> ## Documentation Index > Fetch the complete documentation index at: https://docs.spatius.ai/llms.txt > Use this file to discover all available pages before exploring further. # SDK Capability Matrix > Documented Spatius SDK capability matrix across Web, iOS, Android, Flutter, Python Server SDK, and Go Server SDK. This matrix shows capabilities that are documented in the public reference pages. It is a lookup aid, not a replacement for the platform reference pages. If a cell says **Not documented**, the current docs do not expose a public reference for that capability on that SDK. It does not prove the runtime cannot support it. ## Client SDK capabilities | Capability | Web | iOS | Android | Flutter | | ---------------------------- | ---------------------------------------------------------- | -------------------------------------------------------- | -------------------------------------------------------------- | ---------------------------------------- | | Direct Mode Integration | Documented | Documented | Documented | Documented | | Backend Mode client feed | `yieldAudioData()` / `yieldFramesData()` | `yield(_:end:audioFormat:)` / `yield(_:conversationID:)` | `yield(audioData,end,audioFormat)` / `yield(animations,reqId)` | `yieldAudioData()` / `yieldAnimations()` | | RTC Adapter path | `@spatius/avatarkit-rtc` | See Agora client setup | See Agora client setup | Not documented | | Region config | `region` in `AvatarSDK.initialize()` | `region` in `Configuration` | `region` in `Configuration` | `region` in `Configuration` | | Driving mode enum | `DrivingServiceMode.direct` / `DrivingServiceMode.backend` | `.direct` / `.backend` | `DIRECT` / `BACKEND` | `direct` / `backend` | | Render quality | `RenderQuality` and `setRenderQuality()` | `RenderQuality` and `setRenderQuality(_:)` | `RenderQuality` and `setRenderQuality()` | Not documented | | Render resolution cap | `setRenderResolutionCap()` | `setRenderResolutionCap(enabled:maxHeight:)` | `setRenderResolutionCap(enabled,maxHeight)` | Not documented | | Device capability check | `isDeviceSupported()` / `deviceScore()` | `isDeviceSupported()` / `deviceScore()` | `isDeviceSupported()` / `benchmark()` | Not documented | | Frame starvation behavior | `FrameStarvationMode` | `FrameStarvationMode` | `FrameStarvationMode` | Not documented | | Strict sync mode | `FrameStarvationMode.strictSync` | `FrameStarvationMode` enum | `STRICT_SYNC` enum value | Not documented | | Avatar bitmap export | `AvatarView.exportBitmap()` | Not documented | Not documented | Not documented | | Avatar transform / bounds | `avatarTransform`, `getBoundingRect()` | Not documented | Not documented | Not documented | | `ConnectionState` callback | Direct Mode only | Documented | Documented | Documented | | `ConversationState` callback | Documented | Documented | Documented | Documented | | Interrupt playback | `interrupt()` | `interrupt()` | `interrupt()` | Not documented | | Pause / resume rendering | `pause()` / `resume()` | `pauseRendering()` / `resumeRendering()` | `pauseRendering()` / `resumeRendering()` | Not documented | | Cache management | `AvatarManager` cache methods | `AvatarManager` cache methods | `AvatarManager` cache methods | Not documented | ## Web package split | Package | What it does | Reference | | ------------------------ | ----------------------------------------------------------------------------------------- | ----------------------------------------------------- | | `@spatius/avatarkit` | Core Web AvatarKit SDK for loading, rendering, Direct Mode, and Backend Mode client feed. | [Web SDK Reference](/sdk-reference/web-sdk/reference) | | `@spatius/avatarkit-rtc` | Web RTC transport adapter for LiveKit and Agora providers. | [RTC Adapter](/sdk-reference/web-sdk/rtc-adapter) | | `@spatius/avatarkit-ui` | React components for avatar UI surfaces. | [AvatarKit UI](/sdk-reference/web-sdk/avatarkit-ui) | ## Server SDK capabilities | Capability | Python Server SDK | Go Server SDK | | ------------------------- | ----------------------------- | -------------------------- | | Backend Mode session | Documented | Documented | | Region config | `region` option | `WithRegion(region)` | | Console endpoint override | `console_endpoint_url` | `WithConsoleEndpointURL()` | | Ingress endpoint override | `ingress_endpoint_url` | `WithIngressEndpointURL()` | | Audio input | Documented | Documented | | Motion data callback | Documented | Documented | | Encoded audio callback | Documented | Documented | | LiveKit egress | Documented | Documented | | Agora egress | Documented | Not documented | | Interrupt | `interrupt()` for egress mode | Not documented | | Structured SDK errors | `AvatarSDKError` fields | Documented error handling | ## Integration path support | Integration path | Web | iOS | Android | Flutter | Python Server SDK | Go Server SDK | | ----------------------------------- | -------------- | -------------------------- | -------------------------- | -------------- | ------------------------------ | -------------- | | Direct Mode Integration | Yes | Yes | Yes | Yes | No | No | | LiveKit Agents Integration | Web RTC client | Not documented | Not documented | Not documented | `livekit-plugins-spatius` | No | | Agora Convo AI Integration | Web RTC client | AvatarKit RTC client setup | AvatarKit RTC client setup | Not documented | TEN extension / provider setup | Not documented | | Backend Mode with own transport | Client feed | Client feed | Client feed | Client feed | Yes | Yes | | Backend Mode with LiveKit transport | Web RTC client | Not documented | Not documented | Not documented | LiveKit egress | LiveKit egress | | Backend Mode with Agora transport | Web RTC client | AvatarKit RTC client setup | AvatarKit RTC client setup | Not documented | Agora egress | Not documented | ## Region support All documented SDKs and integrations use the same region names: | Region | Status | | -------------- | --------- | | `us-west` | Default | | `ap-northeast` | Supported | | `cn-beijing` | Supported | See [Regions](/api-reference/regions) for endpoint composition and advanced override notes. ## Reading guidance Use this page to decide where to look next. Use the SDK reference pages for exact signatures and code examples: | Need | Page | | ------------------ | ----------------------------------------------------------------- | | Web exact APIs | [Web SDK Reference](/sdk-reference/web-sdk/reference) | | iOS exact APIs | [iOS SDK Reference](/sdk-reference/ios-sdk/api-reference) | | Android exact APIs | [Android SDK Reference](/sdk-reference/android-sdk/api-reference) | | Flutter exact APIs | [Flutter SDK Reference](/sdk-reference/flutter-sdk/api-reference) | | Python exact APIs | [Python SDK](/sdk-reference/python-sdk/python-sdk) | | Go exact APIs | [Golang SDK](/sdk-reference/go-sdk/go-sdk) | ## Next steps Understand which Reference section owns each kind of API lookup. Decide between Direct Mode, platform integrations, and Backend Mode.