curl -X POST "https://apitree.ai/api/v1/proxy/flux-pro" \
-H "Authorization: Bearer nxs_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"input":{"prompt":"A red apple on a white table","aspect_ratio":"1:1","output_format":"webp"},"version":"609793a667ed94b210242837d3c3c9fc9a64ae93685f15d75002ba0ed9a97f2b"}'