io.github.cyanheads/fcc-spectrum-mcp-server
fcc-spectrum-mcp-server
Search FCC radio licenses, find nearby licensed sites, and see who is licensed on a frequency.
alive probed 2026-10-14 · HTTP 200
5tools
6.2ktokens in Claude Opus 5.5
6.3ktokens in Claude Code
3.1 %of a 200k context window
3.7ko200k_base estimate
356 msto initialize
110 msto list tools
- Endpoint
- https://fcc-spectrum.caseyjhand.com/mcp (streamable-http)
- Host
- fcc-spectrum.caseyjhand.com
- Protocol
- 2025-11-25
- Reports itself as
- fcc-spectrum-mcp-server 0.2.0
- Capabilities
- logging, prompts, resources, tools
- Instructions
- 1 920 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/cyanheads/fcc-spectrum-mcp-server
- Registry
- active, updated 2026-10-13 · registry entry
- Reachable
- 7 of the last 7 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| fcc_spectrum_search_frequencies | 992 | 27 % |
| fcc_spectrum_search_licenses | 872 | 24 % |
| fcc_spectrum_find_transmitters | 854 | 23 % |
| fcc_spectrum_get_license | 664 | 18 % |
| fcc_spectrum_list_reference | 288 | 8 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-14 09:22 | alive | 637 ms | 5 | 6.2k | 3.7k |
| 2026-10-05 14:39 | alive | 356 ms | 5 | 5.8k | 3.4k |
| 2026-10-05 00:33 | alive | 216 ms | 5 | 3.4k | |
| 2026-10-04 10:04 | alive | 329 ms | 5 | 3.4k | |
| 2026-10-04 07:57 | alive | 393 ms | 5 | 3.4k | |
| 2026-10-03 20:37 | alive | 837 ms | 5 | 3.4k | |
| 2026-10-03 17:53 | alive | 559 ms | 5 | 3.4k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.cyanheads/fcc-spectrum-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.