How to connect Fal.ai to Claude

Connect Claude Web, Desktop and Cowork to Fal.ai MCP. Generate a photorealistic portrait of a cat, create a 15-second ai-generated promo video, and more using natural language, with authentication handled for you.

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Fal.ai is a generative media platform offering 600+ AI models for images, video, voice, and audio. Developers use Fal.ai for fast, scalable access to cutting-edge generative AI tools.

9 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Fal.ai account to Claude via Composio Connect, enabling it to generate a photorealistic portrait of a cat, create a 15-second AI-generated promo video, synthesize an audio clip saying 'Welcome home!', and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

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Connecting Fal.ai to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Fal.ai account

Back in Claude, ask it to connect to Fal.ai or give it any Fal.ai-related task.

For example, ask Claude to:

  • "Generate a photorealistic portrait of a cat"
  • "Create a 15-second AI-generated promo video"
  • "Synthesize an audio clip saying 'Welcome home!'"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Fal.ai account is ready to use.

What is the Fal.ai Claude Connector, and what's possible with it?

The Fal.ai MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Fal.ai account. It provides structured and secure access so your agent can perform Fal.ai operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for Fal.ai?

The connector can show as connected, but Claude must use it in each Fal.ai conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Fal.ai again.

2. Why does Claude show an MCP server error before Fal.ai connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Fal.ai.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Fal.ai.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Fal.ai authorization link not work?

The Composio connector is one server. Your Fal.ai account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Fal.ai connection.
  • Composio creates a fresh Fal.ai authorization link.
  • Open that link in your browser and finish the Fal.ai sign-in.

4. Why do Fal.ai actions fail after they worked before?

The Fal.ai connection can expire or lose permission.

  • Ask Claude to inspect the Fal.ai connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Fal.ai account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Fal.ai.
  • If the action still fails with a permission error, check that the connected account has that permission in Fal.ai itself.

5. How do I switch to a different Fal.ai account?

Claude can manage the Fal.ai connection for you.

  • Ask Claude to disconnect or delete the current Fal.ai account.
  • Ask Claude to connect Fal.ai again.
  • Open the new Composio authorization link for Fal.ai.
  • Sign in with the other Fal.ai account in the browser.
  • After the account connects, ask Claude to retry the Fal.ai task.

6. Why is my Fal.ai connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Fal.ai connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click and click Clear cache.
  • If Fal.ai tools still do not appear, click , disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Fal.ai.
TOOLS

Supported Tools

Every Fal.ai action and event your agent gets out of the box.

Cancel Queue Request

Tool to cancel a queued or in-progress request in fal.

Estimate Pricing

Tool to estimate pricing for fal.

Get JWKS for Webhook Verification

Tool to retrieve public keys for webhook signature verification.

Get Models

Tool to discover and search fal.

Get Model Pricing

Tool to retrieve unit pricing for model endpoints.

Get Queue Request Result

Tool to retrieve the final result of a completed queue request.

Get Queue Request Status With Logs

Tool to retrieve the current status of a queued request with detailed logging information.

Check Queue Request Status

Tool to check the status of a queued request in fal.

Stream Request Status Updates

Tool to stream request status updates via SSE.

FAQ

Frequently asked questions

With a standalone Fal.ai MCP server, the agents and LLMs can only access a fixed set of Fal.ai tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Fal.ai and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Fal.ai tools.

Yes, absolutely. You can configure which Fal.ai scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Fal.ai data and credentials are handled as safely as possible.

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