Vinkius
Chord Constructor

Chord Constructor MCP for AI. Automate deep musical theory analysis.

Claude Claude
ChatGPT ChatGPT
Cursor Cursor
Gemini Gemini
Windsurf Windsurf
VS Code VS Code
JetBrains JetBrains
Vercel Vercel
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Works with every AI agent you already use

…and any MCP-compatible client

Chord Constructor MCP on Cursor AI Code EditorChord Constructor MCP on Claude Desktop AppChord Constructor MCP on OpenAI Agents SDKChord Constructor MCP on Visual Studio CodeChord Constructor MCP on GitHub Copilot AI AgentChord Constructor MCP on Google Gemini AIChord Constructor MCP on Lovable AI DevelopmentChord Constructor MCP on Mistral AI AgentsChord Constructor MCP on Amazon AWS Bedrock

How this MCP server connects to your AI agent

Chord Constructor analyzes complex music theory by breaking down chord notation into notes, intervals, and harmonic roles. This MCP lets your agent understand the underlying structure of any chord you feed it, calculating every possible inversion or determining its function within a given key.

It's essential for composers needing automated analysis or students studying advanced harmony.

What AI agents can do with Chord Constructor Automation

Determine harmonic role

Identifies the functional role of a chord within a specific musical key, telling you its theoretical job in the piece.

Generate voicings

Arranges a set of notes into structured 'closed' or 'open' textures for composition.

Get chord inversions

Calculates all possible ways to stack the same chord, determining which note acts as the bass point.

+ 1 more capabilities included
Analyze Chord Structure

Converts a standard chord name (like Cmaj7) into its core notes and intervals.

Determine Harmonic Function

Identifies the specific theoretical role of a chord within a given musical key.

Calculate Note Permutations

Generates every possible way to arrange a set of notes, allowing you to change which note acts as the bass.

Arrange Musical Textures

Builds specific sounding arrangements of notes, choosing between open or closed voicing styles.

Included with Plan

Waiting for input…

AI Agent

What AI agents can do with Chord Constructor: 4 Tools

These tools allow you to break down chord names into intervals, find every possible inversion, or determine a chord's specific role within a musical key.

Make your AI actually useful.

Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.

Start using Chord Constructor on Vinkius

Determine Harmonic Role

Identifies the functional role of a chord within a specific musical key, telling you its theoretical job in the piece.

Generate Voicings

Arranges a set of notes into structured 'closed' or 'open' textures for composition.

Get Chord Inversions

Calculates all possible ways to stack the same chord, determining which note acts as...

Parse Chord String

Breaks down any standard chord name into its constituent root notes and intervals...

Security and governance baked right in.

Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.

Claude AI

Claude AI

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 integration is available immediately — no restart needed.

Choose How to Get Started

Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.

Build Your Own

Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.

  • Import from OpenAPI, Swagger, or YAML specs
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  • Publish to catalog or keep private
Start building

Make Your AI Do More

Start with Chord Constructor, then connect any of our 5,100+ other servers whenever your AI needs more. One click, no limits.

  • Use this MCP plus 5,100+ others, all in one place
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  • Every connection is secured and compliant automatically
  • Track usage and costs across all your servers
  • Works with Claude, ChatGPT, Cursor, and more
  • New servers added to the catalog every week
Chord Constructor MCP server cover

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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Built on the Model Context Protocol (MCP) for Claude, ChatGPT, Cursor, and more

The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.

This connection provides 4 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.

The Confusion of Manual Chord Analysis, Solved with Vinkius AI Gateway

Right now, figuring out a chord's true place in the song means opening multiple theory books, cross-referencing key signatures, and manually calculating every possible inversion just to prove a point. You spend hours copy-pasting notes into spreadsheets, then spending more time trying to figure out which arrangement sounds best—all while worrying if you missed one functional role.

With this MCP, your agent handles the heavy lifting. Give it a chord name, and in seconds, you get structured data that tells you its function (determine_harmonic_role) and all possible permutations (get_chord_inversions). You just focus on writing the music; we handle the theory.

Structure Your Composition with Chord Constructor

You no longer have to guess at note spacing or harmonic roles. The system automatically runs analysis tools like parse_chord_string, which gives you clean root and interval data, eliminating the ambiguity of written notation.

What's different now is that your composition moves from being an intuitive feeling into a verifiable, structured piece of data. You get mathematically accurate arrangements using generate_voicings that elevate your work immediately.

What your AI can actually do with this

Writing music theory often involves juggling complex rules: figuring out if a chord is acting as a dominant seventh, listing all possible inversions, or deciding how to spread the notes across different voices. This MCP handles all that heavy lifting. You can feed it any standard chord notation, and your agent immediately breaks down its root intervals and component parts.

Need to know how those three notes sound when they're played from a different bass point? It calculates every possible permutation for you. If you’re stuck on arrangement, the tool generates specific note groupings, supporting both open and closed textures. Plus, it tells you the functional role of that chord in the key—is it setting up movement or resolving tension? Because Vinkius hosts this MCP, your agent can access these deep music theory tools alongside everything else in their catalog, letting you focus purely on composition.

Built · Hosted · Managed by Vinkius Chord Constructor MCP - Analyze Music Theory
Server ID 019ecb72-6573-7394-9876-051f79085703
Vinkius Inspector
Compliance Grade A+
Score 100/100
Vinkius Inspector Badge — Score 100/100

Questions you might have

How does the Chord Constructor MCP handle complex chords? +

The system uses parse_chord_string to break down any notation, no matter how complex. It isolates the root and all constituent intervals so you can analyze them piece by piece.

Can I use get_chord_inversions for non-triad chords? +

Yes, it calculates inversions based on a provided set of notes. You feed it the full chord data (not just three notes), and it finds all valid permutations.

What is the difference between open and closed voicing using generate_voicings? +

Open voicing spreads the notes out widely, giving a spacious sound. Closed voicing keeps the notes closer together, creating a denser texture, allowing you to choose the right sonic impact.

Does determine_harmonic_role only work on major keys? +

No, it identifies the functional role of a chord within any specified musical key. It handles minor and modal analysis equally well.

Built & Managed by Vinkius 30s setup 4 tools

We've already built the connector for Chord Constructor. Just plug in your AI agents and start using Vinkius.

No hosting. No infrastructure. No complex setup.
All 4 tools are live and waiting. You're up and running in seconds.

Vinkius runs on Claude Claude
Vinkius runs on ChatGPT ChatGPT
Vinkius runs on Cursor Cursor
Vinkius runs on Gemini Gemini
Vinkius runs on Windsurf Windsurf
Vinkius runs on VS Code VS Code
Vinkius runs on JetBrains JetBrains
Vinkius runs on Vercel Vercel
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