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Date Calculator MCP Server

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Compute spans between calendar dates (days, weeks, business days, weekend counts, and calendar breakdown) and add or subtract days with optional weekend skipping. Pure computation — no external calls.

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AI Skill
SKILL.md

Domain knowledge for Date Calculator — workflow patterns, data models, and gotchas for your AI agent.

Date Calculator

Work with calendar dates in YYYY-MM-DD form: measure how far apart two dates are, or shift a date by a number of days.

Capabilities

  • Date span: Days between two dates, approximate weeks, and a calendar years / months / days breakdown. Optionally treat the end date as included in the span or as an exclusive boundary.
  • Business days in range: Count of Monday–Friday days in that span; weekend days (Saturday and Sunday) counted separately.
  • Add or subtract days: Move forward or backward from an anchor date by an integer number of days. Optionally skip weekends so only weekdays count as steps (still moves through the real calendar).

Gotchas

  • Business days exclude Saturday and Sunday only — not public holidays or market calendars.
  • YYYY-MM-DD is required; other formats are rejected.
  • Inclusive end: When including the end date, the counted span follows that rule consistently for totals, business days, and weekend counts.

Tools in this Server (2)

Date Calculator Add Subtract

Add or subtract days from a YYYY-MM-DD anchor. Optionally count only business days (weekends skipped). Returns the result date, day of week, and when ...

Date Calculator Difference

Compute the span between two YYYY-MM-DD dates: total days, approximate weeks, calendar years/months/days breakdown, business days (Monday–Friday only)...

Frequently Asked Questions

What is the Date Calculator MCP server?

Compute spans between calendar dates (days, weeks, business days, weekend counts, and calendar breakdown) and add or subtract days with optional weekend skipping. Pure computation — no external calls. It provides 2 tools that AI agents can use through the Model Context Protocol (MCP).

How do I connect Date Calculator to my AI agent?

Add the MCPBundles server URL to your MCP client configuration (Claude Desktop, Cursor, VS Code, etc.). The URL format is: https://mcp.mcpbundles.com/bundle/date-calculator. Authentication is handled automatically.

How many tools does Date Calculator provide?

Date Calculator provides 2 tools that can be called by AI agents, along with a SKILL.md that gives your AI agent domain knowledge about when and how to use them.

What authentication does Date Calculator require?

Date Calculator uses open data APIs — no authentication required.

Setup Instructions

Connect Date Calculator to any MCP client in minutes

MCP URL
https://mcp.mcpbundles.com/bundle/date-calculator
Claude.aiCursorVS CodeVS Code InsidersGooseLM StudioCherry StudioChatGPT

One-click install:

Install on Claude.aiInstall for organization (admins)

The link prefills the Add custom connector dialog — you still review the values and click Add, then Connect to complete OAuth.

Or add manually

  1. Open claude.ai → Settings → Connectors.
  2. Click the + button and choose Add custom connector.
  3. Set Name to Date Calculator and paste the MCP URL into Remote MCP server URL.
  4. Click Add. Date Calculator will appear under Not connected — select it and click Connect to complete OAuth.
Name: Date Calculator
Remote MCP server URL: https://mcp.mcpbundles.com/bundle/date-calculator
Authentication: OAuth

Custom connectors at claude.ai require a paid Claude plan (Pro, Max, Team, or Enterprise).

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