Use Equal Temperament Calculator with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Calculate MIDI frequencies, interval deviations, and tuning system comparisons.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
Waiting for input…
Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Complete set · 3 capabilities
The complete Equal Temperament Calculator capability set.
These are the exact actions your AI can choose when you ask it to work with Equal Temperament Calculator.
01-03
3 capabilities in this set.
Part of 3 available through Equal Temperament Calculator.
- 01
Calculate interval deviations
Calculates deviations from Just Intonation
- 02
Compare tuning systems
Compares different tuning systems
- 03
Generate midi frequency log
Generates a MIDI frequency log
Observed, not estimated
614ms average. Fast in production.
Equal Temperament Calculator is checked daily against the live service.
- Fastest day
- 511ms
- Slowest day
- 764ms
- 14-day trend
- Stable-3%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Equal Temperament Calculator, so you can see the experience inside your AI.
It does not authenticate your account with Equal Temperament Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Equal Temperament Calculator Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_rPqBeH9fPtGXgG1TBo8yb5w1t30YyPDJmYmqluU8/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Equal Temperament Calculator capabilities are ready to use.
{
"mcpServers": {
"equal-temperament-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_rPqBeH9fPtGXgG1TBo8yb5w1t30YyPDJmYmqluU8/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
FAQ
Questions Equal Temperament Calculator owners ask.
- 01
What is the range of MIDI notes covered?
The engine covers all 128 MIDI notes, from C-1 to G9.
- 02
Can I use a custom reference pitch?
Yes, you can provide any positive frequency in Hz as the referencePitch for all capabilities.
- 03
How are deviations calculated?
The calculate_interval_deviations capability compares the selected tuning system against pure Just Intonation ratios and returns the result in cents.
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