SDK Capability Matrix

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()`	`yieldAudioData(_:end:)` / `yieldFramesData(_:conversationID:)`	`yieldAudioData(audioData, end)` / `yieldFramesData(animations, conversationId)`	`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`
Region default	Automatic selection when unset	Automatic selection when unset	Automatic selection when unset	Automatic selection when unset
Opus audio input	`inputAudioFormat: 'opus'`	`inputAudioFormat: .opus`	`inputAudioFormat = AudioCodec.OPUS`	`inputAudioFormat: AudioCodec.opus`
Direct Mode Opus uplink	On by default (`opusUplinkEnabled`)	On by default (`opusUplinkEnabled`)	On by default (`opusUplinkEnabled`)	On by default (`opusUplinkEnabled`)
Driving mode enum	`DrivingServiceMode.direct` / `.backend` / `.rtc`	`.direct` / `.backend` / `.rtc`	`DIRECT` / `BACKEND` / `RTC`	`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
`@spatius/avatarkit-rtc`	Web RTC transport adapter for LiveKit and Agora providers.	RTC Adapter

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 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
iOS exact APIs	iOS SDK Reference
Android exact APIs	Android SDK Reference
Flutter exact APIs	Flutter SDK Reference
Python exact APIs	Python SDK
Go exact APIs	Golang SDK

Reference Overview

Client SDKs

Server SDKs

Session Token API

Regions & Endpoints

Error Codes

SDK Capability Matrix

Client SDK capabilities

Web package split

Server SDK capabilities

Integration path support

Region support

Reading guidance

Next steps

Reference Overview

Choose your integration path

​Client SDK capabilities

​Web package split

​Server SDK capabilities

​Integration path support

​Region support

​Reading guidance

​Next steps

Reference Overview

Choose your integration path

Client SDK capabilities

Web package split

Server SDK capabilities

Integration path support

Region support

Reading guidance

Next steps