Deterministic music theory for agents: analyze, voice, reharmonize, conduct β computed, not guessed
registry version 0.5.2
npm
npx -y @bluesprincemedia/thiri-mcpnpm
npx -y @bluesprincemedia/thiri-mcp@0.5.2Streamable HTTP
https://mcp.thiri.ai/mcp
Pick your client β the config below is generated for this server (both local and hosted-endpoint forms). Copy respects the βPin versionβ switch above.
claude_desktop_config.json
{
"mcpServers": {
"chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp"
],
"env": {
"THIRI_API_KEY": "<YOUR_THIRI_API_KEY>"
}
}
}
}{
"mcpServers": {
"chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp@0.5.2"
],
"env": {
"THIRI_API_KEY": "<YOUR_THIRI_API_KEY>"
}
}
}
}Remote (hosted) endpoint
https://mcp.thiri.ai/mcp
Claude Desktop: Settings β Connectors β Add custom connector, paste this URL.
Format verified against the official Claude Desktop docs β.
terminal
claude mcp add --env THIRI_API_KEY=<YOUR_THIRI_API_KEY> chord-intelligence -- npx -y @bluesprincemedia/thiri-mcp
claude mcp add --env THIRI_API_KEY=<YOUR_THIRI_API_KEY> chord-intelligence -- npx -y @bluesprincemedia/thiri-mcp@0.5.2
terminal
claude mcp add --transport http chord-intelligence https://mcp.thiri.ai/mcp
Format verified against the official Claude Code docs β.
.cursor/mcp.json
{
"mcpServers": {
"chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp"
],
"env": {
"THIRI_API_KEY": "<YOUR_THIRI_API_KEY>"
}
}
}
}{
"mcpServers": {
"chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp@0.5.2"
],
"env": {
"THIRI_API_KEY": "<YOUR_THIRI_API_KEY>"
}
}
}
}.cursor/mcp.json (hosted endpoint)
{
"mcpServers": {
"chord-intelligence": {
"url": "https://mcp.thiri.ai/mcp"
}
}
}Format verified against the official Cursor docs β.
.vscode/mcp.json
{
"servers": {
"chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp"
],
"env": {
"THIRI_API_KEY": "<YOUR_THIRI_API_KEY>"
}
}
}
}{
"servers": {
"chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp@0.5.2"
],
"env": {
"THIRI_API_KEY": "<YOUR_THIRI_API_KEY>"
}
}
}
}.vscode/mcp.json (hosted endpoint)
{
"servers": {
"chord-intelligence": {
"type": "http",
"url": "https://mcp.thiri.ai/mcp"
}
}
}Format verified against the official VS Code docs β.
mcp_config.json
{
"mcpServers": {
"chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp"
],
"env": {
"THIRI_API_KEY": "<YOUR_THIRI_API_KEY>"
}
}
}
}{
"mcpServers": {
"chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp@0.5.2"
],
"env": {
"THIRI_API_KEY": "<YOUR_THIRI_API_KEY>"
}
}
}
}mcp_config.json (hosted endpoint)
{
"mcpServers": {
"chord-intelligence": {
"serverUrl": "https://mcp.thiri.ai/mcp"
}
}
}Format verified against the official Windsurf docs β.
Defined in the server's official registry manifest. Required secrets are shown as <YOUR_β¦> placeholders in the configs above.
THIRI_API_KEY required secret β THIRI API key (sk_live_β¦) β free at build.thiri.ai/developersβ 11 stars Β· ζθΏζ΄ζ°δΊ 23 倩ε
π· THIRI Chord Intelligence β MCP Server Give your AI real music theory. THIRI is the deterministic music theory MCP server + API for AI builders β it lets Claude, Cursor, or any MCP agent analyze chords, run roman numeral analysis, generate voicings, and reharmonize progressions with answers that aβ¦
Summary from the project README β github.com/BluesPrince/thiri-mcp
Distributed as npm, Streamable HTTP, listed under AI Agents. Review our MCP security guide before granting access to real data.
π· THIRI Chord Intelligence β MCP Server Give your AI real music theory. THIRI is the deterministic music theory MCP server + API for AI builders β it lets Claude, Cursor, or any MCP agent analyze chords, run roman numeral analysis, generate voicings, and reharmonize progressions with answers that a
Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.
The MCP server itself is free to install. The source is public on https://github.com/BluesPrince/thiri-mcp. Any third-party service it calls may require its own API key and account.
Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.
Publish this server? Link back with a badge on your README or site β copy either snippet.
Markdown
[](https://mcpnav.net/server/chord-intelligence/)
HTML
<a href="https://mcpnav.net/server/chord-intelligence/"><img src="https://mcpnav.net/badge/chord-intelligence.svg" alt="Listed on MCPNav" height="20"></a>