ComfyUI-KieAPI

Custom ComfyUI node plugin for Kie AI integrations.

Included in v1

• Kie Nano Banana 2 node
• text-to-image
• optional reference image or reference image batch
• API key via node input, KIE_API_KEY, or local config.json

Install

Place this folder under:

ComfyUI/custom_nodes/ComfyUI-KieAPI

Then restart ComfyUI.

Registry publishing

This repository is prepared for Comfy Registry publishing.

Required GitHub secret

Add a repository secret named REGISTRY_ACCESS_TOKEN with your Comfy Registry publisher API key.

Release flow

• bump the version in pyproject.toml
• push to main
• manually run .github/workflows/publish_action.yml from GitHub Actions
• the node is published through Comfy-Org/publish-node-action

Once published to the Registry, users can install it through ComfyUI-Manager without using Git URL installation.

Configure API key

The node resolves the Kie API key in this order:

1. api_key node input
2. KIE_API_KEY environment variable
3. config.json in this plugin folder

To use a local config file, copy config.example.json to config.json and fill in your key:

{
  "api_key": "your-kie-api-key"
}

config.json is ignored by git.

Node inputs

• prompt
• api_key
• reference_image (optional, accepts a single image or image batch)
• aspect_ratio
• resolution
• output_format
• google_search
• poll_timeout_seconds

Notes

• If you put api_key directly into the node, it may be stored in the workflow JSON.
• Reference images are uploaded through Kie's base64 upload API before the generation task is created.
• When reference_image receives a ComfyUI image batch, every image in the batch is uploaded to KIE in order.
• The node polls Kie's common task detail endpoint until the task succeeds, fails, or times out.