D Fetcher
Vitamin D synthesis calculator: sun position, UV, IU/min, time to dose, sunburn risk, daily window.
| Endpoint | https://dfetcher.com/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.0 |
| Now | 3 tools · grade A (100) · pin ts_a8d0671d83647d303f56869612c6c53e · protocol 2025-06-18 |
| First / last listed | 2026-10-24 21:25 UTC / 2026-10-24 21:25 UTC |
| Grade over time | 2026-10-24: A (100), 3 tools |
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Tools: calculate geocode describe_skin_types
calculate | Calculate 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-sky fallback. params: lat*, lon*, skin, area, scalp, age, target, date, day, year |
geocode | Turn 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. params: query* |
describe_skin_types | Returns 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. params: none |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.