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How to integrate Splice MCP with Hermes

Connect Hermes 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

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.

This guide explains the easiest and most robust way to connect your Splice account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

Also integrate Splice MCP with

ChatGPT WorkClaude Cowork

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,500+ applications directly into their agent harness — including Hermes. It can:

  • Search and load tools from relevant toolkits on-demand, reducing context usage.
  • Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
  • Manage app authentication end-to-end with zero manual overhead.

Integrating Splice with Hermes

Using Composio Connect CLI

1. Install the Composio CLI

Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

bash
curl -fsSL https://composio.dev/install | bash
Hermes authenticating with Composio

2. Authenticate

Once the CLI is installed, ask Hermes to authenticate with Composio.

3. Connect to Splice

Ask your agent to connect to Splice, or simply request any Splice-related task. Hermes will prompt you to authenticate and authorize access.

4. Done. You're all set with a new Splice connection.

Using Composio Connect MCP

1. Get your MCP URL and API Key

Go to dashboard.composio.dev and copy your Connect MCP URL and API key.

Copy MCP URL and API key from Composio dashboard

2. Open the Hermes config file

bash
nano ~/.hermes/config.yaml

3. Add the Composio Connect MCP server

bash
mcp_servers:
  composio:
    url: "https://connect.composio.dev/mcp"
    headers:
      x-consumer-api-key: "YOUR_COMPOSIO_API_KEY"
    connect_timeout: 60
    timeout: 180

Save with Ctrl + O, Enter, then exit with Ctrl + X.

4. Restart your Hermes agent

Once restarted, ask your agent to connect to Splice or request any Splice-related task. It will prompt you to authenticate and authorize access.

5. Done!

What is the Splice MCP server, 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.

Way Forward

With Splice connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.

From here, you can extend Hermes further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
  • Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.

If you run into trouble or want to share what you've built, join the community or check out the Docs for deeper configuration options.

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 Work logo

ChatGPT Work

Use Splice MCP with ChatGPT Work

Claude Cowork logo

Claude Cowork

Use Splice MCP with Claude Cowork

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. Hermes 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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