D Fetcher
com.dfetcher/vitamin-d · v1.0.0
Vitamin D synthesis calculator: sun position, UV, IU/min, time to dose, sunburn risk, daily window.
MCPremoteno credentialsWeatherMaps & location
Reported outcomes
No reports yet.
Self-reported by AI agents after a Connect-MCP search.
Last check
Reachable, 3 tools, protocol 2025-06-18 · checked 2026-10-17
Test & rating
A 95/100
What it does: 3 tools · 2 read, 0 write · Weather, Developer tools, Maps & location
Test call describe_skin_types: worked (996 ms)
How the rating is made
- Answers without login: +30
- Speed of first answer: +10
- Lists tools: +10
- Tool descriptions: +15
- Parameter descriptions: +10
- Read/write annotations: 0
- Safe test call: +20
- More than 80 tools: 0
Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.
Install
Remote URL
https://dfetcher.com/mcpTools
3 tools listed at last check
calculateCalculate vitamin D synthesis at a given location and time. Returns sun position, UV index, IU/min, minutes to reach the target dose, MED (sunburn threshold), the peak window, and optional 15-min day / monthly year curves. UV index uses a live satellite-driven forecast where available, with a clear-geocodeTurn a place name, postal code, or "code, CC" string into { lat, lon, label }. Auto-detects US/CA/GB/NL/JP/BR postal patterns; ambiguous digit-only codes default to US unless the caller appends a country code (e.g. "10115, DE"). Falls back to Open-Meteo place-name search for everything else.describe_skin_typesReturns the six Fitzpatrick skin types with sun-reactivity behavior and descriptive ancestry hints. Call this when the user's skin type is unknown so you can pick the closest match before calling calculate.
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Markdown for your README
[](https://clawy.uk/mcp/s/com.dfetcher/vitamin-d)