What rules are supported by the calculator?

The calculator supports RULE_12 (21 days), NOTICE_OF_APPEAL (30 days), and RULE_59 (28 days). You can use the `list_supported_rules` tool to see the full list.

How are weekends and holidays handled?

If the calculated deadline falls on a Saturday, Sunday, or a US federal holiday, the tool automatically extends the deadline to the next available business day.

Can I check if a specific date is a valid starting point?

Yes, use the `check_date_validity` tool to determine if a provided date is a business day or falls on a weekend/holiday.

US Filing Deadline Calculator MCP Connector for Claude

A+

Calculate US federal court filing deadlines with automatic weekend and holiday adjustments.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides specialized tools for legal professionals to determine US federal procedural filing deadlines. By using calculate_deadline, you can input an event date and a rule type (such as RULE_12 or NOTICE_OF_APPEAL) to find the final deadline, automatically adjusted for weekends and federal holidays. The server also includes list_supported_rules to browse available legal rules and check_date_validity to verify if a specific date is a valid business day for starting a legal clock.

legal-techdeadline-calculatorus-federal-courtprocedural-rulesautomation

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_xczhCUuGLCCcoe0OvByJz6fGKokjLrq0OWTiMk6j/mcp

② Claude Code (terminal)

claude mcp add --transport http us-filing-deadline-calculator https://edge.vinkius.com/vk_preview_xczhCUuGLCCcoe0OvByJz6fGKokjLrq0OWTiMk6j/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "us-filing-deadline-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_xczhCUuGLCCcoe0OvByJz6fGKokjLrq0OWTiMk6j/mcp"
    }
  }
}

Get full access on Vinkius

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