Qrz MCP

QRZ.com MCP server. Callsign lookup, DXCC resolution, logbook queries via QRZ XML API.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

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

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Capabilities & Tool Schemas (6)Self-reported

Inspect callable tools, capabilities, and parameters exposed to AI agents by Qrz MCP.

qrz_lookup

Callsign lookup (name, grid, DXCC, license class, QSL info, image)

qrz_dxcc

DXCC entity resolution from callsign or entity code

qrz_logbook_status

Logbook stats (QSO count, DXCC total, date range)

qrz_logbook_fetch

Query QSOs with filters and transparent pagination

qrz_download

Download full logbook as ADIF

get_version_info

Service version + upstream QRZ API version (fleet identity attestation)

Documentation Overview

qrz-mcp

MCP server for QRZ.com — callsign lookups, DXCC entity resolution, and logbook queries through any MCP-compatible AI assistant.

Part of the qso-graph project. Uses qso-graph-auth for credential management.

Install

Terminal

pip install qrz-mcp

Tools

Tool	API	Auth	Description
`qrz_lookup`	XML	Session key	Callsign lookup (name, grid, DXCC, license class, QSL info, image)
`qrz_dxcc`	XML	Session key	DXCC entity resolution from callsign or entity code
`qrz_logbook_status`	Logbook	API key	Logbook stats (QSO count, DXCC total, date range)
`qrz_logbook_fetch`	Logbook	API key	Query QSOs with filters and transparent pagination
`qrz_download`	Logbook	API key	Download full logbook as ADIF
`get_version_info`	—	None	Service version + upstream QRZ API version (fleet identity attestation)

Quick Start

1. Set up credentials

qrz-mcp uses qso-graph-auth personas for credential management. QRZ has two separate auth mechanisms — set up whichever you need:

bash

# Install qso-graph-auth if you haven't
pip install qso-graph-auth

# Create a persona
qso-auth persona create ki7mt --callsign KI7MT

# Enable QRZ provider
qso-auth persona provider ki7mt qrz --username KI7MT

# Set password (for XML API: qrz_lookup, qrz_dxcc)
qso-auth persona secret ki7mt qrz

# Set API key (for Logbook API: qrz_logbook_status, qrz_logbook_fetch)
qso-auth creds set --persona ki7mt --provider qrz --api-key YOUR_API_KEY

XML API (callsign lookup, DXCC) requires a QRZ XML Subscription ($35.95/yr). Free tier returns name and address only.

Logbook API requires an API key from QRZ Settings > API.

2. Configure your MCP client

qrz-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):

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

Claude Code

Add to .claude/settings.json:

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

ChatGPT Desktop

ChatGPT supports MCP via the OpenAI Agents SDK. Add under Settings > Apps & Connectors, or configure in your agent definition:

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

Cursor

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

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

VS Code / GitHub Copilot

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

config.json

{
  "servers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

Gemini CLI

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

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

3. Ask questions

"Look up W1AW on QRZ — what's their grid and license class?"

"What DXCC entity is VP8PJ?"

"How many QSOs do I have in my QRZ logbook?"

"Show me all 20m FT8 QSOs from my QRZ logbook this year"

Rate Limiting

QRZ enforces undocumented rate limits that can trigger 24-hour IP bans. qrz-mcp protects you:

500ms minimum delay between all API calls
Token bucket: 35 requests/minute
60s freeze on authentication failures
3600s freeze on connection refused (IP ban detection)
In-memory response cache (5 min for callsigns, 1 hour for DXCC)

Testing Without Credentials

Set the mock environment variable to test all 4 tools without QRZ credentials:

bash

QRZ_MCP_MOCK=1 qrz-mcp

MCP Inspector

bash

qrz-mcp --transport streamable-http --port 8002

Then open the MCP Inspector at http://localhost:8002.

Development

bash

git clone https://github.com/qso-graph/qrz-mcp.git
cd qrz-mcp
pip install -e .

QRZ Subscription Tiers

Feature	Free	XML Data ($35.95/yr)
Callsign lookups/day	100	Unlimited
Fields returned	Name + address only	All (grid, lat/lon, DXCC, class, QSL, image)
Logbook API	No	Yes
DXCC lookup	No	Yes

License

GPL-3.0-or-later

Read the full README →View source on GitHub →

Related MCP Servers

View all in Developer Tools View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

GitHub stars

Stargazers on the source repository.

Last commit

3mo ago

Most recent push to the default branch.

Tools exposed

Callable tools this server registers over MCP.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Qrz MCP

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "qrz-mcp": { "command": "npx", "args": ["-y", "qrz-mcp"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

48Quality signal: Fair · 48/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools24/30

Adoption & activity2/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

★ Featured

AllMCPs Server

The official MCP server for AllMCPs.com - submit and manage tools directly from your AI. The open directory for MCP servers. Connect Claude, Cursor, Windsurf, and AI agents to databases, tools, files, and APIs. Explore 10,000+ servers. AllMCPs is the premier, open directory for discovering, evaluating, and installing Model Context Protocol (MCP) servers to equip AI agents and LLMs with real-world superpowers.

