16.9
Sinch Verification API provides phone number verification and multi-factor authentication for app sign-up, login, and password resets.
AndroidiOSWeb
Alternatives to Gupshup
Gupshup combines conversational AI for marketing, commerce and support with agents that use real-time context to book appointments, cancel tickets and handle EMI payments. Engagement rules, business tools, guardrails and a trusted source of truth shape those agents, while human teams can take over complex cases. Its channels include WhatsApp, Instagram, SMS, web and app, RCS and voice. Trigger campaigns, drip journeys, performance metrics, lead qualification and conversation…
26.6
MSG91 provides an SMS API for business communications, including sending and receiving messages.
AndroidiOSWeb
36.3
WebAPI
- 4
2Factor.in OTP API
2Factor.in OTP API is a web service for working with one-time passwords through a REST API and SDKs.
Free planWeb6.2From ₹4,999 a month - 5
Bird Verify
Bird Verify confirms control of a phone number or email address by sending a code and checking the response.
Free planWebAPI6.2Free plan - 6
Plivo Verify
Plivo Verify is an API for sending and validating one-time passwords used in two-factor authentication.
Free planWebAPI6.2Free plan - 7
ValueFirst RCS Business Messaging
ValueFirst RCS Business Messaging lets businesses send branded, conversational messages through RCS.
WebAPI5.7 - 8
Telesign Verify
AndroidiOSWeb5.5 - 9
otp.com
AndroidiOSWeb5.2 - 10
Veriph.One Phone Verification SDK
AndroidiOSWeb5.2 - 115.1
- 12
Infobip 2FA
Web4.8 - 134.8
- 144.7
- 154.7
- 164.6
- 17
OTP Gateway
Web4.6 - 18
OTP.dev
Web4.6 - 194.6
- 204.5
- 214.3
- 224.3
- 234.3