Control fldigi (amateur-radio digital modes) over XML-RPC: modem, frequency, rig, log, transmit.
Connect Runs on your machine
claude mcp add fldigi-mcp -e FLDIGI_CALLSIGN=<FLDIGI_CALLSIGN> -e FLDIGI_HOST=<FLDIGI_HOST> -e FLDIGI_PORT=<FLDIGI_PORT> -e FLDIGI_BAND_GUIDANCE=<FLDIGI_BAND_GUIDANCE> -e FLDIGI_REGION=<FLDIGI_REGION> -- uvx fldigi-mcp==0.4.1{
"mcpServers": {
"fldigi-mcp": {
"command": "uvx",
"args": [
"fldigi-mcp==0.4.1"
],
"env": {
"FLDIGI_CALLSIGN": "<FLDIGI_CALLSIGN>",
"FLDIGI_HOST": "<FLDIGI_HOST>",
"FLDIGI_PORT": "<FLDIGI_PORT>",
"FLDIGI_BAND_GUIDANCE": "<FLDIGI_BAND_GUIDANCE>",
"FLDIGI_REGION": "<FLDIGI_REGION>"
}
}
}
}{
"mcpServers": {
"fldigi-mcp": {
"command": "uvx",
"args": [
"fldigi-mcp==0.4.1"
],
"env": {
"FLDIGI_CALLSIGN": "<FLDIGI_CALLSIGN>",
"FLDIGI_HOST": "<FLDIGI_HOST>",
"FLDIGI_PORT": "<FLDIGI_PORT>",
"FLDIGI_BAND_GUIDANCE": "<FLDIGI_BAND_GUIDANCE>",
"FLDIGI_REGION": "<FLDIGI_REGION>"
}
}
}
}{
"servers": {
"fldigi-mcp": {
"type": "stdio",
"command": "uvx",
"args": [
"fldigi-mcp==0.4.1"
],
"env": {
"FLDIGI_CALLSIGN": "<FLDIGI_CALLSIGN>",
"FLDIGI_HOST": "<FLDIGI_HOST>",
"FLDIGI_PORT": "<FLDIGI_PORT>",
"FLDIGI_BAND_GUIDANCE": "<FLDIGI_BAND_GUIDANCE>",
"FLDIGI_REGION": "<FLDIGI_REGION>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
FLDIGI_CALLSIGNOptional | Operator callsign. Required to enable transmit; leave blank to stay receive-only. |
FLDIGI_HOSTOptional | fldigi XML-RPC host. |
FLDIGI_PORTOptional | fldigi XML-RPC port. |
FLDIGI_BAND_GUIDANCEOptional | Enable experimental advisory band guidance (on/off). |
FLDIGI_REGIONOptional | IARU region for band guidance: 1, 2, or 3. |
Details
| Package | [email protected] (PYPI, stdio) |
| First published | 12 Nov 2026 |
| Last updated | 12 Nov 2026 |
| Registry name | io.github.sbrunner-atx/fldigi-mcp |
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