AI & Machine Learning API Key

fal.ai REST API

Fast, scalable inference for AI image and video models

fal.ai provides serverless GPU infrastructure for running AI models with ultra-low latency. The platform specializes in image generation, video synthesis, and real-time AI inference with support for Stable Diffusion, FLUX, and custom models. Developers use fal.ai for production-grade AI applications requiring speed, reliability, and scalability without managing infrastructure.

Base URL https://fal.run

API Endpoints

Method	Endpoint	Description
POST	`/fal-ai/flux/dev`	Generate images using FLUX.1 [dev] model with advanced prompt following
POST	`/fal-ai/flux-pro`	Generate high-quality images using FLUX.1 [pro] model
POST	`/fal-ai/stable-diffusion-xl`	Generate images using Stable Diffusion XL with custom parameters
POST	`/fal-ai/fast-sdxl`	Ultra-fast SDXL generation optimized for speed
POST	`/fal-ai/recraft-v3`	Generate images with Recraft V3 for design and branding
POST	`/fal-ai/aura-flow`	Generate images using AuraFlow open-source model
POST	`/fal-ai/stable-video`	Generate videos from images using Stable Video Diffusion
POST	`/fal-ai/lora`	Apply LoRA adapters to base models for custom styles
POST	`/fal-ai/face-to-sticker`	Convert face photos into cartoon stickers
POST	`/fal-ai/remove-background`	Remove backgrounds from images using AI segmentation
POST	`/fal-ai/upscale`	Upscale images to higher resolution using AI
GET	`/fal-ai/queue/requests/{request_id}`	Get status and result of a queued generation request
GET	`/fal-ai/queue/requests/{request_id}/status`	Check the current status of a request without fetching full result
POST	`/fal-ai/image-to-image`	Transform images based on text prompts using img2img
POST	`/fal-ai/controlnet`	Generate images with spatial conditioning using ControlNet

Code Examples

curl -X POST https://fal.run/fal-ai/flux/dev \
  -H "Authorization: Key YOUR_FAL_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A serene mountain landscape at sunset, photorealistic",
    "image_size": "landscape_4_3",
    "num_inference_steps": 28,
    "guidance_scale": 3.5,
    "num_images": 1,
    "enable_safety_checker": true
  }'

const response = await fetch('https://fal.run/fal-ai/flux/dev', {
  method: 'POST',
  headers: {
    'Authorization': 'Key YOUR_FAL_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    prompt: 'A serene mountain landscape at sunset, photorealistic',
    image_size: 'landscape_4_3',
    num_inference_steps: 28,
    guidance_scale: 3.5,
    num_images: 1,
    enable_safety_checker: true
  })
});

const result = await response.json();
console.log('Generated image:', result.images[0].url);

import requests
import json

url = 'https://fal.run/fal-ai/flux/dev'
headers = {
    'Authorization': 'Key YOUR_FAL_KEY',
    'Content-Type': 'application/json'
}

payload = {
    'prompt': 'A serene mountain landscape at sunset, photorealistic',
    'image_size': 'landscape_4_3',
    'num_inference_steps': 28,
    'guidance_scale': 3.5,
    'num_images': 1,
    'enable_safety_checker': True
}

response = requests.post(url, headers=headers, json=payload)
result = response.json()

print(f"Generated image: {result['images'][0]['url']}")

Use fal.ai from Claude / Cursor / ChatGPT

Get a hosted MCP endpoint for fal.ai. Paste your fal.ai API key, copy back one URL, drop it into Claude Desktop, Cursor, or any AI client that supports remote MCP. Your AI calls fal.ai directly with your credentials — no local install, works on mobile.

generate_image Generate images from text prompts using FLUX, SDXL, or other fal.ai models with customizable parameters

transform_image Apply image-to-image transformations, background removal, upscaling, or style transfer to existing images

create_video Generate short videos from images or text using Stable Video Diffusion and other video models

check_generation_status Monitor the status and retrieve results of asynchronous AI generation requests

apply_lora_style Apply custom LoRA adapters to base models for specific artistic styles or subjects

Connect in 60 seconds

Paste your fal.ai key → get an MCP URL → paste into Claude/Cursor. Hosted by IOX, encrypted at rest.

Connect fal.ai to your AI →

fal.ai REST API

API Endpoints

Sponsor this page

Code Examples

Use fal.ai from Claude / Cursor / ChatGPT

Connect in 60 seconds

Related APIs