cq-zones-mcp¶

Source: CQ's WAZ Zone Definitions ("Updated and correct as of April 1, 2018"), © CQ Communications, Inc. and the World Wide Radio Operators Foundation (WWROF). The 40 CQ zones are CQ's: this package serves facts from CQ's list, each citing the zone it comes from, and links to CQ's page rather than copying it. Our GPL-3.0 licence covers our code, not CQ's data.

Checked against: AD1C's country files (Jim Reisert, AD1C), ADIF 3.1.7's subdivision zones, and ARRL's DXCC list. The tests fetch AD1C's and ARRL's files from their sites to validate the facts; neither is included here. where they differ, the owner's list wins (see docs/TRANSCRIPTION.md).

MCP server for CQ zones as CQ publishes them: the 40 zones of CQ's WAZ Zone Definitions (2018-04-01), the zones used by CQ's Worked All Zones award and the CQ World Wide DX Contest. Each zone's entities and subdivisions are given in ADIF's own DXCC and subdivision codes, with CQ's own wording where it splits an area.

Part of the qso-graph project. No network, no authentication: the facts from the owner's list ship with the package, and every answer names its source.

Install¶

uvx cq-zones-mcp            # run it; nothing to install

Tools¶

Tool	Description	Key Parameters
`cq_zones_lookup`	One zone: its name and every entity, subdivision and boundary CQ lists, with the citation	code
`cq_zones_codes_for`	Which zones cover an ADIF DXCC entity, or one of its subdivisions	dxcc, subdivision
`cq_zones_search`	Find zones by name, prefix or wording	text, limit
`cq_zones_valid_on`	Whether a zone was valid on a date (CQ zones have no validity window)	code, on_date
`cq_zones_source_info`	Owner, edition, terms, and the owner's file's URL and SHA-256	—
`get_version_info`	Service version + the owner's edition served (fleet identity attestation)	—

Quick Start¶

No credentials needed — just install and configure your MCP client.

Configure your MCP client¶

cq-zones-mcp works with any MCP-compatible client. Add the server config and restart — tools appear automatically.

Claude Desktop¶

Add to claude_desktop_config.json (~/Library/Application Support/Claude/ on macOS, %APPDATA%\Claude\ on Windows):

{
  "mcpServers": {
    "cq-zones": {
      "command": "uvx",
      "args": ["cq-zones-mcp"]
    }
  }
}

Claude Code¶

Add to .claude/settings.json:

{
  "mcpServers": {
    "cq-zones": {
      "command": "uvx",
      "args": ["cq-zones-mcp"]
    }
  }
}

ChatGPT Desktop¶

{
  "mcpServers": {
    "cq-zones": {
      "command": "uvx",
      "args": ["cq-zones-mcp"]
    }
  }
}

Cursor¶

Add to .cursor/mcp.json (project-level) or ~/.cursor/mcp.json (global):

{
  "mcpServers": {
    "cq-zones": {
      "command": "uvx",
      "args": ["cq-zones-mcp"]
    }
  }
}

VS Code / GitHub Copilot¶

Add to .vscode/mcp.json in your workspace:

{
  "servers": {
    "cq-zones": {
      "command": "uvx",
      "args": ["cq-zones-mcp"]
    }
  }
}

Gemini CLI¶

Add to ~/.gemini/settings.json (global) or .gemini/settings.json (project):

{
  "mcpServers": {
    "cq-zones": {
      "command": "uvx",
      "args": ["cq-zones-mcp"]
    }
  }
}

Ask questions¶

"Which CQ zone is Quebec in?"

"What does CQ zone 23 cover?"

"Which CQ zones does Canada span?"

MCP Inspector¶

cq-zones-mcp --transport streamable-http --port 8016

Then open the MCP Inspector at http://localhost:8016.

Development¶

git clone https://github.com/qso-graph/cq-zones-mcp.git
cd cq-zones-mcp
uv sync --group dev
uv run pytest

scripts/fetch_published.py fetches the owner's document(s) into published/ (not committed) and checks their SHA-256s; uv run pytest --live runs the tests that need them. scripts/build.py regenerates derived/ and load.sql, a PostgreSQL load for QSO Graph's reference data (load QG ADIF's adif schema first).

License¶

cq-zones-mcp's own code is GPL-3.0-or-later. See LICENSE. The data it serves is the owner's, credited at the top of this page: our licence doesn't cover it, and we claim no rights in it. The owner's document itself is not included; data/SOURCE.json records its URL and SHA-256 so anyone can check the facts against it. Files we built from the facts (data/derived/) are ours and labelled as ours. How the owner's text was read is recorded in docs/TRANSCRIPTION.md. See NOTICE.

Tool Reference¶

Generated from the released server's own tool definitions.

cq_zones_codes_for¶

Which CQ zones cover an ADIF DXCC entity, or one of its subdivisions. Where CQ splits an entity (VE2 Quebec at the 50th parallel), each zone is returned with CQ's boundary wording.

Parameter	Type	Required	Default	Description
`dxcc`	integer	Yes		ADIF DXCC entity code (e.g. 291 for the United States, 1 for Canada).
`subdivision`	string	No	`null`	ADIF Primary_Administrative_Subdivision code, e.g. "QC" or "AZ".

cq_zones_lookup¶

One CQ zone: its name and every entity, subdivision and boundary CQ lists for it, with ADIF codes and the citation.

Parameter	Type	Required	Default	Description
`code`	string	Yes		A CQ zone number, 1 to 40.

cq_zones_search¶

Find codes whose name, prefixes, area wording or attributes contain every word of text.

Parameter	Type	Required	Default	Description
`text`	string	Yes		Words to look for, e.g. "Quebec", "VE2" or "Antarctic".
`limit`	integer	No	`50`	Most records to return (1 to 200, default 50).

cq_zones_source_info¶

Who owns this list, which edition is served, its terms, and the owner's files' URLs and SHA-256s.

No parameters.

cq_zones_valid_on¶

Whether a CQ zone was valid on a date. CQ's list gives no validity window, so every zone it lists is valid; the tool exists so every owner-list server answers the same questions.

Parameter	Type	Required	Default	Description
`code`	string	Yes		A CQ zone number, 1 to 40.
`on_date`	string	Yes		The date, YYYY-MM-DD.

get_version_info¶

Get cq-zones-mcp's version and the edition of CQ's list it serves.

Returns: service_name, service_version (PyPI), and spec_version (the owner's edition).

No parameters.