TutorialsCopyCopy 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 CodeTutorial: Build a checkout pageTutorial: Your first API callAccount-ManagementTutorial: Onboard a new clientError-HandlingTutorial: Log and monitor API errorsTutorial: Processor-specific errorsTutorial: Retry with exponential backoffIntegration-PatternsTutorial: E-commerce platform integrationTutorial: PCI-compliant checkoutTutorial: White-label payment solutionPayment-CookbookRecipe: ACH for invoicesRecipe: ACH payoutsRecipe: Auth/capture for e-commerceRecipe: ACH returnsRecipe: Authorize and captureRecipe: Cancels and refundsRecipe: Handle declined transactionsRecipe: Handle payment failuresRecipe: Process a one-time saleSecurityTutorial: Secure API keys