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More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to Qrz MCP →Install in Claude Desktop Install in Cursor Install in VS Code

Qrz MCP

QRZ.com MCP server. Callsign lookup, DXCC resolution, logbook queries via QRZ XML API.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

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

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Capabilities & Tool Schemas (6)Self-reported

Inspect callable tools, capabilities, and parameters exposed to AI agents by Qrz MCP.

qrz_lookup

Callsign lookup (name, grid, DXCC, license class, QSL info, image)

qrz_dxcc

DXCC entity resolution from callsign or entity code

qrz_logbook_status

Logbook stats (QSO count, DXCC total, date range)

qrz_logbook_fetch

Query QSOs with filters and transparent pagination

qrz_download

Download full logbook as ADIF

get_version_info

Service version + upstream QRZ API version (fleet identity attestation)

Documentation Overview

qrz-mcp

MCP server for QRZ.com — callsign lookups, DXCC entity resolution, and logbook queries through any MCP-compatible AI assistant.

Part of the qso-graph project. Uses qso-graph-auth for credential management.

Install

Terminal

pip install qrz-mcp

Tools

Tool	API	Auth	Description
`qrz_lookup`	XML	Session key	Callsign lookup (name, grid, DXCC, license class, QSL info, image)
`qrz_dxcc`	XML	Session key	DXCC entity resolution from callsign or entity code
`qrz_logbook_status`	Logbook	API key	Logbook stats (QSO count, DXCC total, date range)
`qrz_logbook_fetch`	Logbook	API key	Query QSOs with filters and transparent pagination
`qrz_download`	Logbook	API key	Download full logbook as ADIF
`get_version_info`	—	None	Service version + upstream QRZ API version (fleet identity attestation)

Quick Start

1. Set up credentials

qrz-mcp uses qso-graph-auth personas for credential management. QRZ has two separate auth mechanisms — set up whichever you need:

bash

# Install qso-graph-auth if you haven't
pip install qso-graph-auth

# Create a persona
qso-auth persona create ki7mt --callsign KI7MT

# Enable QRZ provider
qso-auth persona provider ki7mt qrz --username KI7MT

# Set password (for XML API: qrz_lookup, qrz_dxcc)
qso-auth persona secret ki7mt qrz

# Set API key (for Logbook API: qrz_logbook_status, qrz_logbook_fetch)
qso-auth creds set --persona ki7mt --provider qrz --api-key YOUR_API_KEY

XML API (callsign lookup, DXCC) requires a QRZ XML Subscription ($35.95/yr). Free tier returns name and address only.

Logbook API requires an API key from QRZ Settings > API.

2. Configure your MCP client

qrz-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):

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

Claude Code

Add to .claude/settings.json:

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

ChatGPT Desktop

ChatGPT supports MCP via the OpenAI Agents SDK. Add under Settings > Apps & Connectors, or configure in your agent definition:

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

Cursor

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

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

VS Code / GitHub Copilot

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

config.json

{
  "servers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

Gemini CLI

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

config.json

{
  "mcpServers": {
    "qrz": {
      "command": "qrz-mcp"
    }
  }
}

3. Ask questions

"Look up W1AW on QRZ — what's their grid and license class?"

"What DXCC entity is VP8PJ?"

"How many QSOs do I have in my QRZ logbook?"

"Show me all 20m FT8 QSOs from my QRZ logbook this year"

Rate Limiting

QRZ enforces undocumented rate limits that can trigger 24-hour IP bans. qrz-mcp protects you:

500ms minimum delay between all API calls
Token bucket: 35 requests/minute
60s freeze on authentication failures
3600s freeze on connection refused (IP ban detection)
In-memory response cache (5 min for callsigns, 1 hour for DXCC)

Testing Without Credentials

Set the mock environment variable to test all 4 tools without QRZ credentials:

bash

QRZ_MCP_MOCK=1 qrz-mcp

MCP Inspector

bash

qrz-mcp --transport streamable-http --port 8002

Then open the MCP Inspector at http://localhost:8002.

Development

bash

git clone https://github.com/qso-graph/qrz-mcp.git
cd qrz-mcp
pip install -e .

QRZ Subscription Tiers

Feature	Free	XML Data ($35.95/yr)
Callsign lookups/day	100	Unlimited
Fields returned	Name + address only	All (grid, lat/lon, DXCC, class, QSL, image)
Logbook API	No	Yes
DXCC lookup	No	Yes

License

GPL-3.0-or-later

Read the full README →View source on GitHub →

Related MCP Servers

View all in Developer Tools View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

GitHub stars

Stargazers on the source repository.

Last commit

3mo ago

Most recent push to the default branch.

Tools exposed

Callable tools this server registers over MCP.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Qrz MCP

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "qrz-mcp": { "command": "npx", "args": ["-y", "qrz-mcp"] } }

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/qrz-mcp?style=directory)](https://allmcps.com/mcp/qrz-mcp)

HTML Embed

<a href="https://allmcps.com/mcp/qrz-mcp"><img src="https://allmcps.com/api/badge/qrz-mcp?style=directory" alt="Qrz MCP on AllMCPs" /></a>

Technical Specs & Signals

CategoryDeveloper Tools

48Quality signal: Fair · 48/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools24/30

Adoption & activity2/15

Community engagement0/10

★ Featured

AllMCPs Server

Explore Server →

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to Qrz MCP →Install in Claude Desktop Install in Cursor Install in VS Code