Image-to-Video API Integration

I need help wiring the Kling and Runway image-to-video endpoints into my app so that a single request can accept well over 20 source images without running into the current timeout limit. The job is strictly batch image processing—speed is nice, but reliability and graceful handling of large payloads matter more.

What I expect from you
• A clean, well-documented function or micro-service that takes an array of images, calls the Kling or Runway model as needed (splitting, queueing, or polling if required), and returns one finished video file.
• Automatic retry logic for long jobs so nothing fails silently.
• Clear instructions on any environment variables, API keys, or rate-limit considerations.
• A quick readme or inline comments so I can plug the code straight into my existing stack.

I am open to your choice of language and frameworks as long as they play nicely with the official Kling and Runway APIs. Let me know what questions you have, and tell me about similar integrations you’ve completed so I know we’re on the same page.