Runway: Text to Image

# Python 3.10+: pip install comfy-sdk==0.4.0
import os

from comfy_sdk import Comfy

api_key = os.environ.get("COMFY_API_KEY", "").strip()
if not api_key: raise RuntimeError("Set COMFY_API_KEY")
os.environ.setdefault("COMFY_BASE_URL", "https://cloud.comfy.org")
client = Comfy(api_key=api_key)
workflow = client.workflows.from_json({
    "3": {
        "class_type": "RunwayTextToImageNode",
        "inputs": {
            "prompt": "Close-up portrait of a 20-year-old Nordic girl with fair skin, delicate facial features, and long flowing hair, surrounded by softly drifting strands. Her skin has a gentle, dewy glow (not overly glossy). Vibrant, scattered color spots (pastel pinks, blues, greens) in a diffused, prismatic pattern dance across her face and hair, creating a dreamy, magical atmosphere—like light filtering through a rainbow-hued crystal. The focus is on her expressive eyes (with subtle catchlights mirroring the color spots) and subtle makeup. Ethereal lighting features soft shadows, pastel tones, and a blurred, cinematic depth of field, where the background bokeh echoes the same scattered color palette. Ultra-detailed, 8K quality, fantasy-inspired, with an emotional tone and a whimsical, otherworldly ambiance.",
            "ratio": "1024:1024"
        },
        "_meta": {
            "title": "Runway Text to Image"
        }
    },
    "6": {
        "class_type": "SaveImage",
        "inputs": {
            "filename_prefix": "ComfyUI",
            "images": [
                "3",
                0
            ]
        },
        "_meta": {
            "title": "Save Image"
        }
    }
})

# run() also passes api_key to the partner nodes in this workflow.
job = client.run(workflow, api_key=api_key)