StableDiffusion3API (🚫Deprecated)

This node called Stability AI's hosted SD3 API directly from inside ComfyUI - it never ran a model locally at all. It's now sitting in Easy-Use's "🚫 Deprecated" category, which is the pack maintainer's honest signal that you shouldn't be building new workflows around it. If you're here because an old workflow references it, plan to replace it rather than debug it.

What it did, when it worked. Added back in v1.1.5 as an "Easy Stable Diffusion 3 Multiple accounts API Node," this hit Stability's hosted SD3 endpoint over the network using an API key, generating images without any local checkpoint or GPU work on your end. "Multiple accounts" in the changelog description points to the node supporting more than one API key/account, likely to spread requests across accounts and dodge per-account rate limits. model let you pick between sd3 and sd3-turbo, aspect_ratio offered nine standard ratios, and optional_image let you feed a reference image in for image-to-image style generation through the API. positive/negative were plain prompt text, seed and denoise rounded out the standard controls.

Why it's dead. The whole SD3/SD3.5 hosted-API landscape has shifted since this node was written, and the ecosystem's center of gravity has moved on to Flux and locally-run SD3.5 weights, which is almost certainly why the pack maintainer stopped carrying this forward. An API-integration node is inherently more fragile than a local-inference node - it depends on an external service keeping its endpoint, its auth scheme, and its pricing stable, and none of that is under the node author's control. When it breaks, there's often no local fix available at all; the maintainer either has to chase the API's changes or drop the node.

Install. If you're grabbing the pack for its other nodes, install is unchanged:

cd ComfyUI/custom_nodes
git clone https://github.com/yolain/ComfyUI-Easy-Use

or via ComfyUI Manager, search "ComfyUI Easy Use," then restart. This node specifically also needed a Stability AI API key configured to do anything - there's no local dependency to install for it, because there was never any local model.

What to use instead. If you actually have SD3/SD3.5 model weights, Easy-Use's own full loader (easy fullLoader) will run them locally like any other checkpoint, with none of the API dependency. If you specifically want a hosted-API path for SD3-family generation, that now lives outside this pack - check ComfyUI's native API-node support or a currently-maintained integration rather than reviving this one.

Common issues. The failure mode here isn't subtle: point this node at Stability's endpoint today and expect authentication errors, unexpected response formats, or the request simply failing, since the API surface this was built against has almost certainly moved on. Don't spend time debugging API errors from this specific node - the fix is switching to a locally-run loader or a currently-maintained API node, not chasing this one back to life.