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100
MCP live MCP 2025-06-18 streamable-http

D Fetcher

com.dfetcher/vitamin-d

Vitamin D synthesis calculator: sun position, UV, IU/min, time to dose, sunburn risk, daily window.

Uptime
100.0%
2 direct probes · 30d
Response
185ms
last probe
Tools
3
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://dfetcher.com/mcp

Tools · 3

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 …

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 coun…

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 calc…

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "d_fetcher": {
      "url": "https://dfetcher.com/mcp",
      "transport": "streamable-http"
    }
  }
}