com.dfetcher/vitamin-d · v1.0.0 · location-and-travel
D Fetcher is healthy: it completed an MCP handshake in 1363 ms and exposes 3 tools.
Vitamin D synthesis calculator: sun position, UV, IU/min, time to dose, sunburn risk, daily window.
Endpoint: https://dfetcher.com/mcp (streamable-http)
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| Users (last 30 days) | 0 |
| Handshake | Healthy |
| Auth needed | None |
| Tool count | 3 |
| Latency | 1363 ms |
| Last checked (UTC) | 2026-10-14T19:00:32.551Z |
| Checked (UTC) | Status | Latency | Error |
|---|---|---|---|
| 2026-10-14T19:00:32.551Z | Healthy | 1363 |
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- |
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. |
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. |