Payment service
Last updated
4 months ago
Endpoints
120
Types
Auth Methods
Environments
Klarna API provides Buy Now Pay Later payment solutions with Klarna Payments API, Order Management API, Customer Token API, and Hosted Payment Page.
HTTP Basic Auth with API keys linked to Merchant ID. Rate limits: 50 requests per second for most operations with X-Ratelimit headers. Payment sessions expire after 48 hours, authorization tokens valid for 60 minutes. Supports TLS 1.2 for security. Official SDKs for PHP, iOS (Swift), Android (Kotlin), and JavaScript. Comprehensive sandbox (playground) environment for testing.
APIs cover payment creation, order capture/refund, settlement, disputes, and customer tokens. OpenAPI/Swagger specs available. Ideal for e-commerce checkout, mobile payment integrations, and flexible payment options (pay now, pay later, installments).
