For merchants & integrators

NexuzPayz Merchant API

Accept GHS payments from your checkout with payment links, mobile money USSD, permanent payment IDs, and signed webhooks.

Getting started

Accept your invitation, create a sandbox API key, and make your first GHS collection.

Start here

Integration guides

Authentication, sandbox vs live, collections, payment IDs, webhooks, and errors.

Start here

API reference

Integration API reference for collections, payment IDs, webhooks, and authentication.

Start here

What you can build

The Merchant API is production-ready for GHS collections in Ghana. Integrate from your ecommerce platform, billing system, or point-of-sale workflow.

• Hosted payment links for web checkout
• Direct MTN / Telecel / AirtelTigo USSD collections
• Permanent USSD payment IDs (*203*id#)
• Signed webhooks for payment confirmation
• Merchant portal for KYC, API keys, and settlement

Already onboarded? Log in to the merchant portal

Sample: create payment link

POST https://api.nexuzpayz.com/api/v1/merchant/collections
Authorization: Bearer sk_test_xxx
Content-Type: application/json

{
  "amount": "99.00",
  "method": "payment_link",
  "merchantReference": "ORD-10042"
}