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How to connect Splice MCP to Claude

Connect Claude Web, Desktop and Cowork to Splice MCP. Find punchy drum loops for house, create a stack from these samples, and more using natural language, with authentication handled for you.

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Splice MCP is a sound catalog and sample-management platform for music creators. It helps you discover, organize, and manage licensed sounds using Splice credits.

6 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 Splice account to Claude via Composio Connect, enabling it to find punchy drum loops for house, create a stack from these samples, share your latest stack with collaborator, 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 Splice 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 Splice account

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

For example, ask Claude to:

  • "Find punchy drum loops for house"
  • "Create a stack from these samples"
  • "Share your latest stack with collaborator"

It will prompt you to authenticate and authorize access.

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

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

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

Troubleshooting

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

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

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

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

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

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

3. Why does the Splice authorization link not work?

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

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

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

The Splice connection can expire or lose permission.

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

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

Claude can manage the Splice connection for you.

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

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

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

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

Supported Tools

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

Create stack

Create a stack from an existing sample.

Describe a sound

Search the Splice catalog for sounds matching a natural language description.

Download asset

Purchase and get a presigned download URL for a sound from the Splice catalog.

Prompt to stack

Generate a complete multi-track arrangement of compatible samples from a text description.

Share stack

Generate a public shareable URL for an existing stack.

Update stack

Modify an existing stack.

FRAMEWORKS

How to build Splice MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Splice MCP with ChatGPT

Hermes logo

Hermes

Use Splice MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Splice MCP with Atomic Agent

FAQ

Frequently asked questions

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

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

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