Cloud Save Video

Cloud Save Video is the lazy sibling in this pack's video lineup, and lazy is a compliment here. Where Cloud Fetch Video hands you a VIDEO tensor plus a local file path so you can keep processing locally, this node just submits the job, downloads the finished video, writes it into ComfyUI's output directory with a timestamped filename, and hands you back a string path. If your entire plan for the output is "give me the file," this is the one you want - no VIDEO wrapper to trip over.

How it works

It's a terminal node (an output node in ComfyUI terms), which means it fires even when nothing downstream consumes it. It appends a SaveVideo node to the assembled cloud workflow, submits the whole thing to ComfyUI Cloud via /api/prompt, polls until the job finishes, downloads the video, and saves it to ComfyUI's output directory as filename_prefix plus a timestamp. You get back the local path as a STRING and the cloud prompt_id so you can look the job up in the cloud's history later.

The inputs and outputs that matter

• video (CLOUD_VIDEO) - comes from a node that produced a cloud-side encoded video, like Cloud Create Video. A handle, not a tensor.
• filename_prefix (default cloud_video) - becomes the saved file's name.
• format (auto or mp4) - auto lets the cloud pick; choose mp4 to force MP4. Worth knowing: the final extension is taken from whatever the cloud actually returned, so if you need MP4 specifically, set it rather than trusting auto.
• codec (auto or h264).
• poll_interval (default 3s) and timeout (default 1800s, max 7200s) - how often to check the job and how long to wait before giving up.

Outputs: file_path (STRING) and prompt_id (STRING).

Why you'd reach for it

The README is blunt about the timescales here: Wan 2.2 14B image-to-video with the 4-step LoRA finishes in roughly 70–100 seconds, but without the LoRA it can take 8–10 minutes. That's why the default timeout is a generous 1800 seconds - and for the no-LoRA path at higher resolutions, bump it toward the 7200s cap rather than watch the job die at the wire.

Installing it

Install via ComfyUI Manager (search "ComfyUI-CloudAPI-worker") or:

cd ComfyUI/custom_nodes
git clone https://github.com/Dobidop/ComfyUI-CloudAPI-worker
cd ComfyUI-CloudAPI-worker
cp config.json.example config.json

Paste your API key from https://platform.comfy.org/profile/api-keys into config.json and restart ComfyUI. Dependencies are just requests, Pillow and safetensors; there are no model files to download - those all live cloud-side.

Common issues & troubleshooting

• Long job, impatient timeout - raise timeout on this node itself. It's the terminal, so it owns the whole job's timeout.
• Wrong clip landed in your output folder - if the cloud returns more than one video file, the code saves the first and prints a note. Check the console if the file doesn't match what you expected.
• Want to keep muxing locally? Use Cloud Fetch Video instead, which gives you the VIDEO type for things like VHS_VideoCombine. This node deliberately skips that step - it's the "just save it" path.