Designed for the modern developer’s workflow

Pin Code

Focus on developing your application and let us take care of the user on boarding and authentication. Use the Red Rabbit SMS messaging APIs, the fastest most reliable single API with ready-made logic to build and test PIN generation, delivery, and failover with the most intelligent authentication platform you’ll ever work with.


SMPP (Short Message Peer-to-Peer) is an open, industry standard protocol designed to provide a flexible data communication interface for the transfer of SMS message between different parties and Message Centre (Mobile Operator/SMS Provider). RedRabbit offers SMPP API that allows client to connect their systems using SMPP protocol with RedRabbit SMS Platform to get the benefit of being SMPP connected in terms of connectivity, security, delivery report, multiple session and speed. RedRabbit supports connections via SMPP using the global SMPP Version 3.3 and 3.4 standard.


HLR (Home Location Register) is a central Database that contains some details about the mobile subscriber authorized to use the GSM network. RedRabbit offers on the spot HRL service to enquire about any mobile number to get its detail (Status, belong operator, belong country, etc..) via cloud-based API in an easy and fast way. RedRabbit provide an HTTP API for clients to connect and enquiry about the target mobile number on an easy and straight forward way.

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