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.
- GitHub stars
- 1
- tools
- 6
- transport
- STDIO
- last updated
- Oct 29, 2026
Tools
6 toolsPublic tool metadata for what this MCP can expose to an agent.
lotw_confirmationsQuery confirmed QSLs with band/mode/call/date filters
Query confirmed QSLs with band/mode/call/date filters
No parameter schema in public metadata yet.
lotw_qsosQuery all uploaded QSOs (confirmed and unconfirmed)
Query all uploaded QSOs (confirmed and unconfirmed)
No parameter schema in public metadata yet.
lotw_dxcc_creditsDXCC award credits from LoTW confirmations
DXCC award credits from LoTW confirmations
No parameter schema in public metadata yet.
lotw_downloadDownload QSOs as ADIF file
Download QSOs as ADIF file
No parameter schema in public metadata yet.
lotw_user_activityCheck if a callsign uses LoTW and when they last uploaded
Check if a callsign uses LoTW and when they last uploaded
No parameter schema in public metadata yet.
get_version_infoService version + upstream LoTW schema version (fleet identity attestation)
Service version + upstream LoTW schema version (fleet identity attestation)
No parameter schema in public metadata yet.
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lotw-mcp
MCP server for ARRL Logbook of The World (LoTW)—query confirmations, uploaded QSOs, DXCC credits, and user activity through any MCP-compatible AI assistant.
Part of the qso-graph project. Read-only—uploads require TQSL digital signatures and are out of scope.
Install
uvx lotw-mcp # run it; nothing to install
Tools
Details
- Repository
- github.com/qso-graph/lotw-mcp
- Package
lotw-mcp- Transport
- STDIO
- Registry
- MCP registry, active