
LienDeadline
Statute-cited lien and notice deadlines for material suppliers; lien guides for 50 states and DC.
Connect it
Settings → Connectors → Add custom connector
URL: https://mcp.liendeadline.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://mcp.liendeadline.com/mcp{
"mcpServers": {
"liendeadline-mcp": {
"url": "https://mcp.liendeadline.com/mcp"
}
}
}claude mcp add --transport http liendeadline-mcp https://mcp.liendeadline.com/mcp{
"servers": {
"liendeadline-mcp": {
"type": "http",
"url": "https://mcp.liendeadline.com/mcp"
}
}
}{
"mcpServers": {
"liendeadline-mcp": {
"command": "npx",
"args": [
"-y",
"liendeadline-mcp@0.5.4"
],
"env": {
"LIENDEADLINE_API_KEY": "<value>"
}
}
}
}claude mcp add liendeadline-mcp -- npx -y liendeadline-mcp@0.5.45 tools, verified live
calculate_supplier_deadlinesCalculates a construction material supplier's preliminary notice and lien filing deadlines from delivery events (contract supplier-events-v2), for questions that need deadline dates. Available baselines cover Florida and Kansas private projects; other states and public projects return review_required, which is a valid result, not an error. How the parameters depend on each other: last_delivery_dat
get_supplier_questionsread-onlyReturns the current supplier-events-v3 scope support, jurisdiction-specific yes/no/unknown event questions, date policies, sources and exact rule/question identities for a material supplier. Requires a customer key; no delivery dates needed. Discovery does not consume calculation quota. A 503 means the reviewed source is unavailable. Approval of research alone does not activate a scope.
calculate_supplier_deadlines_v3Evaluates supplier-events-v3 project facts against the exact discovered rule and question identities. Returns independent notice and lien outcomes with sources and an exact nested input echo. Only calculated outcomes contain statutory deadline dates; review candidates remain unresolved. An optional verified action_by is a Conservative action date planning target under qualified review; the statuto
get_state_lien_guideread-onlyReturns LienDeadline's editorial mechanics lien and preliminary notice guide for one state or DC: rules (rule summary with statute citations), deadline_rows (deadline table), faqs (common questions) and source_url (the guide's web page), roughly 4 KB of JSON. For questions about how a state's lien or notice rules work, why a deadline falls where it does, or which statute applies. An unknown state
list_state_lien_guidesread-onlyLists every published state lien guide in one response, without pagination: count plus state_code, title and slug for all 50 states and DC, in alphabetical order by state name. It lists editorial guides only and does not indicate which states have calculated deadlines. Takes no parameters. Public and read-only; no key needed.
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