io.github.cyanheads/nws-weather-mcp-server
nws-weather-mcp-server
Get US weather forecasts, active alerts, and current observations.
alive probed 2026-10-05 · HTTP 200
9tools
4.9ktokens in Claude Opus 5.5
5.0ktokens in Claude Code
2.4 %of a 200k context window
2.8ko200k_base estimate
271 msto initialize
71 msto list tools
- Endpoint
- https://nws.caseyjhand.com/mcp (streamable-http)
- Host
- nws.caseyjhand.com
- Protocol
- 2025-11-25
- Reports itself as
- nws-weather-mcp-server 0.10.0
- Capabilities
- logging, prompts, resources, tools
- Instructions
- 798 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/cyanheads/nws-weather-mcp-server
- Registry
- active, updated 2026-09-30 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| nws_search_alerts | 787 | 28 % |
| nws_get_observation_history | 444 | 16 % |
| nws_get_office_discussion | 334 | 12 % |
| nws_get_zone_forecast | 310 | 11 % |
| nws_get_forecast | 262 | 9 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-05 14:39 | alive | 271 ms | 9 | 4.9k | 2.8k |
| 2026-10-05 00:33 | alive | 147 ms | 9 | 2.8k | |
| 2026-10-04 10:04 | alive | 289 ms | 9 | 2.8k | |
| 2026-10-04 07:57 | alive | 360 ms | 9 | 2.8k | |
| 2026-10-03 20:37 | alive | 798 ms | 9 | 2.8k | |
| 2026-10-03 17:53 | alive | 396 ms | 9 | 2.8k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.cyanheads/nws-weather-mcp-server)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.