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.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "fcc-spectrum-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/fcc-spectrum-mcp-server@0.3.0"
      ],
      "env": {
        "MCP_LOG_LEVEL": "info",
        "FCC_SPECTRUM_MIRROR_DIR": ".mirror/fcc-uls",
        "FCC_SPECTRUM_SERVICES": "LMpriv,LMcomm,LMbcast,micro,cell,market,paging,coast,mdsitfs,amat",
        "FCC_SPECTRUM_REDACT_INDIVIDUALS": "true",
        "FCC_SPECTRUM_BASE_URL": "https://data.fcc.gov/download/pub/uls"
      }
    }
  }
}
Environment variables
  • MCP_LOG_LEVELSets the minimum log level for output (e.g., 'debug', 'info', 'warn').
  • FCC_SPECTRUM_MIRROR_DIRDirectory for the local ULS index generations, current.json, the ingest lock, and temp zips. A relative path resolves against the working directory, so set an absolute path.
  • FCC_SPECTRUM_SERVICESComma list of weekly ULS service groups to index, case-insensitive. Opt-in: gmrs, ship, aircr.
  • FCC_SPECTRUM_REDACT_INDIVIDUALSRedact individual licensees and trustee names and exclude individuals from name search. Only false/0/no/off disables it.
  • FCC_SPECTRUM_BASE_URLULS bulk file host root, read at ingest time only.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.3.0
Registry
active
Published
10/26/2026

Remotes

  • streamable-httphttps://fcc-spectrum.caseyjhand.com/mcp

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