---
title: Fal AI
description: Route Fal AI generative media requests through AI Gateway for observability and control.
image: https://developers.cloudflare.com/dev-products-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/ai-gateway/llms.txt  
> Use this file to discover all available pages before exploring further. 

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# Fal AI

[Fal AI ↗](https://fal.ai/) provides access to 600+ production-ready generative media models through a single, unified API. The service offers the world's largest collection of open image, video, voice, and audio generation models, all accessible with one line of code.

## Endpoint

```
https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/fal
```

## URL structure

When making requests to Fal AI, replace `https://fal.run` in the URL you're currently using with `https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/fal`.

## Prerequisites

When making requests to Fal AI, ensure you have the following:

* Your AI Gateway Account ID.
* Your AI Gateway gateway name.
* An active Fal AI API token.
* The name of the Fal AI model you want to use.

## Default synchronous API

By default, requests to the Fal AI endpoint will hit the synchronous API at `https://fal.run/<path>`.

### cURL example

Terminal window

```
curl https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/fal/fal-ai/fast-sdxl \  --header 'Authorization: Key {fal_ai_token}' \  --header 'Content-Type: application/json' \  --data '{    "prompt": "Make an image of a cat flying an aeroplane"  }'
```

## Custom target URLs

If you need to hit a different target URL, you can supply the entire Fal target URL in the `x-fal-target-url` header.

### cURL example with custom target URL

Terminal window

```
curl https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/fal \  --header 'Authorization: Bearer {fal_ai_token}' \  --header 'x-fal-target-url: https://queue.fal.run/fal-ai/bytedance/seedream/v4/edit' \  --header 'Content-Type: application/json' \  --data '{    "prompt": "Dress the model in the clothes and hat. Add a cat to the scene and change the background to a Victorian era building.",    "image_urls": [      "https://storage.googleapis.com/falserverless/example_inputs/seedream4_edit_input_1.png",      "https://storage.googleapis.com/falserverless/example_inputs/seedream4_edit_input_2.png",      "https://storage.googleapis.com/falserverless/example_inputs/seedream4_edit_input_3.png",      "https://storage.googleapis.com/falserverless/example_inputs/seedream4_edit_input_4.png"    ]  }'
```

## WebSocket API

Fal AI also supports real-time interactions through WebSockets. For WebSocket connections and examples, see the [Realtime WebSockets API documentation](https://developers.cloudflare.com/ai-gateway/usage/websockets-api/realtime-api/#fal-ai).

## JavaScript SDK integration

The `x-fal-target-url` format is compliant with the Fal SDKs, so AI Gateway can be easily passed as a `proxyUrl` in the SDKs.

### JavaScript SDK example

JavaScript

```
import { fal } from "@fal-ai/client";
fal.config({  credentials: "{fal_ai_token}", // OR pass a cloudflare api token if using BYOK on AI Gateway  proxyUrl: "https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/fal"});
const result = await fal.subscribe("fal-ai/bytedance/seedream/v4/edit", {  "input": {    "prompt": "Dress the model in the clothes and hat. Add a cat to the scene and change the background to a Victorian era building.",    "image_urls": [      "https://storage.googleapis.com/falserverless/example_inputs/seedream4_edit_input_1.png",      "https://storage.googleapis.com/falserverless/example_inputs/seedream4_edit_input_2.png",      "https://storage.googleapis.com/falserverless/example_inputs/seedream4_edit_input_3.png",      "https://storage.googleapis.com/falserverless/example_inputs/seedream4_edit_input_4.png"    ]  }});
console.log(result.data.images[0]);
```

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```