# Documentation

> Source: https://cross-deck.com/docs/ · Crossdeck developer docs (generated from the published page).

### Getting started

Set up the project, register your apps, and verify the first signal.

- [How identity works — read this first](https://cross-deck.com/docs/how-identity-works/)

- [Create a project](https://cross-deck.com/docs/create-a-project/)

- [Web SDK quickstart · 10 min](https://cross-deck.com/docs/quickstart-web/)

- [iOS (Swift) quickstart · 10 min](https://cross-deck.com/docs/quickstart-ios/)

- [Install with AI — generated prompts](https://cross-deck.com/docs/install-prompts/)

- [API keys & authentication](https://cross-deck.com/docs/api-keys/)

- [Add a domain to Allowed Origins](https://cross-deck.com/docs/allowed-origins/)

- [Migrate an existing product](https://cross-deck.com/docs/migration/)

- [Changelog — every SDK release, one feed](https://cross-deck.com/docs/changelog/)

- [Cookie policy template](https://cross-deck.com/docs/cookie-policy-template/)