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ComfyUI is a modular GenAI inference engine that can be run as a server, accessed via API, extended with custom nodes, and managed from the command line. Most API work follows two steps: get ComfyUI running somewhere, then run workflows against it from your application.

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Use cases

Get an API Key

Create the credential that Cloud APIs, Partner Nodes, and MCP use.

Run Models

Generate with hosted models through Comfy Router.

Run workflows with the SDKs

Call a deployment from the Python or TypeScript SDK.

Deploy ComfyUI workflows

Run your own workflows on managed infrastructure or self-hosted ComfyUI.

Build AI agents

Connect agents to ComfyUI through MCP and the agent tools.

Browse models

Browse the models available on Comfy.org.