Popular Articles
Introduction to the RMO Merchant API
The RMO Merchant API allows merchants, platforms, and payment partners to securely process transactions across card-present and card-not-present channels using RMO’s unified payments network. This API provides a modern, predictable interface for ...
Authentication & API Security
The RMO Merchant API uses API Keys to authenticate and authorize requests. Every request must include a valid key in the Authorization header. Authentication Header Authorization: Bearer <API_KEY> API Key Types Test Keys: For development and QA Live ...
Understanding Transaction Types
The RMO Merchant API supports multiple types of monetary transactions. Understanding these types ensures proper integration and reduces payment errors. Authorization Checks whether funds are available. No money moves. Capture Transfers funds after a ...
Processing Payments with PaymentCodes
A PaymentCode is a secure 8-character alphanumeric token created by a Member in the RMO app or portal. PaymentCodes provide a safe alternative to storing card details and are ideal for card-not-present payments. Key Features 8-character randomly ...
Recurring Billing with Recurring Authorizations
Recurring Billing with RecurringAuthorizations Article Body (Secure Version) RMO supports compliant merchant-initiated recurring billing through RecurringAuthorizations, which represent a verified agreement between a Member and a Merchant for future ...