSG91
- Visit the MSG91 SMS website.
- Choose the communication channel and API tools you need.
- Use the documented RESTful APIs or the iOS and Android SDKs.
- For OTP verification, use the send, resend and verify APIs or the OTP widget.
- Connect supported add-ons or Gmail or Outlook email connections if needed.
Limits to know first
India-to-India SMS plans are listed by message volume, and personalized pricing can go up to ₹0.13 per SMS. Displayed rates are subject to 18% GST where noted.
Questions about MSG91
What does MSG91 cost?
MSG91 uses a paid pricing model. India-to-India SMS rates are volume-based, and personalized pricing can go up to ₹0.13 per SMS; displayed rates may be subject to 18% GST where noted.
Which platforms does MSG91 support?
MSG91 lists Android, iOS, web and API platforms. It also lists iOS and Android SDKs.
Can MSG91 send and verify OTPs?
Yes. It documents APIs to send, resend and verify OTPs, plus a widget that calls those APIs automatically.
Which integrations does MSG91 offer?
MSG91 lists add-ons for WHMCS, Magento and WordPress. Its email connections can use Gmail or Outlook.
Where is MSG91 based?
MSG91 is headquartered in Indore, Madhya Pradesh, India.
MSG91 plans and pricing
All plansCompared on WhatsApp business API providers
- Two-way SMS
- Yes
- MMS support
- Yes
- SDK languages
- Ruby, Python, PHP, Java



