fcc-spectrum-mcp-server

An MCP server that provides tools to search the FCC's Universal Licensing System for radio licenses, find nearby transmitter sites, and identify licensees on specific frequencies. It supports STDIO or Streamable HTTP connections and covers various radio services including land mobile, microwave, and amateur radio without requiring an API key.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by cyanheads

Vendor documentation

What you can do with it

Search licenses by callsign, licensee name, or market code
Find FCC-licensed sites within a radius of a coordinate
Identify who is authorized on a specific frequency or band
Read full license details including antennas and frequencies

Source and maintenance

Community listingRegistry 0.3.0

mcp-registry: io.github.cyanheads/fcc-spectrum-mcp-server@0.3.0 Source repository

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@cyanheads/fcc-spectrum-mcp-server 0.3.0

npmnpx

@cyanheads/fcc-spectrum-mcp-server package definition

{
  "version": "0.3.0",
  "transport": "stdio",
  "identifier": "@cyanheads/fcc-spectrum-mcp-server",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "MCP_LOG_LEVEL",
      "format": "string",
      "default": "info",
      "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warn')."
    },
    {
      "name": "FCC_SPECTRUM_MIRROR_DIR",
      "format": "string",
      "default": ".mirror/fcc-uls",
      "description": "Directory 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."
    },
    {
      "name": "FCC_SPECTRUM_SERVICES",
      "format": "string",
      "default": "LMpriv,LMcomm,LMbcast,micro,cell,market,paging,coast,mdsitfs,amat",
      "description": "Comma list of weekly ULS service groups to index, case-insensitive. Opt-in: gmrs, ship, aircr."
    },
    {
      "name": "FCC_SPECTRUM_REDACT_INDIVIDUALS",
      "format": "string",
      "default": "true",
      "description": "Redact individual licensees and trustee names and exclude individuals from name search. Only false/0/no/off disables it."
    },
    {
      "name": "FCC_SPECTRUM_BASE_URL",
      "format": "string",
      "default": "https://data.fcc.gov/download/pub/uls",
      "description": "ULS bulk file host root, read at ingest time only."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "fcc-spectrum-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/fcc-spectrum-mcp-server@0.3.0"
      ],
      "env": {
        "MCP_LOG_LEVEL": "<YOUR_MCP_LOG_LEVEL>",
        "FCC_SPECTRUM_MIRROR_DIR": "<YOUR_FCC_SPECTRUM_MIRROR_DIR>",
        "FCC_SPECTRUM_SERVICES": "<YOUR_FCC_SPECTRUM_SERVICES>",
        "FCC_SPECTRUM_REDACT_INDIVIDUALS": "<YOUR_FCC_SPECTRUM_REDACT_INDIVIDUALS>",
        "FCC_SPECTRUM_BASE_URL": "<YOUR_FCC_SPECTRUM_BASE_URL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "fcc-spectrum-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/fcc-spectrum-mcp-server@0.3.0"
      ],
      "env": {
        "MCP_LOG_LEVEL": "<YOUR_MCP_LOG_LEVEL>",
        "FCC_SPECTRUM_MIRROR_DIR": "<YOUR_FCC_SPECTRUM_MIRROR_DIR>",
        "FCC_SPECTRUM_SERVICES": "<YOUR_FCC_SPECTRUM_SERVICES>",
        "FCC_SPECTRUM_REDACT_INDIVIDUALS": "<YOUR_FCC_SPECTRUM_REDACT_INDIVIDUALS>",
        "FCC_SPECTRUM_BASE_URL": "<YOUR_FCC_SPECTRUM_BASE_URL>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "fcc-spectrum-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/fcc-spectrum-mcp-server@0.3.0"
      ],
      "env": {
        "MCP_LOG_LEVEL": "<YOUR_MCP_LOG_LEVEL>",
        "FCC_SPECTRUM_MIRROR_DIR": "<YOUR_FCC_SPECTRUM_MIRROR_DIR>",
        "FCC_SPECTRUM_SERVICES": "<YOUR_FCC_SPECTRUM_SERVICES>",
        "FCC_SPECTRUM_REDACT_INDIVIDUALS": "<YOUR_FCC_SPECTRUM_REDACT_INDIVIDUALS>",
        "FCC_SPECTRUM_BASE_URL": "<YOUR_FCC_SPECTRUM_BASE_URL>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "fcc-spectrum-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/fcc-spectrum-mcp-server@0.3.0"
      ],
      "env": {
        "MCP_LOG_LEVEL": "<YOUR_MCP_LOG_LEVEL>",
        "FCC_SPECTRUM_MIRROR_DIR": "<YOUR_FCC_SPECTRUM_MIRROR_DIR>",
        "FCC_SPECTRUM_SERVICES": "<YOUR_FCC_SPECTRUM_SERVICES>",
        "FCC_SPECTRUM_REDACT_INDIVIDUALS": "<YOUR_FCC_SPECTRUM_REDACT_INDIVIDUALS>",
        "FCC_SPECTRUM_BASE_URL": "<YOUR_FCC_SPECTRUM_BASE_URL>"
      }
    }
  }
}

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