kling/videos-avatar-image2video, served by Comfy Router from Kling.
Quick start
Create a key at platform.comfy.org/profile/api-keys and export it asCOMFY_API_KEY. The Python and TypeScript snippets use the Comfy SDKs (pip install comfy-sdk, npm install @comfyorg/sdk); the cURL snippet is the same call over raw HTTP.
Model ID: kling/videos-avatar-image2video
Endpoint: POST https://api.comfy.org/v2/models/kling/videos-avatar-image2video
Schema
Input
string
Audio ID Generated via TTS API. Only supports 2-300 second audio generated within the last 30 days. Either audio_id or sound_file must be provided (mutually exclusive).
string (uri)
The callback notification address for the result of this task.Format:
uristring
Customized Task ID. Must be unique within a single user account.
string
required
Avatar Reference Image. Supports Base64 encoding or image URL. Supported formats: .jpg/.jpeg/.png. Max 10MB, min 300px width/height, aspect ratio between 1:2.5 and 2.5:1.
string
default:"\"std\""
Video generation mode. std: Standard Mode (cost-effective), pro: Professional Mode (longer duration, higher quality).Possible values:
std, prostring
Positive text prompt. Can define avatar actions, emotions, and camera movements.
string
Sound File. Supports Base64-encoded audio or accessible audio URL. Accepted formats: .mp3/.wav/.m4a/.aac (max 5MB), 2-300 seconds. Either audio_id or sound_file must be provided (mutually exclusive).
object
boolean
Whether to generate watermarked results simultaneously.
GET /v2/models/kling/videos-avatar-image2video/openapi.json, the same document it validates a call against before the request reaches the provider.
Output
Router does not publish an output schema for this model.Examples
Input
Before you ship
The snippets above are the shortest working call. Three things are the same for every model and are documented once on the Comfy Router headers page: send anIdempotency-Key on every paid call and reuse it when you retry, expect the connection to be held up to Router’s 10 minute deadline, and keep X-Comfy-Request-Id from every response. The SDKs do all three for you; the cURL tab does none of them. On failure, X-Comfy-Error-Type names the bucket, and a 422 means the body failed the model’s schema and was never billed.
Headers
Authentication, idempotency, request IDs, error buckets, retry pacing, spend limits.
Quick Start
Typed error handling in Python and TypeScript, reading the 422, walking the catalog.
Limitations
What Router does not do today, and what to use instead.