io.github.cyanheads/medical-codes-mcp-server
medical-codes-mcp-server
Offline US medical code lookup and crosswalk — ICD-10-CM/PCS, HCPCS Level II, RxNorm. Keyless.
alive probed 2026-10-09 · HTTP 200
6tools
5.6ktokens in Claude Opus 5.5
5.7ktokens in Claude Code
2.8 %of a 200k context window
3.5ko200k_base estimate
338 msto initialize
74 msto list tools
- Endpoint
- https://medical-codes.caseyjhand.com/mcp (streamable-http)
- Host
- medical-codes.caseyjhand.com
- Protocol
- 2025-11-25
- Reports itself as
- medical-codes-mcp-server 0.4.1
- Capabilities
- logging, prompts, resources, tools
- Instructions
- 1 575 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/cyanheads/medical-codes-mcp-server
- Registry
- active, updated 2026-10-08 · registry entry
- Reachable
- 7 of the last 7 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| medcode_map_codes | 1 317 | 37 % |
| medcode_get_code | 632 | 18 % |
| medcode_search_codes | 569 | 16 % |
| medcode_browse_hierarchy | 489 | 14 % |
| medcode_check_code | 349 | 10 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-09 11:18 | alive | 618 ms | 6 | 5.6k | 3.5k |
| 2026-10-05 14:39 | alive | 338 ms | 6 | 5.6k | 3.5k |
| 2026-10-05 00:33 | alive | 190 ms | 6 | 3.5k | |
| 2026-10-04 10:04 | alive | 327 ms | 6 | 3.5k | |
| 2026-10-04 07:57 | alive | 341 ms | 6 | 3.5k | |
| 2026-10-03 20:37 | alive | 648 ms | 6 | 3.5k | |
| 2026-10-03 17:53 | alive | 386 ms | 6 | 3.5k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.cyanheads/medical-codes-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.