TrainingPeaks MCP Server

A Model Context Protocol server for TrainingPeaks with an analytics focus — enabling real-time querying of training data, performance trends, CTL/ATL/TSB analysis, and training load optimization through Claude Desktop.

# Install and run — no cloning needed
uvx tp-mcp-server

Features

14 tools organized across 5 categories:

Key feature: CTL/ATL/TSB are computed from TSS using standard exponential weighted moving averages (42-day/7-day time constants), since the TP API doesn't return these values directly.

Quick Start (recommended)

The fastest way to get running — no cloning or venv needed.

1. Install uv (if you don't have it)

uv is a fast Python package manager built by Astral (the company behind Ruff). It includes uvx, a tool that can download and run Python packages in isolated environments — no manual setup needed. It's open-source, widely adopted in the Python community, and used by projects like FastAPI, Pydantic, and many MCP servers.

curl -LsSf https://astral.sh/uv/install.sh | sh

2. Get your TrainingPeaks auth cookie

1. Open your browser and go to trainingpeaks.com and log in
2. Open Developer Tools (Cmd+Option+I on Mac, F12 on Windows/Linux)
3. Click the Application tab (Chrome/Edge) or Storage tab (Firefox)
4. In the left sidebar, expand Cookies and click on https://www.trainingpeaks.com
5. Find the cookie named Production_tpAuth
6. Double-click its Value column and copy the entire string

3. Add to Claude Desktop

Open your Claude Desktop config file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

Note: If this file doesn't exist yet (first time configuring an MCP server), create it yourself. On macOS, the Claude folder inside Application Support should already exist if you've opened Claude Desktop at least once — you just need to create the claude_desktop_config.json file inside it.

First, find the full path to uvx:

which uvx

This will output something like /Users/yourname/.local/bin/uvx.

Then add this to your config (replace the command path and your_cookie_value):

{
  "mcpServers": {
    "trainingpeaks": {
      "command": "/Users/yourname/.local/bin/uvx",
      "args": ["tp-mcp-server"],
      "env": {
        "TP_AUTH_COOKIE": "your_cookie_value"
      }
    }
  }
}

Important: You must use the full absolute path to uvx (not just "uvx"). Claude Desktop has a limited PATH and won't find it otherwise.

4. Restart Claude Desktop

Fully quit and reopen Claude Desktop. You should see "trainingpeaks" listed as a connected MCP server (look for the hammer icon).

That's it — no cloning, no virtual environments. uvx automatically downloads and runs the package from PyPI.

Alternative: Install from source

If you want to modify the code or contribute:

Prerequisites

• Python 3.12+
• uv (recommended) or pip

Steps

git clone https://github.com/banananovej-chuan/tp-mcp-server.git
cd tp-mcp-server
uv venv --python 3.12
uv pip install .

Get your cookie (see step 2 above), then configure the environment:

cp .env.example .env
# Edit .env and paste your cookie value

For Claude Desktop, use the absolute path to the venv Python:

{
  "mcpServers": {
    "trainingpeaks": {
      "command": "/absolute/path/to/tp-mcp-server/.venv/bin/python",
      "args": ["-m", "tp_mcp_server"],
      "env": {
        "TP_AUTH_COOKIE": "your_cookie_value"
      }
    }
  }
}

Important: The command path must be an absolute path. On macOS/Linux it starts with /, on Windows use the full path like C:\\Users\\yourname\\tp-mcp-server\\.venv\\Scripts\\python.exe. Do not use ~ or relative paths.

Example Queries

Once connected in Claude Desktop, try:

• "What's my current fitness level?"
• "Show my planned workouts for the next 2 weeks"
• "Show my training load trend for the last 3 months"
• "Analyze my last bike workout"
• "What are my power PRs?"
• "How is my training zone distribution this month?"
• "Compare my bike performance over the last 90 days"

Refreshing Your Auth Cookie

The TrainingPeaks auth cookie expires periodically (typically every few days to weeks). When it expires:

1. You'll see authentication errors in Claude Desktop
2. Re-extract the cookie from your browser (repeat Step 2 from Quick Start)
3. Update the TP_AUTH_COOKIE value in your Claude Desktop config (and .env file if using source install)
4. Restart Claude Desktop

Architecture

src/tp_mcp_server/
├── server.py              # FastMCP entry point
├── mcp_instance.py        # Shared MCP instance
├── config.py              # Environment config
├── api/
│   ├── client.py          # Async httpx client, token management
│   └── endpoints.py       # API URL constants
├── auth/
│   ├── storage.py         # Cookie storage (env/keyring)
│   └── browser.py         # Browser cookie extraction
├── tools/
│   ├── auth.py            # Auth status/refresh
│   ├── profile.py         # Athlete profile
│   ├── workouts.py        # Workout list/detail
│   ├── fitness.py         # CTL/ATL/TSB data
│   ├── peaks.py           # Personal records
│   └── analytics.py       # Derived analytics
├── models/
│   ├── workout.py         # Workout models
│   ├── fitness.py         # Fitness models + CTL computation
│   ├── peaks.py           # PR models
│   └── profile.py         # Profile model
└── utils/
    ├── dates.py            # Date helpers
    └── formatting.py       # Output formatting

Known Limitations

• Internal API: TrainingPeaks has no public API. This uses the same internal API as the web app, which could change without notice.
• Cookie auth: Requires periodic browser re-login to refresh the cookie.
• Sport-level PRs: The /personalrecord/v2/athletes/{id}/{sport} endpoint returns 500. PRs are aggregated from individual workouts instead.
• CTL/ATL/TSB: The API returns "NaN" for these values. They are computed locally from TSS data.
• Rate limiting: Requests are throttled to 150ms apart to avoid hitting TP rate limits.