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Mono Lookup

A summary of Mono Lookup Products

Keyu Ubi avatar
Written by Keyu Ubi
Updated over 7 months ago

Mono Lookup is a group of APIs that makes it possible for partners to look up customers’ account information using their BVN, NIN, or bank account number.

With the Lookup API, you can also carry out Know-Your-Customer (KYC) and Know-Your-Business (KYB) activities. Mono Lookup simply fetches information from a valid, government-issued ID number.

N.B. You will be required to authorize all API calls with your Mono Secret Key. This article will show you how to find your secret Key.

Types of Lookup

  • BVN Lookup (Identity and Bank account details)

  • Account Lookup

  • CAC Lookup (Business Name, Shareholder details, Previous Address, Change of Name, Secretary and Directors)

  • Address Lookup

  • International passport Lookup

  • NIN (National Identification Number) Lookup

  • TIN (Tax Identification Number) Lookup

  • Driver's License Lookup

BVN Lookup (Identity details)

This endpoint is used for verifying users using their Bank Verification Number. There are three stages for the verification process:

  1. Initiate Lookup

  2. Verify OTP

  3. Fetch Details

Initiating this endpoint requires:

  • The BVN of the user

  • Session ID

  • OTP

  • Your Mono Secret Key

Initiate Lookup


The Response is similar to the message below


Verify OTP


The Response is similar to the message below


Fetch Details


The Response is similar to the message below:

BVN Lookup (Bank account details)

This endpoint is used for retrieving all accounts connected to a BVN.
There are three stages for the verification process:

  1. Initiate Lookup

  2. Verify OTP

  3. Fetch Details

For this, you simply need:

  • The BVN of the user

  • Scope (bank_accounts)

  • Session ID

  • OTP

  • Your Mono Secret Key

Initiate Lookup


The Response is similar to the message below


Verify OTP


The Response is similar to the message below


Fetch Details


The Response is similar to the message below:

This Endpoint is used to verify the existence of an account, whether a business or individual account. Initiating this endpoint requires:

  • An Account Number

  • nip_code: This can be retrieved from our NIP bank listing api

  • Your Mono Secret Key

The Response is similar to the message below

CAC Lookup (Business Name)

This Endpoint is used to verify the existence of a business name.

Initiating this endpoint requires:

  • A Business Name

  • Your Mono Secret Key

The Response is similar to the message below

CAC Lookup(Shareholder details)

This Endpoint is used to retrieve the shareholder information of a business.
Initiating this endpoint requires:

  • A CAC ID

  • Your Mono Secret Key


The Response is similar to the message below

CAC Lookup(Previous Address)

This Endpoint is used to check previous company address.
Initiating this endpoint requires:

  • A CAC ID

  • Your Mono Secret Key


The Response is similar to the message below

CAC Lookup(Change of Name)

This Endpoint is used to check the history of a business' name change
Initiating this endpoint requires:

  • A CAC ID

  • Your Mono Secret Key


The Response is similar to the message below

CAC Lookup(Secretary)

This Endpoint is used to search for the company secretary
Initiating this endpoint requires:

  • A CAC ID

  • Your Mono Secret Key


The Response is similar to the message below

CAC Lookup(Directors)

This Endpoint is used to search for the company directors
Initiating this endpoint requires:

  • A CAC ID

  • Your Mono Secret Key

The Response is similar to the message below

This endpoint is used to confirm the validity of house addresses and the house owners, ensuring that the provided address corresponds to a real location.
Initiating this endpoint requires:

  • Electricity meter_number

  • address

  • Your Mono Secret Key

The Response is similar to the message below

This endpoint is used to validate the authenticity and retrieve comprehensive details associated with the National Identification Number (NIN) of your customer.


Initiating this endpoint requires:

  • NIN

  • Your Mono Secret Key

The Response is similar to the message below

This endpoint is used to verify the tax identification number of an entity and obtain critical tax-related information.

Initiating this endpoint requires:

  • Tax identification number

  • Channel

  • Your Mono Secret Key

The Response is similar to the message below

This endpoint is used to validate and retrieve details from the international passport documents of your users.

Initiating this endpoint requires:

  • passport_number

  • last_name

  • Your Mono Secret Key

The Response is similar to the message below

This endpoint is used for verifying users using their driver's license number. Initiating this endpoint requires:

  • The license number of the user

  • The date of birth

  • The first and last name

  • Your Mono Secret Key

The Response is similar to the message below

This endpoint is used for retrieving a customer credit history directly from the two largest credit bureaus in Nigeria- Credit Bureau Limited (crc) and First Central Credit Bureau (xds) using only their BVN. This retrieval is subject to customer consent. Initiating this endpoint requires:

  • The BVN of the user

  • The Credit provider (crc or xds)

  • Your Mono Secret Key


The Response is similar to the message below

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