LienDeadline

US mechanics lien and preliminary notice deadlines for construction material suppliers, with statute-cited lien guides for all 50 states and DC. 5 tools: `calculate_supplier_deadlines`, `get_state_lien_guide` and `list_state_lien_guides` need no key; `calculate_lien_deadline` and `list_supported_states` need an optional customer key in `LIENDEADLINE_API_KEY`. Local stdio server, MIT license. Official MCP Registry id `io.github.LienDeadline/liendeadline-mcp`. Install: `npx -y liendeadline-mcp`.

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