MyFitnessPal MCP Server

Instructions

Implementation Reference

• server.py:195-255 (handler)

  The handler function decorated with @mcp.tool that implements the get_daily_exercise tool. It retrieves exercise data for a specified date from MyFitnessPal, processes cardio and strength activities to extract durations and calories burned, formats a markdown summary of individual exercises and totals, and returns it via text_response.

  def get_daily_exercise(date: Optional[str] = None):
      """
      Get exercise activities: cardio (duration, calories) and strength (sets, reps, weight).
      
      Args:
          date: Date in YYYY-MM-DD format (defaults to today)
      """
      try:
          target_date = parse_date(date)
          client = get_client()
          
          # Fetch day data
          day = client.get_day(target_date)
          exercises = day.exercises
          
          output = f"# Exercise for {target_date.strftime('%B %d, %Y')}\n\n"
          
          if not exercises:
              output += "No exercise logged for this day.\n"
          else:
              # Collect all exercise entries from all exercise categories
              all_entries = []
              for exercise in exercises:
                  all_entries.extend(exercise.entries)
              
              if not all_entries:
                  output += "No exercise logged for this day.\n"
              else:
                  total_calories = 0
                  total_minutes = 0
                  
                  for entry in all_entries:
                      nutrition = entry.nutrition_information
                      
                      output += f"- **{entry.name}**\n"
                      
                      # Duration
                      minutes = nutrition.get('minutes')
                      if minutes:
                          output += f"  - Duration: {minutes:.0f} minutes\n"
                          total_minutes += minutes
                      
                      # Calories burned
                      calories = nutrition.get('calories burned', 0)
                      if calories:
                          output += f"  - Calories Burned: {calories:.0f} kcal\n"
                          total_calories += calories
                      
                      output += "\n"
                  
                  # Summary
                  output += "## Summary\n"
                  if total_minutes > 0:
                      output += f"- **Total Duration**: {total_minutes:.0f} minutes\n"
                  if total_calories > 0:
                      output += f"- **Total Calories Burned**: {total_calories:.0f} kcal\n"
          
          return text_response(output)
          
      except Exception as e:
          return text_response(f"Error retrieving exercise: {str(e)}")