XWeaponX7/rundida-mcp

MCP server for **RunDida** — running expertise for AI agents.
Ten tools that let Claude, Cursor or any MCP client **compute paces, heart-rate zones, race predictions and marathon countdowns live**, and **query RunDida's full library**: 99 running calculators, 56 training guides and 300+ marathon events (course, weather and registration data) — in English, Chinese and Japanese. Free, zero-config, no API key.
Quick Start
Claude Desktop
Add to your claude_desktop_config.json:
Claude Code
Cursor / Windsurf
Add to your MCP configuration:
Available Tools
| Tool | Type | Description |
|------|------|-------------|
| list_tools | Data | Browse all 99 running calculators with descriptions |
| get_tool | Data | Get details, FAQs, and sources for a specific tool |
| list_guides | Data | Browse all 46 running guides with descriptions |
| get_guide | Data | Get guide details, FAQs, and related tools |
| list_marathons | Data | List 300+ marathon events with dates and locations |
| get_marathon | Data | Get marathon details including weather and course profile |
| calculate_pace | Compute | Calculate pace, time, or distance (provide any 2 of 3) |
| predict_race | Compute | Predict race times using Riegel formula + VO2max estimation |
| heart_rate_zones | Compute | Calculate 5 HR training zones (Karvonen method) |
| marathon_countdown | Compute | Get countdown to a specific marathon event |
**Data tools** fetch from the RunDida API with 30-minute caching. **Compute tools** run locally with zero latency — no API calls needed.
Example Usage
Ask your AI assistant:
- "What's my marathon pace if I want to finish in 3:30?"
- "Predict my marathon time based on my 10K of 45 minutes"
- "What are my heart rate zones? I'm 32 with a resting HR of 52"
- "How many days until the Tokyo Marathon?"
- "Show me all running calculators related to nutrition"
- "What running guides do you have about marathon training?"
- "Tell me about the couch to 5K guide"
About RunDida
**RunDida** (跑滴答) is a free running tools platform for runners of all levels:
- **90+ Interactive Calculators** — Pace, heart rate zones, VO2max, race prediction, nutrition, gear sizing, weather impact, and more
- **29 Marathon Countdowns** — Live timers with race-day weather forecasts, course profiles, and training tools
- **Free JSON API** — No authentication required, CORS enabled, OpenAPI 3.0 documented
- **Multi-language** — English, Chinese (中文)
- **Embeddable Widgets** — One-line iframe embed for any calculator
All tools are free, no account required. Try them at rundida.com.