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fcc-spectrum-mcp-server

io.github.cyanheads/fcc-spectrum-mcp-server

Search FCC radio licenses, find nearby licensed sites, and see who is licensed on a frequency.

Yes, your AI can use this right now.Answered a live MCP handshake in 320 ms with no sign-in needed and exposes 5 tools.

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URL: https://fcc-spectrum.caseyjhand.com/mcp

5 tools, verified live

Pulled straight from the server with tools/list on 2026-10-17.
fcc_spectrum_search_licensesread-only

Search FCC ULS licenses and spectrum leases by callsign, licensee name, FCC Registration Number (FRN), market code, radio service, status, and licensee state, returning one row per record with its unique system identifier (USI) for fcc_spectrum_get_license. At least one of callsign, licensee, frn, market_code, radio_service, or state is required; status only narrows. Defaults to active records; pa

fcc_spectrum_get_licenseread-only

Fetch one FCC ULS license or spectrum lease in full by callsign or unique system identifier (USI): licensee (the lessee on a lease), status and key dates, its locations with coordinates, elevation, structure height, and ASR number, each location's antennas, and each antenna's authorized frequencies with power, ERP/EIRP, station class, transmitter, and emission designators; geographic-area licenses

fcc_spectrum_find_transmittersread-only

Find FCC-licensed sites within a radius of a coordinate, nearest first, each with its callsign, licensee, distance, coordinates, filed location type and class, ground elevation, structure height, and authorized frequencies. Filter by frequency or band, radio service, location type, location class, and live status (active by default). Unset location_class keeps all filed roles, including receive an

fcc_spectrum_search_frequenciesread-only

Find FCC ULS authorizations whose occupied band overlaps a frequency or band. Site assignments (land mobile, microwave, paging, cellular sites) return one row per site and frequency with the site's state and coordinates; market-area licenses and leases (PCS, AWS, 700 MHz, 3.45 and 3.7 GHz, and other auctioned blocks) return one row per spectrum block with its market code and name; 3.5 GHz Priority

fcc_spectrum_list_referenceread-only

Decode FCC ULS codes used by the other tools — radio service codes, station classes, license statuses, location types, antenna types, applicant types, amateur operator classes — or report coverage: which service groups this index holds, record counts, and when each was last updated. Works before the index is built. Station classes describe licensed categories, not actual on-air activity.

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