com.southlondonscientific/hermes
Hermes — Air Quality Intelligence
UK air quality MCP: live readings, historical trends, LAQM stats, WHO checks, knowledge base.
alive probed 2026-10-05 · HTTP 200
15tools
5.6ktokens in Claude Opus 5.5
5.8ktokens in Claude Code
2.8 %of a 200k context window
3.3ko200k_base estimate
1.4 sto initialize
267 msto list tools
- Endpoint
- https://hermes.southlondonscientific.com/mcp (streamable-http)
- Host
- hermes.southlondonscientific.com
- Protocol
- 2025-11-25
- Reports itself as
- hermes 1.30.0
- Capabilities
- experimental, prompts, resources, tools
- Instructions
- 3 642 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://www.southlondonscientific.com
- Registry
- active, updated 2026-05-05 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| chart_aq_trend | 433 | 13 % |
| get_historical_aq | 350 | 11 % |
| get_current_aq | 283 | 9 % |
| trend_analysis | 267 | 8 % |
| kb_get_practical_advice | 224 | 7 % |
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 13:42 | alive | 1.4 s | 15 | 5.6k | 3.3k |
| 2026-10-05 00:21 | alive | 946 ms | 15 | 3.3k | |
| 2026-10-04 09:58 | alive | 2.1 s | 15 | 3.3k | |
| 2026-10-04 07:52 | alive | 2.0 s | 15 | 3.3k | |
| 2026-10-03 20:32 | alive | 1.8 s | 15 | 3.3k | |
| 2026-10-03 17:49 | alive | 454 ms | 15 | 3.3k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/com.southlondonscientific/hermes)
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.