Comfy API v2
The versioned HTTP API for running workflows from any language, on any surface. Start here.
v1 Cloud API (deprecated)
The older Comfy Cloud API, still available for existing integrations.
Comfy API Reference
Comfy API Versions: v2 and the Deprecated v1 Cloud API
Compare the Comfy API versions: the recommended v2 HTTP API for running ComfyUI workflows headlessly, and the deprecated v1 Cloud API.
The public API for running ComfyUI headlessly has evolved over time. For new integrations, use Comfy API v2. It is supported on open-source ComfyUI through the API Proxy, Comfy Cloud, and Comfy API deployments on the Developer Platform. Older versions include the v1 Cloud API, which is deprecated.
See also: Comfy API deployments · Comfy SDKs · Getting an API Key