io.github.LienDeadline/liendeadline-mcp

Ask your AI assistant when your preliminary notice and mechanics lien deadlines fall, and get the statute behind every date. This MCP server connects Claude, ChatGPT, Cursor, VS Code and any other MCP client to LienDeadline, the deadline engine for US construction material suppliers. There is nothing to install: add one URL.

Quick start · What you can ask · Coverage · Tools · Privacy · liendeadline.com

Why LienDeadline

Miss a preliminary notice or a lien filing deadline and a supplier can lose its lien rights on the job, and with them the leverage to get paid. The rules change with the state, the project type and who hired you. LienDeadline turns your delivery dates into those deadlines and shows its work.

• Deadlines from delivery dates. Preliminary notice and lien filing deadlines from your first and last delivery and a few yes, no or unknown questions.
• The statute behind every date. Each deadline cites its source, so your team and your counsel can check it.
• Never a guessed date. Missing facts, states that aren't covered yet and public projects come back as "needs review", with the reason.
• Lien guides for all 50 states and DC. Rule summaries, deadline tables and common questions, with statute citations.
• Safe by design. Supplier discovery and calculations require a caller customer key; completed calculations consume plan allowance. Public guides need no account or key. Nothing sends notices, files liens or makes payments.

Quick start

Connecting to the hosted server and using public guides needs no install, account or key:

https://mcp.liendeadline.com/mcp

The no-authentication connection settings below cover the transport and public guides. Supplier discovery and calculations require the caller's dedicated customer key through the client's approved credential settings. Discovery does not consume calculation allowance; completed calculations do.

... View full README on GitHub