About fldigi-mcp
fldigi-mcp is an MCP server published by sbrunner-atx in the Communication category: enables MCP clients like Claude Desktop to control the fldigi amateur radio digital modem application, including modem, rig, log, and transmit functions, with a callsign-based transmit safety gate.
Recent commit activity is the strongest signal that reported issues will get attention.
Install
git clone https://github.com/sbrunner-atx/fldigi-mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (22)
applicationprogram info + launch/stop the fldigi process (`fldigi.*`)
Parameters not published.
band_guidanceadvisory band/watering-hole help (experimental)
Parameters not published.
browserfldigi's Signal Browser: every station the decoder bank holds, with its text (needs the fldigi patch in `patches/`)
Parameters not published.
controlsAFC, SQL, Rev, Lock, RxID, TxID, status fields
Parameters not published.
diagnosticshost/network info for connectivity troubleshooting (no fldigi connection)
Parameters not published.
fldigi_callescape hatch — call any method by name, incl. future ones
Parameters not published.
flmsgflmsg (message forms) interworking
Parameters not published.
frequencydial frequency and waterfall sideband
Parameters not published.
ioARQ / KISS I/O port selection
Parameters not published.
legacydeprecated methods fldigi still serves, each with its current equivalent named
Parameters not published.
Show all 22 tools
logLogbook / contest fields; ADIF last/all records
Parameters not published.
modemOp Mode / modem select, carrier, bandwidth, AFC range, Olivia
Parameters not published.
navtexNAVTEX / SitorB mode
Parameters not published.
rigCAT control: mode, frequency, bandwidth, notch, QSY, meters
Parameters not published.
rsidRSID bursts heard in the passband, mode and frequency, without switching the modem (needs the rsid-hits patch in `patches/`)
Parameters not published.
signal_huntfind and name the signals in the receiver audio; rank CQing stations (experimental, `[hunt]` extra)
Parameters not published.
spotspotting / PSK Reporter
Parameters not published.
statusquick snapshot: version, mode, frequency, T/R, callsign, band
Parameters not published.
textRX/TX text and data streams
Parameters not published.
transmitT/R, Tune, abort, disable/enable Tx, macros, send — **callsign-gated**
Parameters not published.
tune_toset modem and carrier to a `signal_hunt` candidate, receive only
Parameters not published.
wefaxWEFAX (weather fax) mode
Parameters not published.
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