expo-sdk Documentation
Expo SDK API reference documentation for SDK 55. Covers all Expo SDK modules including sensors, media, storage, UI components, authentication, notifications, navigation, and device APIs.
Quick Reference
| Task | Entry Point |
|---|---|
| Core Expo API | contents/sdk/expo.mdx |
| App config reference | contents/config/app.mdx |
| Navigation / routing | contents/sdk/router.mdx |
| Camera | contents/sdk/camera.mdx |
| Notifications | contents/sdk/notifications.mdx |
| SQLite database | contents/sdk/sqlite.mdx |
| Secure storage | contents/sdk/securestore.mdx |
| Authentication (OAuth) | contents/sdk/auth-session.mdx |
| File system | contents/sdk/filesystem.mdx |
| OTA updates | contents/sdk/updates.mdx |
When to use
Use this skill when the user asks about:
- Expo SDK modules and their APIs (expo-camera, expo-location, expo-notifications, etc.)
- Native device capabilities in Expo (sensors, camera, GPS, biometrics)
- Expo Router file-based navigation
- Expo configuration (app.json, app.config.js, metro config, babel config)
- Expo-specific storage, audio, video, image APIs
- OTA updates with expo-updates
- Push notifications with expo-notifications
- expo-ui components for Android (Jetpack Compose) and iOS (SwiftUI)
How to find information
- First, read
TOC.mdfor complete file listing organized by category - Identify the relevant SDK module based on the user's question
- Read the specific
contents/sdk/{module}.mdxfile for details
TOC.md contains all files organized by directory - always check it first.

