D Fetcher
mcp remote · streamable-http · v1.0.0 · source: crawl
https://dfetcher.com/mcp
https://github.com/rgrieselhuber/dfetcher
Vitamin D synthesis calculator: sun position, UV, IU/min, time to dose, sunburn risk, daily window.
Works
100
Verified Oct 31, 2026 · p50 494 ms · p95 540 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'dfetcher' |
| tools_listed | 15 | pass | 3 tools |
| schema_complete | 15 | pass | 3 of 3 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 494 ms |
| latency_p95 | 5 | pass | p95 540 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (3)
| Name | Description | Schema |
|---|---|---|
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 | typed |
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 | typed |
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 | typed |
Badge
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[](https://app.agent-xm.com/a/com-dfetcher-vitamin-d)
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