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Peak Gateway Docs

Payment gateway API documentation

Authenticate with least privilege

Exchange a location API key for a short-lived OAuth 2.0 token, then request only the scopes required by each integration.

Choose the right payment flow

Use hosted checkout for shopper-facing payments or the transaction APIs for authorized server-to-server operations.

Use an official SDK

Integrate with the TypeScript SDK for web and server applications or the Kotlin Multiplatform SDK for JVM, Android, and iOS.