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OTP SMS to authenticate and verify your users across Africa

Send verification codes over a reliable SMS channel: HTTP API or SMPP integration, delivery status and routing to the mobile operators of African markets.

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What is it?

An OTP (One-Time Password) is a single-use code sent by SMS to check that a user controls the phone number linked to their account or to an operation. It is the mechanism behind sign-up verification, two-factor authentication (2FA) and payment confirmation.

In your infrastructure, your application generates and checks the code; e-MC provides the SMS channel that carries it to the phone. Your system calls the e-MC SMS API (HTTP API or SMPP), our platform routes the message to the recipient’s operator, then returns the delivery status to you.

Why use e-MC for your OTP flows?

  • Traffic handled as OTP. A code has a short lifetime: it must arrive fast, under a recognisable sender. Routing can be configured specifically for this type of traffic.
  • Integration that fits your system. HTTP API for your applications, SMPP for high volumes, on the same platform.
  • Known African operators. Networks listed country by country, and local rules (Sender ID, formats, lead times) explained before you send.
  • Visibility on every message. Delivery reports tell you whether the code arrived.
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Why a company needs it

  • Verify the customer

    At sign-up, a code sent to the declared number proves the user really has access to it. Bank, fintech, e-commerce or gaming platform: you build a reliable customer base from the moment the account is opened.

  • Secure the login

    Two-factor authentication (2FA) adds a step to the login of sensitive accounts. A stolen password is no longer enough to get in.

  • Confirm a sensitive operation

    Transfer, payment, new beneficiary, change of contact details: a code validates the action before it is carried out, and records the user's confirmation.

  • Regain access to an account

    Password reset goes through a code sent to the registered number. Your support team handles fewer manual requests.

How it works

  1. 1

    Your application sends the code

    It generates the OTP and passes it to the e-MC SMS API, over HTTP API or SMPP.

  2. 2

    e-MC delivers it by SMS

    The platform routes the message to the recipient's operator network, with your Sender ID subject to each country's rules.

  3. 3

    The user confirms

    They receive the SMS and enter the code to authenticate or approve the operation. The delivery status comes back to you.

Use cases

  • Account creation and phone number verification
  • Secure login and two-factor authentication (2FA)
  • Approval of payments, transfers and contact detail changes
  • Password reset and account recovery

What the service includes

  • Integration through HTTP API (REST) or SMPP
  • OTP sending: your application generates the code, e-MC delivers it by SMS
  • Delivery reports for every message sent
  • Operator coverage: networks listed country by country, available online
  • Default or custom routing by destination country and network
  • Sender ID for a recognisable sender, subject to each country's rules
  • Technical support for integration and testing
  • Safeguards: traffic monitoring, country restrictions, alerts

Protect your OTPs against fraud

OTP codes attract abuse, notably mass sending to numbers or countries unrelated to your customers. These safeguards contribute to the reliability and security of your OTP flows; they complement your application's own protections (code expiry, attempt limits).

Why use e-MC

  • Routing designed for OTP

    A code has to arrive while the user is looking at the screen. OTP traffic can have its own routing, separate from your campaigns and configured for your destination countries.

  • The status of every code

    Delivery reports tell you whether the SMS arrived. You can offer a resend, or another channel, instead of leaving the user stuck.

  • Coverage centred on Africa

    Operators are listed country by country and available online. Our routes target Africa first, with sending to the rest of the world possible.

  • HTTP API or SMPP, up to high volumes

    The HTTP API (REST) suits your web and mobile applications. SMPP is the mode suited to large volumes and existing platforms, on the same infrastructure.

  • Technical support

    Documentation, a test account and assistance help you connect your applications, including to your databases and information system.

  • Knowledge of operators and markets

    Our team, based in Cotonou (Benin), knows the local constraints: Sender ID registration, formats and lead times vary by country. We tell you before your first sends.

Frequently asked questions

Can we test before going live?

Yes. A test account can be set up on request, to validate your integration and destinations before production. Choose “Request a test account” in the contact form.

Which countries are covered?

Our routes target Africa first, with sending to the rest of the world possible. Operators are listed country by country on the Coverage page. For a specific destination, tell us which: we confirm the route before you send.

How do we integrate OTP sending?

Your application generates the code, then calls the e-MC SMS API over HTTP API (REST) or SMPP. Accounts and documentation are provided on request, with technical assistance for the integration.

Do we get delivery status?

Yes. Delivery reports are available for your messages: you know whether the code arrived and can offer a resend. The documentation provided with your account describes the format.

Can we use a Sender ID?

Yes, so the user recognises your brand. Conditions vary by country and operator: some markets require prior registration. The “Country rules” page gives an overview.

Can we use SMPP for OTP?

Yes. We support SMPP. It is the mode suited to large volumes or an existing platform; the HTTP API remains available for your web and mobile applications.

What volumes can we send?

Tell us your estimated monthly volume and destination countries in the contact form: we size the connection with you. SMPP is the recommended mode for high-volume sending.

Other solutions

Have a project in mind?

Tell us your destination countries, the type of messages and your estimated monthly volume: we will come back with the right solution and routing.

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