27 February 2026 - OneKhusa Payment Gateway

API updates

This section highlights the new releases and improvements for OneKhusa API

Batch Disbursements

Changed from string response to object response for Reject Batch, Approve Batch, Review, Cancel Batch and Transfer Funds endpoints as follows:

{ 
  "MerchantAccountNumber": 12345678, 
  "BatchNumber": 123456, 
  "CurrencyCode": "MWK", 
  "BatchStatusCode": "A", 
  "ContentType": "CSV", 
  "DataSource": "File", 
  "NumberOfSuccessfulEntries": 1200, 
  "TotalAmountOfSuccessfulEntries": 52000500.00 
} 

Added download batch errors endpoint to download errors identified during batch processing either through Upload Batch File or Upload Batch JSON endpoints.
Added BatchStatusCode property under response payload for Upload Batch File or Upload Batch JSON endpoints.

Fake Data

Changed from string response to object response for Merchant Account Topup endpoint as follows:

{ 
  "transactionReferenceNumber": "CBPC73IQ5U2E", 
  "beneficiaryAccountNumber": 12346198, 
  "beneficiaryName": "MERCHANT SANDBOX", 
  "beneficiaryCurrencyCode": "MWK", 
  "sourceAccountNumber": "5271306", 
  "sourceCustomerName": "ANGEL BAULENI", 
  "sourceReferenceNumber": "JF260209114N", 
  "sourceCurrencyCode": "MWK", 
  "connectorName": "National Bank of Malawi", 
  "amountSent": 50000.00, 
  "amountReceived": 49500.00, 
  "transactionFee": 500.00, 
  "transactionDescription": "Fake Merchant Account Topup", 
  "transactionDate": "2026-02-09T15:12:52.8020476+02:00", 
  "valueDate": "2026-02-09T15:12:52.8020476+02:00", 
  "transactionCode": "BAM", 
  "transactionTypeName": "Account To Merchant", 
  "transactionStatusCode": "S", 
  "transactionStatusName": "Success", 
  "bridgeReferenceNumber": "019c4288-9342-7ebd-a947-6d97d4da77ed", 
  "dateCreated": "2026-02-09T15:12:52.8020476+02:00", 
  "responseCode": "S100", 
  "responseMessage": "Successful transaction" 
} 

C# SDK Release

OneKhusa has officially released the SDK for C# programming language to aid developers to integrate seamlessly with the payment gateway APIs. For more details about the SDK, click here

​API updates

​Batch Disbursements

​Fake Data

​C# SDK Release

API updates

Batch Disbursements

Fake Data

C# SDK Release