Network Merchants Inc. Payment Gateway Integration (Direct Post API) What is “NMI Direct Post API”? The Direct Post method is the simplest integration method for both web-based and non web-based payment applications; however, merchants using this integration method should have passed a PCI vulnerability scans before use. For detail regarding this payment method, you can browse https://www.nmi.com/ Network Merchants Inc (NMI) provide solution regarding payment gateways for companies that want to process online transactions in real-time anywhere in the world through unique distribution channel and power of control. The ‘First Call Resolution’, ‘Proprietary, Innovative & Secure Products’ and ‘Non-Compete Guarantee’ are key feature of NMI