🔐 One-Time Password (OTP) Service Overview

The Hisend OTP Service ensures secure, fast delivery of OTPs via SMS and Email.

✅ What Does the OTP Service Do?

Generate encrypted OTPs securely.
Send via SMS (Nigeria only), or Email (Global).
OTP is never stored — only the user sees it.
Receive a reference to use in validation.

⚙️ How It Works

1. Generate an OTP

Use the endpoint below to send an OTP:

GET https://core.hisend.hunnovate.com/api/v1 /otp/send?customer_identifier={customer_identifier}&channel={channel}

Query Parameters:

Parameter	Description
customer_identifier	User’s phone or email.
channel	Where to send: `sms` `email`

View full Send OTP documentation →

Example Request:

GET  https://core.hisend.hunnovate.com/api/v1/otp/send?customer_identifier=example@hunnovate.com&channel=email

Example Response:

{
    "data": {
        "customer_identifier": "example@hunnovate.com",
        "channel": "email",
        "reference": "01jtdre6ga9vqk1ce154p0jjwr",
    },
    "message": "OTP generated successfully",
}

2. Validate the OTP

Use the reference to validate the user’s code:

GET https://core.hisend.hunnovate.com/api/v1/otp/validate?otp_reference={otp_reference}&otp={otp}

Example Request:

GET  https://core.hisend.hunnovate.com/api/v1/otp/validate?otp_reference=01jtdre6ga9vqk1ce154p0jjwr&otp=984205

Payload:

{
    "data": {
        "success": true,
        "customer_identifier": "example@hunnovate.com",
    },
    "message": "OTP verified successfully",
}

View full Validate OTP documentation →

💸 Pricing

Channel	Cost per OTP
SMS	10 Credits per Message
Email	10 Credits Per message

* You are only charged on successful OTP delivery.

🔒 A Trusted, Standalone OTP Solution for Every Organization

Whether you're a startup, SME, or large enterprise, the Hisend OTP service is built to work independently and securely at any scale.

Standalone & Flexible: You don’t need to use other services — this OTP solution works on its own, and can be integrated with your existing systems.
Enterprise-Ready Security: OTPs are encrypted and only readable by the recipient.
Highly Scalable: Built to handle thousands of verifications per second with reliable delivery.
Trusted Infrastructure: Hosted on secure cloud infrastructure with delivery tracking and failover built-in.

When your users need peace of mind and you need efficiency, you can count on Hisend OTP to deliver always.

🚀 Ready to Get Started?

Our OTP service makes user verification simple and secure, no matter the channel. Get Started

← Back to API Reference Send OTP →