Use Synth FM Engine with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. A deterministic FM synthesis engine for calculating harmonic ratios and sideband spectra.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Complete set · 3 capabilities
The complete Synth FM Engine capability set.
These are the exact actions your AI can choose when you ask it to work with Synth FM Engine.
01-03
3 capabilities in this set.
Part of 3 available through Synth FM Engine.
- 01
Analyze fm ratio
Determines the mathematical relationship between the carrier and modulator to classify the resulting sound type
- 02
Calculate sideband spectrum
Generates a detailed list of the frequencies and relative amplitudes of the sidebands produced by the modulation
- 03
Identify audible frequencies
Filters a spectrum to identify only those sidebands that possess sufficient amplitude to be perceived
Observed, not estimated
737ms average. Fast in production.
Synth FM Engine is checked daily against the live service.
- Fastest day
- 649ms
- Slowest day
- 926ms
- 14-day trend
- Slowing+8%
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 Synth FM Engine, so you can see the experience inside your AI.
It does not authenticate your account with Synth FM Engine. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Synth FM Engine Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_3lT9doQZYsHYQNnPPw2yzyA6nsyEDhKIlA8ORgqw/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 — Synth FM Engine capabilities are ready to use.
{
"mcpServers": {
"synth-fm-ratio-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_3lT9doQZYsHYQNnPPw2yzyA6nsyEDhKIlA8ORgqw/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 Synth FM Engine owners ask.
- 01
What is the difference between harmonic and inharmonic spectra?
Harmonic spectra occur when the C:M ratio consists of simple integer relationships, resulting in musical tones. Inharmonic spectra occur when the ratio is complex or irrational, creating bell-like or metallic sounds.
- 02
How are sideband amplitudes calculated?
Sideband amplitudes are determined by approximating Bessel functions of the first kind based on the provided modulation index.
- 03
Can I filter out quiet sidebands?
Yes, you can use the identify_audible_frequencies capability to filter the spectrum for sidebands that exceed a specific amplitude threshold.
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