eqsl-mcp

MCP server for eQSL.cc — download incoming eQSLs, verify QSOs, check AG status, and query upload history through any MCP-compatible AI assistant.

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

Install

uvx eqsl-mcp            # run it; nothing to install

Tools

Tool	Auth	Description
eqsl_inbox	Yes	Download incoming eQSLs with date/confirmation filters
eqsl_verify	No	Check if a specific QSO exists in eQSL
eqsl_ag_check	No	Check if a callsign has AG (Authenticity Guaranteed) status
eqsl_download	Yes	Download your eQSL inbox as raw ADIF, to import into your logger
eqsl_last_upload	No	When did a persona last upload to eQSL
get_version_info	No	Service version + upstream eQSL.cc endpoint version (fleet identity attestation)

Quick Start

1. Set up credentials

eqsl-mcp uses qso-graph-auth personas for credential management:

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

# A persona (your callsign and the dates it covers), then eQSL for it
qso-graph-auth persona add --name ki7mt --callsign KI7MT --start 2020-01-01
qso-graph-auth provider enable ki7mt eqsl
qso-graph-auth creds set ki7mt eqsl      # asks for your username, then your password (hidden)

All three steps are needed: without provider enable, the server reports that the persona has no eqsl ref.

2. Configure your MCP client

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

Claude Code

Add to .claude/settings.json:

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

ChatGPT Desktop

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

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

Cursor

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

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

VS Code / GitHub Copilot

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

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

Gemini CLI

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

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

3. Ask questions

"Show me all eQSLs received this week"

"How many unconfirmed eQSLs do I have on 20m FT8?"

"Does W1AW have AG status on eQSL?"

"Verify my QSO with KI7MT on 20m on March 1, 2026"

Testing Without Credentials

The two public tools (eqsl_verify and eqsl_ag_check) work without any credentials.

For eqsl_inbox testing, set the mock environment variable:

EQSL_MCP_MOCK=1 eqsl-mcp

Or point to a local ADIF file:

EQSL_MCP_MOCK=1 EQSL_MCP_ADIF=/path/to/test.adi eqsl-mcp

MCP Inspector

eqsl-mcp --transport streamable-http --port 8001

Then open the MCP Inspector at http://localhost:8001.

Development

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

Date Formats

eQSL uses different date formats across endpoints. eqsl-mcp normalizes everything — you always use YYYY-MM-DD:

You provide	eqsl-mcp sends	Endpoint
2026-03-01	202603010000	DownloadInBox (RcvdSince)
2026-03-01	03/01/2026	VerifyQSO (QSODate)

Mode Matching

eQSL requires exact mode matching. SSB won't match USB/LSB. PSK won't match PSK31. Use the exact mode logged by the other station.

Known Quirks

• AG list cache: the Authenticity Guaranteed member list is cached for 4 hours (eQSL updates it about six times a day), in ~/.cache/eqsl-mcp/ag_members.txt ($XDG_CACHE_HOME if set; %LOCALAPPDATA%\eqsl-mcp\ on Windows).
• Inbox download: eQSL returns an HTML page that links to the .adi file, so the inbox is fetched in two steps. If eQSL answers with ADIF directly, that is used as is.

License

GPL-3.0-or-later