
Itu Zones Mcp
io.github.qso-graphv0.1.0Updated Oct 7, 2026
ITU zones as the IARU publishes them for amateur use, in ADIF's DXCC and subdivision codes
Overview
Lets an assistant look up IARU amateur-use ITU zones, their ADIF DXCC and subdivision codes, and which zones cover a given entity.
- What it does
- Serves the 90 ITU zones as the IARU publishes them for radio amateurs, each with its prefixes, subdivisions and boundary wording in ADIF DXCC and subdivision codes. Tools include itu_zones_lookup for one zone, itu_zones_codes_for for the zones covering a DXCC entity or subdivision, itu_zones_search by prefix or wording, itu_zones_valid_on for date validity, and itu_zones_source_info for owner, edition, terms and file hash. Answers name their source.
- When to use it
- Useful when working with amateur radio awards, contest or log data that needs ITU zone identification, or when mapping ADIF DXCC entities and subdivisions to zones. It is a read-only reference lookup, not a logging or contact tool.
- Requirements
- Runs locally over stdio, typically started with uvx, so a Python environment with uv/uvx is needed. No network access, accounts, API keys or environment variables are required; the zone facts ship with the package.
Installation
In SourceWeft
- Open Itu Zones Mcp in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
itu-zones-mcp
Source: the IARU's HF Managers Handbook, chapter 9.8, "Definition of ITU-Zones when used by radio amateurs" (IARU Region 1, v8.2; the chapter's pages are dated November 2000). The zone border-lines for amateur use are kept there under IARU Region 1 recommendation REC/99/LH/C4.2; the list was drafted by G3HTA from the ITU's CIRAF zones and approved by all three IARU regions. The 90 ITU zones are the IARU's: this package serves facts from that chapter, each citing its page and zone, and links to the handbook rather than copying it. Our GPL-3.0 licence covers our code, not the IARU'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 ITU zones as the IARU publishes them for amateur use: the 90 zones of chapter 9.8, "Definition of ITU-Zones when used by radio amateurs", of the IARU Region 1 HF Managers Handbook (v8.2), used by the IARU HF Championship and ITU-zone awards. Each zone's prefixes are given in ADIF's own DXCC and subdivision codes, with the IARU's own wording where it splits an area by a line.
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
Tools
Quick Start
No credentials needed — just install and configure your MCP client.
Configure your MCP client
itu-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):
Claude Code
Add to .claude/settings.json:
ChatGPT Desktop
Cursor
Add to .cursor/mcp.json (project-level) or ~/.cursor/mcp.json (global):
VS Code / GitHub Copilot
Add to .vscode/mcp.json in your workspace:
Gemini CLI
Add to ~/.gemini/settings.json (global) or .gemini/settings.json (project):
Ask questions
"Which ITU zone is Arizona in?"
"What does ITU zone 75 cover?"
"Which ITU zones does Antarctica span?"
MCP Inspector
Then open the MCP Inspector at http://localhost:8017.
Development
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
itu-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.
Source: README.md at commit 4c59d69
Tools
0Version history
1- v0.1.0LatestOct 7, 2026
