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POST /v1/checkout/initialize Callable with either a secret key (server-side) or a public key + X-Business-ID header (client-side widgets) — see Authentication.
number
required
Amount in Naira, minimum ₦5
string
Payer’s email address
string
Payment title shown on the checkout page. Defaults to “Payment”
string
Payment description shown on the checkout page
string
Your own unique reference for this payment. Auto-generated (PAY-XXXXXXXXXX) if omitted
string
default:"Fixed"
Fixed, UnderPayment, or OverPayment — whether the customer must pay exactly this amount
number
default:"900"
Seconds until the dynamic account expires, between 60 and 86400 (24h)
Response
Redirect the customer to checkout_url, or embed it directly — that’s exactly what the JS widget and mobile SDKs do under the hood (load it in an iframe/WebView instead of a full redirect).