com.dfetcher/vitamin-d
D Fetcher
com.dfetcher/vitamin-d costs 604 tokens of context per session. It has 3 tool definitions. That is 0.3 % of a 200k window. Measured 2026-10-03.
Vitamin D synthesis calculator: sun position, UV, IU/min, time to dose, sunburn risk, daily window.
alive probed 2026-10-03 · HTTP 200
3tools
604tokens for the tool definitions
0.3 %of a 200k context window
451 msto initialize
338 msto list tools
- Endpoint
- https://dfetcher.com/mcp (streamable-http)
- Host
- dfetcher.com
- Protocol
- 2025-06-18
- Reports itself as
- dfetcher 1.0.0
- Capabilities
- tools
- Instructions
- 289 characters
- Repository
- https://github.com/rgrieselhuber/dfetcher
- Website
- https://dfetcher.com
- Registry
- active, updated 2026-05-29 · registry entry
- Reachable
- 2 of the last 2 probes
Most expensive tools
| Tool | Tokens | Share of this server |
|---|---|---|
| calculate | 405 | 67 % |
| geocode | 141 | 23 % |
| describe_skin_types | 58 | 10 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Tokens |
|---|---|---|---|---|
| 2026-10-03 20:29 | alive | 451 ms | 3 | 604 |
| 2026-10-03 17:47 | alive | 380 ms | 3 | 604 |
Badge
[](https://mcp-pulse.ulehla.dev/s/com.dfetcher/vitamin-d)