Lotw Mcp

Connects to ARRL's Logbook of The World to query QSO confirmations, DXCC credits, and uploaded contacts through six tools. You can filter QSLs by band, mode, callsign, and date, check DXCC award progress, or look up whether a callsign uses LoTW and when they last uploaded. Requires qso-graph-auth personas for credential management, though the user activity lookup works without authentication. Responses can be slow since LoTW itself takes 30 to 60 seconds on large queries, so you'll want to use date filters. Read-only by design since uploads need TQSL digital signatures. Useful if you're working with contest logs, tracking award progress, or building tools around amateur radio contact verification.