Intervals.icu MCP Server

This is a Model Context Protocol (MCP) server for Intervals.icu. It allows you to interact with your Intervals.icu data, including activities, wellness data, and calendar events.

Configuration

You need an API Key and your Athlete ID from Intervals.icu.

Environment Variables

Variable	Description
INTERVALS_ATHLETE_ID	Your Intervals.icu Athlete ID (e.g., i12345)
INTERVALS_API_KEY	Your Intervals.icu API Key

Setting Environment Variables

macOS / Linux

You can set environment variables in your terminal session or add them to your shell configuration file (e.g., .bashrc, .zshrc).

export INTERVALS_ATHLETE_ID="your_athlete_id"
export INTERVALS_API_KEY="your_api_key"

To make them permanent, add the lines above to your ~/.zshrc or ~/.bashrc file and run source ~/.zshrc (or source ~/.bashrc).

Windows (Command Prompt)

set INTERVALS_ATHLETE_ID=your_athlete_id
set INTERVALS_API_KEY=your_api_key

Note: This sets the variables for the current session only. To set them permanently, use the System Properties dialog or setx.

Windows (PowerShell)

$env:INTERVALS_ATHLETE_ID="your_athlete_id"
$env:INTERVALS_API_KEY="your_api_key"

To set them permanently:

[System.Environment]::SetEnvironmentVariable('INTERVALS_ATHLETE_ID', 'your_athlete_id', [System.EnvironmentVariableTarget]::User)
[System.Environment]::SetEnvironmentVariable('INTERVALS_API_KEY', 'your_api_key', [System.EnvironmentVariableTarget]::User)

Usage

Run the server using the package:

npx @moxus/intervals-mcp

Or if running from source:

node dist/index.js

Verify Command

You can verify your configuration and connection to Intervals.icu using the verify command. This will attempt to fetch your athlete profile.

npx @moxus/intervals-mcp verify

If successful, you will see your athlete details. If it fails, check your API key and Athlete ID.

Gemini Installation

The simplest way to install this MCP server for Gemini is using the extension:

gemini extension install https://github.com/moxus/intervals-icu-gemini

For more details, refer to the Intervals.icu Gemini Extension repository.

Manual Configuration (Alternative)

To add this MCP server to a CLI agent like gemini-cli (or similar agents that support MCP) manually, you typically need to configure the agent to spawn this server process.

Assuming gemini-cli supports an MCP configuration file (like mcp_config.json or command line arguments), you would add an entry for @moxus/intervals-mcp.

Example configuration (conceptual):

{
  "mcpServers": {
    "intervals": {
      "command": "npx",
      "args": ["-y", "@moxus/intervals-mcp"],
      "env": {
        "INTERVALS_ATHLETE_ID": "your_athlete_id",
        "INTERVALS_API_KEY": "your_api_key"
      }
    }
  }
}

Or if you are running it locally from source:

{
  "mcpServers": {
    "intervals": {
      "command": "node",
      "args": ["/path/to/intervals-icu-mcp-ts/dist/index.js"],
      "env": {
        "INTERVALS_ATHLETE_ID": "your_athlete_id",
        "INTERVALS_API_KEY": "your_api_key"
      }
    }
  }
}

Consult the documentation of the specific agent you are using for the exact configuration format.

Tools

• get_athlete_profile: Get athlete details.
• list_activities: Get activities within a date range.
• get_activity: Get full details of an activity.
• list_wellness: Get wellness logs.
• list_workouts: Get workouts from the library.
• create_workout: Create a workout in the library.
• list_events: Get calendar events.
• create_event: Create an event (workout, note, etc.) on the calendar.
• update_event: Update an existing event.
• delete_future_event: Delete an event.