Initiate

POST

https://secure.finixpayment.com/v1/api/payment/initiate

This endpoint allows you to initiate a transaction on Finix and returns a checkout URL that can be loaded in a browser to display the payment form to the customer. The checkout URL is valid for 30 minutes.

Request

Header Params

Body Params application/json

Example

{
    "merchantRef": "0954f567-ea8f-49b4-920f-c49174aa2c1f",
    "method": "TRANSFER",
    "currency": "NGN",
    "amount": 100,
    "name": "Lucia Lesch",
    "email": "quinten31@yahoo.com",
    "phone": "82445415208",
    "redirectUrl": "https://www.redirect.com/"
}

Request samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'https://secure.finixpayment.com/v1/api/payment/initiate' \
--header 'MerchantID: FX100001' \
--header 'Signature: 7QbwLbLsS0MAVK3RizeDrNrHZYsKheOVE5yrzH2ectK6uwwT3RMtEJjXHaYi2BFcNUuqMqVknbOc0eIatK0r8BQT87i3U60pvVBblrPG02QkHBJYGBel2pH09oUZ0BNSsphZADxvQqTUVkTXbdaBIZYo8GGY3m96Rb5vUToKEzQ66cm3bduhuxjXf12gXoEgoPFQ8vlpXOAlMxQ5ARMylmNv25Ov29gidi4Z0qjimu96FSWcnxcXvIZfQD7HMzhC' \
--header 'Timestamp: 1750553505' \
--header 'Content-Type: application/json' \
--data-raw '{
    "merchantRef": "0954f567-ea8f-49b4-920f-c49174aa2c1f",
    "method": "TRANSFER",
    "currency": "NGN",
    "amount": 100,
    "name": "Lucia Lesch",
    "email": "quinten31@yahoo.com",
    "phone": "82445415208",
    "redirectUrl": "https://www.redirect.com/"
}'

Responses

🟢200Success

application/json

Body

Examples

SUCCESSFAIL

{
    "code": 200,
    "message": "SUCCESS",
    "data": {
        "transactionRef": "e4b47eed-2f99-4617-94e1-637b6753894e",
        "merchantRef": "1fa498b3-4eec-4aae-94f9-bb47719b88b5",
        "method": "TRANSFER",
        "currency": "NGN",
        "amount": 100,
        "checkoutUrl": "https://www.finixpayment.com/checkout"
    }
}

🟠401Unauthorized

🟠403Forbidden

🔴500Server Error

Webhook

Fetch