ConceptsCopyCopy for LLMCopy page as Markdown for LLMsView as MarkdownOpen this page as MarkdownOpen in ChatGPTGet insights from ChatGPTOpen in ClaudeGet insights from ClaudeConnect to CursorInstall MCP server on CursorConnect to VS CodeInstall MCP server on VS CodeConceptsAccount-HierarchyAbout clients and resellersAbout users and rolesApi-FundamentalsError handlingAboutReefpay APIsRequest and response structureAbout RESTful designPayment-IndustryAbout the evolution of paymentsAbout electronic paymentsAbout card networks and interchangeAbout the role of gatewaysSecurity-ComplianceAbout data protectionAbout fraud preventionAbout PCI-DSS complianceTokenizationAbout stored payment methodsAbout tokenizationTransactionsAbout ACH/bank account paymentsAbout batch settlementAbout cancels and refundsAbout sale vs. authorizationAbout the transaction lifecycle