How to connect Lmnt to Claude

Connect Claude Web, Desktop and Cowork to Lmnt MCP. Generate a podcast intro in a new voice, list all available ai voices for selection, and more using natural language, with authentication handled for you.

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Lmnt is an AI-powered audio and voice manipulation platform for creative and technical sound work. It makes generating and transforming audio fast, flexible, and accessible for every developer.

8 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 Lmnt account to Claude via Composio Connect, enabling it to generate a podcast intro in a new voice, list all available AI voices for selection, synthesize this script using your preferred voice, 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 Lmnt 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 Lmnt account

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

For example, ask Claude to:

  • "Generate a podcast intro in a new voice"
  • "List all available AI voices for selection"
  • "Synthesize this script using your preferred voice"

It will prompt you to authenticate and authorize access.

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

What is the Lmnt Claude Connector, and what's possible with it?

The Lmnt MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Lmnt account. It provides structured and secure access to your voice and audio management features, so your agent can perform actions like creating voices, synthesizing speech, retrieving or updating voice profiles, and managing your audio assets on your behalf.

  • Custom voice creation and management: Direct your agent to create new voice profiles or update existing ones for use in voice synthesis and transformation.
  • Real-time speech synthesis: Instantly generate lifelike speech from text using your selected voice models for creative or technical projects.
  • Voice library retrieval: Have your agent fetch and list all available voices in your Lmnt account, making it easy to explore or switch between options.
  • Voice info review and deletion: Pull detailed information about any voice profile or let your agent remove unused voices to keep your workspace organized.
  • Account insights and status checks: Allow your agent to retrieve your Lmnt account details, ensuring smooth integration and monitoring of usage or settings.

Troubleshooting

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

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

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

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

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

  • 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 Lmnt.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Lmnt authorization link not work?

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

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

4. Why do Lmnt actions fail after they worked before?

The Lmnt connection can expire or lose permission.

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

5. How do I switch to a different Lmnt account?

Claude can manage the Lmnt connection for you.

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

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

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

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click and click Clear cache.
  • If Lmnt 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 Lmnt.
TOOLS

Supported Tools

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

Create Voice

Creates a custom voice in LMNT by training on uploaded audio samples.

Delete Voice Info

Deletes a voice from your LMNT account.

Generate Speech With Metadata

Generates speech from text and returns JSON with base64-encoded audio and optional word-level timing metadata.

Get Account

Retrieves account information including subscription plan details and current usage statistics.

Get Voice Info

Gets metadata for a specific LMNT voice, including active status, supported languages, and plan availability.

Get Voices List

Retrieves a list of available voices from LMNT.

Synthesize Speech

Synthesizes speech from text using LMNT's AI voices.

Update Voice Info

Updates information about a specific voice in LMNT.

FAQ

Frequently asked questions

With a standalone Lmnt MCP server, the agents and LLMs can only access a fixed set of Lmnt tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Lmnt 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 Lmnt tools.

Yes, absolutely. You can configure which Lmnt 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 Lmnt data and credentials are handled as safely as possible.

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