AI Text-to-Image Generator with Fal.ai & Moderation

This n8n workflow provides a robust, production-ready API endpoint for on-demand AI image generation from text prompts. It starts with a webhook that receives POST requests containing a 'prompt' field. The prompt is first moderated using OpenAI to detect and block inappropriate content, ensuring safe and compliant usage.

Valid prompts are then submitted to the Fal.ai Flux model via HTTP requests. The workflow intelligently polls the Fal.ai API for generation status until the image is ready, handling asynchronous processing efficiently without blocking.

Finally, it returns a structured JSON response with the generated image URL or data, making it easy to integrate into apps, websites, or services. Benefits include time-saving automation of image creation, built-in safety features, scalability via n8n, and no need for custom server code. Ideal for content creators, developers building creative tools, prototyping UIs, marketing automation, or any app needing dynamic visuals from text.