Centili | Merchants & Developers

M-Pesa Integration

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Integrate M-Pesa with a single line of code!

All you need to do:
  1. Make a single API call to initiate the payment
  2. Expose an endpoint to receive charge notifications.

Simple as that!

In order to initiate M-Pesa payment with [CentiliPaymentAPI], you need to send request as HTTPS POST with Content-Type: application/json composed of parameters with associated values.

URL to which request should be posted:

https://api.centili.com/api/payment/1_4/transaction

POST payment request 

POST https://api.centili.com/api/payment/1_4/transaction HTTP/1.1
Host: api.centili.com:443
Content-Type: application/json

{
  "apikey":"7346b125eecdd199c26898e959cdb974",
  "price":"1.00",
  "msisdn":"25466xxxxxx"
}

Initiation parameters:

Parameter
Description
Example
Required as

apikey

Centili issued service key, unique for every payment service. Consists of alphanumeric characters and counts up to 32 characters.

f31a355df6dad07e49ba474db7ff9b07

mandatory

price

End user price for an ongoing
transaction.

1.00

mandatory

Look for Keep in mind callout box underneath this table.

msisdn

Customer mobile phone number.
NOTE: The number must be in E.164 format, excluding the plus ("+") character.

254708374149

mandatory

clientid

Unique identification parameter under your system (pass-through variable).

appID1

optional

userid

Identification of the customer.

usrId1983

NOTE: If the value is not set within payment request, this field will contain MSISDN of the particular customer.

optional

Keep in mind:

"price" parameter can only be an integer as per M-Pesa regulations

POST payment response

Once request is received, Centili will synchronously respond with POST response containing appropriate HTTP response and a list of parameters and values in JSON format:

HTTP/1.1 200 OK
Content-Type: application/json

{
  "status": "ACCEPTED",
  "transactionid": "123456789",
  "clientid": "xxxxxxxxx",
  "sessionStatus": "PENDING",
  "operatorCode": "KE_SAFARICOM",
  "countryCode": "ke",
  "msisdn": "25466xxxxxx",
  "apiKey": "7346b125eecdd199c26898e959cdb974"
}

Response parameters:

Parameter
Description
Example

status

Indicates status of the current request.

Possible values:

  • ACCEPTED
  • CHARGING_FAILED
  • INVALID_REQUEST
  • INVALID_SERVICE
  • UNAUTHORIZED
  • INACTIVE
  • INVALID_MSISDN
  • INVALID_OPERATOR_CODE
  • INVALID_MCCMNC
  • INVALID_PRICE
  • DAILY_LIMIT_EXCEEDED
  • MONTHLY_LIMIT_EXCEEDED

errorMessage

Error description in case of failed transaction request.

Bad request

transactionId

Unique identifier of transaction in Centili system.

123456789

apikey

Centili issued service key, unique for every payment service. Consists of alphanumeric characters and counts up to 32 characters.

f31a355df6dad07e49ba474db7ff9b07

clientId

Unique identification parameter under your system (pass-through variable reference; max length: 256 characters).

appID1

price

End user price for specific transaction.

1.00

countryCode

Two-letter ISO 31661 international standard code.

ke
(for Kenya)

operatorCode

Code of Mobile Network Operator in Centili’s system which end user belongs to.

KE_SAFARICOM
(for Safaricom Kenya)

mcc

Mobile country code.

639
(example for Kenya)

mnc

Mobile network code.

02

msisdn

Customer mobile phone number.
NOTE: The number must be in E.164 format, excluding the plus ("+") character.

254708374149

action

Signifies type of flow for the initiated transaction.

Possible values:

  • URL_REDIRECT
  • PREMIUM
  • PIN
  • HANDSHAKE

NOTE: look for these instructions how to regulate further flow according to data received in our response (underneath this table).

sessionStatus

Indicatior of current state of transaction.

Possible values:

  • PENDING
  • FAILED
  • COMPLETED

urlRedirect

URL to which user should be redirected in order to continue with payment process (delivered only if action=URL_REDIRECT).

premiumInstructions

Instruction containing keyword and shortcode user needs to configure a confirmation MO message before sending (delivered only if action=PREMIUM).

"Please send GO to 1234 in order to confirm purchase."

NOTE: instruction is displayed in a local language. Check our country coverage.

shortCode

Shortcode contained in premium instruction (delivered only if action=PREMIUM).

1234

smsBody

Keyword contained in premium instruction (delivered only if action=PREMIUM).

GO

handshakeInstructions

Text instructing user to reply to the received MT message in order to confirm payment (delivered only if action=HANDSHAKE).

"Please send YES to 1234 in order to confirm purchase."

NOTE: message is sent in a local language. Check our country coverage.

Payment Result Notification

Once transaction reaches a final state Payment Result Notification will be delivered to your system.

Payment Result Notification: https://dev.centili.com/v1.1/docs/payment-result-notification