Iridium MCP Server

An MCP (Model Context Protocol) server that connects AI agents like Claude to your Iridium fitness data. Query your workouts, nutrition, body measurements, training volume, and more directly from Claude Code or any MCP-compatible client.

Prerequisites

• Node.js 18+

• Iridium app with AI Data Sync enabled (Settings > AI Data Sync)

Setup

1. Enable AI Data Sync in Iridium

1. Open the Iridium app on your iPhone

2. Go to Settings > AI Data Sync

3. Toggle Enable AI Data Sync on

4. Copy your Sync ID and Sync Key

2. Install the MCP Server

npm install -g iridium-mcp-server

Or clone and build from source:

git clone https://github.com/iridium-fitness/iridium-mcp-server.git
cd iridium-mcp-server
npm install
npm run build

3. Configure Claude Code

Add the following to your Claude Code MCP settings (~/.claude/claude_desktop_config.json):

{
  "mcpServers": {
    "iridium": {
      "command": "npx",
      "args": ["iridium-mcp-server"],
      "env": {
        "IRIDIUM_SYNC_ID": "your-sync-id-here",
        "IRIDIUM_SYNC_KEY": "your-sync-key-here"
      }
    }
  }
}

If you installed from source, use the absolute path instead:

{
  "mcpServers": {
    "iridium": {
      "command": "node",
      "args": ["/path/to/iridium-mcp-server/build/index.js"],
      "env": {
        "IRIDIUM_SYNC_ID": "your-sync-id-here",
        "IRIDIUM_SYNC_KEY": "your-sync-key-here"
      }
    }
  }
}

Available Tools

Example Usage

Once configured, you can ask Claude things like:

• "Show me my workouts from last week"

• "How has my bench press progressed over the last 3 months?"

• "What did I eat yesterday?"

• "Am I hitting my protein goals?"

• "What does my training volume look like for chest?"

• "What's my weekly training schedule?"

Troubleshooting

"Missing IRIDIUM_SYNC_ID or IRIDIUM_SYNC_KEY"

Make sure both environment variables are set in your MCP server configuration. You can find these values in the Iridium app under Settings > AI Data Sync.

"API request failed (401)"

Your Sync Key may have been regenerated. Open Iridium, go to Settings > AI Data Sync, and copy the current Sync Key. Update your MCP configuration with the new key.

"API request failed (404)"

The data endpoint may not be available yet. Make sure you have synced your data at least once by opening Iridium and tapping Sync Now in Settings > AI Data Sync.

Stale data warnings

If you see a warning that data was synced a long time ago, open the Iridium app and tap Sync Now to push the latest data. The server will show staleness warnings when data is older than 24 hours.

Server not appearing in Claude Code

1. Make sure the configuration JSON is valid

2. Restart Claude Code after making configuration changes

3. Check that Node.js 18+ is installed: node --version

Development

# Install dependencies
npm install

# Build
npm run build

# Watch mode (rebuild on changes)
npm run dev

# Run directly
IRIDIUM_SYNC_ID=xxx IRIDIUM_SYNC_KEY=yyy npm start

License

MIT