THIRI Chord Intelligence API

Your API Keys

Name: THIRI Chord Intelligence MCP Server
Author: Blues Prince Media

Sign in with your developer email to create, rotate, and revoke keys. New keys are shown once, so copy them immediately. Looking for usage and quota? See the usage dashboard. Then go build: try the instruments or browse research reports.

60-second setup: generate your key, run claude mcp add thiri, and call five harmonic tools

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By creating a key you accept the pre-release developer terms

The API, MCP server, and associated services are provided “AS IS” for evaluation, testing, prototyping, and integration. No guarantees on uptime, latency, or availability. You own the apps you build; THIRI owns the engine, endpoints, and brand.
Usage logs (request volumes, latency, error rates) are kept per key, and the request bodies you send are stored to improve the engine's chord vocabulary. Do not send secrets in requests. Your feedback may be used to improve the platform.

Your Get Started Guide

Six pages: how THIRI fits together, setup for Claude Desktop and Claude Code, your first four prompts, how to read the answer like a musician, what to do when something breaks, and the room where builders meet.

Plans

The free key covers 1,000 calls a month. A paid plan raises the limits on every key on your account. Sign in first, then pick your plan.

Theory Pro

10,000 calls a month · 120 a minute · 2 keys

Developer

100,000 calls a month · 300 a minute · 10 keys, plus the Builder skills and calls on Skool

Developer: join the $20/mo Builder tier on Skool, founder rate locked for life until Dec 31, 2026

Join with the email you sign in with here. We raise the keys on that email to the Developer limits by hand.

MCP commercial licence

1,000,000 calls a month · 1,000 a minute · 25 keys

Theory Pro and the licence check out here with the email you sign in with; Developer is the Builder tier on Skool. Cancel any time; the keys drop back to the free limits.

What you'll wire up

One key, dropped into either config below. Nothing to install: @bluesprincemedia/thiri-mcp is fetched by npx on first run.

claude mcp add thiri --env THIRI_API_KEY=sk_live_… -- npx -y @bluesprincemedia/thiri-mcp

{
  "mcpServers": {
    "thiri": {
      "command": "npx",
      "args": [
        "-y",
        "@bluesprincemedia/thiri-mcp"
      ],
      "env": {
        "THIRI_API_KEY": "sk_live_…"
      }
    }
  }
}

Replace sk_live_… with the key you create above. macOS config path: ~/Library/Application Support/Claude/claude_desktop_config.json

Stuck, or scoping something bigger?

20 minutes with the person who built the engine: integration questions, quota, or partnership.

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This is the only time the full key is shown. It can't be retrieved again.

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Quickstart: Add to Claude Code CLI

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Or: claude_desktop_config.json

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Your API Keys

Have an access code?

This account is on the free limits

Plans

What you'll wire up

Stuck, or scoping something bigger?

Copy your key now