MCP server

fcc-spectrum-mcp-server

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

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

5

Token cost

About 4,324 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http fcc-spectrum-mcp-server https://fcc-spectrum.caseyjhand.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.fcc-spectrum-mcp-server]
url = "https://fcc-spectrum.caseyjhand.com/mcp"

Gemini CLI

{"mcpServers":{"fcc-spectrum-mcp-server":{"httpUrl":"https://fcc-spectrum.caseyjhand.com/mcp"}}}

Cursor

{"mcpServers":{"fcc-spectrum-mcp-server":{"url":"https://fcc-spectrum.caseyjhand.com/mcp"}}}

VS Code

{"servers":{"fcc-spectrum-mcp-server":{"type":"http","url":"https://fcc-spectrum.caseyjhand.com/mcp"}}}

Antigravity

agy mcp add fcc-spectrum-mcp-server https://fcc-spectrum.caseyjhand.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"fcc-spectrum-mcp-server","server_url":"https://fcc-spectrum.caseyjhand.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"fcc-spectrum-mcp-server","server_url":"https://fcc-spectrum.caseyjhand.com/mcp"}

Tools

• fcc_spectrum_find_transmitters ~1036 tokens
  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, a
• fcc_spectrum_get_license ~854 tokens
  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, each antenna's authorized frequencies with
• fcc_spectrum_list_reference ~405 tokens
  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
• fcc_spectrum_search_frequencies ~1128 tokens
  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
• fcc_spectrum_search_licenses ~901 tokens
  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, m

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