ComfyUI LMStudio Nodes (Unofficial)

Small ComfyUI custom nodes to connect to a remote LMStudio server through OpenAI-compatible API (/v1).

Nodes

• LMStudio - Connect

  • Connect to a remote LMStudio URL
  • Set API token
  • Pull/load model list automatically (Refresh Models)
  • Test connectivity to server
  • Supports LM Reasonning mode toggle
  • Supports Tooling / MCP toggle

• LMStudio - Text Gen

  • System prompt + user prompt
  • Text generation through the shared connection
  • <think>...</think> blocks are stripped from response output

• LMStudio - Image To Text

  • System prompt + user prompt + image input
  • Image description / caption style generation
  • <think>...</think> blocks are stripped from response output

Quick start

1. Put this folder in ComfyUI/custom_nodes/
2. Install deps:

   pip install -r requirements.txt

3. Restart ComfyUI

Testing

Run the Python unit tests with coverage gate (>=90%):

pytest -q

Notes

• This is not an official LMStudio project.
• Not affiliated with LMStudio.
• It is a quickly vibecoded utility project.

References

• LMStudio OpenAI compatibility docs
• ComfyUI custom node docs