> For the complete documentation index, see [llms.txt](https://docs.onside.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.onside.io/sdk/getting-started.md).

# Getting Started

- [Welcome](https://docs.onside.io/sdk/getting-started/readme.md): An overview of the Onside Payment SDK, designed for easy integration to help you monetize your apps with in-app purchases and subscriptions.
- [Quick Start](https://docs.onside.io/sdk/getting-started/quick-start.md): A minimal, end-to-end OnsideKit integration you can copy-paste: initialize the SDK, fetch a product, buy it, and finish the transaction.
- [Installation](https://docs.onside.io/sdk/getting-started/installation.md): Add the OnsideKit framework to your iOS project with Swift Package Manager, CocoaPods, or a manual framework install.
- [Initializing the SDK](https://docs.onside.io/sdk/getting-started/initialization.md): Initialize OnsideKit, register your callback URL scheme, and forward incoming URLs so the app-to-app login flow can complete.


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