io.github.theluckystrike/us-federal-holidays-business-days-mcp

up checked 2026-11-12T10:38:24.546Z

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Publisher-provided title

US Federal Holidays and Business Days

Publisher-provided description

Exact U.S. federal holidays and business days 1971-2100, OPM and Federal Reserve observance.

Summary by lookupd

Checks business days, adds or counts them, and lists U.S. federal and Federal Reserve holidays for dates from 1971 to 2100.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http us-federal-holidays-business-days https://us-federal-holidays-business-days-mcp.lipmichal.workers.dev/mcp

Codex, remote (streamable-http)

codex mcp add us-federal-holidays-business-days --url https://us-federal-holidays-business-days-mcp.lipmichal.workers.dev/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "us-federal-holidays-business-days": {
      "url": "https://us-federal-holidays-business-days-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (5 tools)

Publisher-provided text

• list_federal_holidays Exact U.S. federal holidays for any year 1971-2100 under 5 U.S.C. 6103: legal date, OPM observed date (Saturday -> Friday, Sunday -> Monday, so New Year's Day 2
• is_business_day Says whether a date (1971-2100) is a business day on the U.S. federal (OPM) calendar or the Federal Reserve banking calendar, names the holiday if any, and retu
• add_business_days Adds (or with a negative number subtracts) N business days to a date, skipping weekends and observed U.S. federal or Federal Reserve holidays exactly. The start
• count_business_days Counts business days between two dates (1971-2100) on the U.S. federal or Federal Reserve calendar, excluding weekends and observed holidays. include_start and
• invoice_due_date Computes an invoice due date from an issue date and net terms in calendar days (Net 30 = 30), then optionally rolls a weekend or U.S. holiday due date: followin

Details

• Version: 1.0.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 647 ms
• First indexed: 2026-11-01T09:57:49.379Z
• Last seen in registry: 2026-11-01T09:57:49.379Z
• Repository: https://github.com/theluckystrike/us-federal-holidays-business-days-mcp
• Website: https://us-federal-holidays-business-days-mcp.lipmichal.workers.dev/

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• 62930 servers
• Last crawl: 2026-11-13T00:39:08.687Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp