NMI Payment API
The core NMI Payment API (Direct Post) enables transaction processing across card-present, ecommerce, mobile, and alternative payment methods including Apple Pay and Google Pay. Supports authorization, sale, capture, refund, void, credit, and validation operations with credential-on-file and partial payment support.
Requests are made against the base URL https://secure.networkmerchants.com.
Metadata
The identity and technical contract details declared by the specification.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
#Payments#Transactions#Authorization#Refunds