How to Use the Chord Constructor MCP in Claude

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Connect Chord Constructor MCP to Claude Desktop

Create your Vinkius account to connect Chord Constructor to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Chord Constructor with Claude Desktop

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Perplexity

Decompose Complex Chord Notation

The `parse_chord_string` tool takes any standard chord name and breaks it down. You get the root, all the intervals, and a clean, normalized name for every single input. This is critical when you're dealing with raw music data from multiple sources. Instead of guessing what a notation means, your agent returns structured JSON that lets you build reliable logic into your own tools.

Map Functional Roles and Voicings

Need to know why a chord appears where it does? The `determine_harmonic_role` tool identifies the functional role of any given chord within a specified key. It tells you if that chord acts as a subdominant, tonic, or dominant. It also handles arrangement using `generate_voicings`. You pass in notes, and this MCP figures out how to arrange them into specific 'closed' or 'open' musical textures for your project.

Generate Chord Inversions

Understanding inversions is half the battle. The `get_chord_inversions` tool calculates every possible permutation of a chord, showing which notes can serve as the bass. It gives you both the full stack and the specific bass note for each version. This means when your agent builds an accompaniment pattern, it doesn't just pick one voicing; it knows all options available to maintain smooth movement.

Setup guide

Set up Chord Constructor MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Chord Constructor MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Chord Constructor MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under chord-constructor-mcp.

json

{
  "mcpServers": {
    "chord-constructor-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Chord Constructor. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Chord Constructor MCP in Claude Desktop

The MCP connects directly via your local or remote endpoint. It processes the chord notation, and your agent reads the structured result—whether it's a functional role or an inversion list—and uses it immediately in the chat output.

It handles complex chord notation strings, identifying root notes, intervals, and structured harmonic roles. The MCP operates entirely on musical theory data, not personal files or messages.

Absolutely. You can chain the MCP with other tools—say, taking a list of chords and having the agent automatically check their functional role against a predefined key structure before sending them out.

Yes. You connect it as a Custom Connector by pasting the public HTTPS URL into your Integrations settings, making the powerful analysis accessible from any browser.

You simply specify the tonal center (the key) in the prompt. The `determine_harmonic_role` tool then anchors all subsequent analyses to that single, established key.

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