Add Universal AI Provider Nodes with BYOK API Key Support

Hi,

I would like to request a more flexible way to use external AI models inside Remalt through a universal API provider node.

Instead of only adding fixed integrations one by one, Remalt could support a “Bring Your Own Key” setup where users can connect API keys from different AI providers and use those models directly inside flows.

For example, users could connect providers such as:

• OpenRouter

• fal.ai

• Replicate

• Runway

• Kling

• Luma

• Stability AI

• OpenAI

• Anthropic

• Google Gemini

The node should allow users to:

• Add their own API key securely

• Choose or define the API endpoint

• Select model type: text, image, video, audio, or multimodal

• Configure headers and request body

• Map inputs from previous nodes into the prompt or payload

• Handle async jobs, request IDs, status polling, and final media URLs

• Pass the output into the next Remalt node

My main use case is building professional creative production workflows:

Commercial brief → story → storyboard → scene prompts → image references → video generation → final creative output

This would make Remalt much more powerful because users would not be limited to the built-in models. It would allow advanced users to leverage the best available AI models while still using Remalt as the workflow layer.

Best,

Marcus