{
  "protocolVersion": "2025-03-26",
  "serverInfo": {
    "name": "arenacalc-pace-lab",
    "version": "1.0.0",
    "websiteUrl": "https://arenacalc.com"
  },
  "endpoint": "https://arenacalc.com/mcp",
  "transport": "streamable-http",
  "tools": [
    {
      "name": "calculate_race_pace_splits",
      "description": "Calculate exact min/km pace, min/mile pace, speed (km/h), and 400m track lap time for 5K, 10K, Half Marathon, Marathon, or custom distance.",
      "inputSchema": {
        "type": "object",
        "properties": {
          "distance_km": {
            "type": "number",
            "description": "Race distance in kilometers (e.g. 5, 10, 21.0975, 42.195)"
          },
          "target_minutes": {
            "type": "number",
            "description": "Target finish time in total minutes (e.g. 20 for a 20-minute 5K)"
          }
        },
        "required": [
          "distance_km",
          "target_minutes"
        ]
      }
    }
  ]
}