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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use date-fns with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Compute rigorous procedural deadlines in business days without risking LLM mathematical hallucination.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 1 capability

The complete date-fns capability set.

These are the exact actions your AI can choose when you ask it to work with date-fns.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through date-fns.

  1. 01

    Calculate legal deadline

    Provide optional holidays to skip. Calculates exact procedural deadlines in business days, skipping weekends and optional holidays

Observed, not estimated

859ms average. Fast in production.

date-fns is checked daily against the live service.

Daily averagePeak 1094ms
Aug 20Today
Fastest day
653ms
Slowest day
1094ms
14-day trend
Slowing+12%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of date-fns, so you can see the experience inside your AI.

It does not authenticate your account with date-fns. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

date-fns Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_F8QakyPQ2iwGwcaM4ypH2i09iICzxyXl1oCkAoNB/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — date-fns capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "legal-deadline-calculator-engine-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_F8QakyPQ2iwGwcaM4ypH2i09iICzxyXl1oCkAoNB/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions date-fns owners ask.

  • 01

    Does it automatically know all holidays?

    No, to remain globally deterministic and local, the agent must pass an array of specific holiday dates (e.g., local state holidays) to be skipped during the count.

  • 02

    Does it count the start date?

    No. In accordance with most civil procedural rules (like the Brazilian CPC), the count begins on the first business day after the start date.

  • 03

    Is this secure for client data?

    Absolutely. The engine executes locally within the Vinkius Edge runtime, meaning no deadline inquiries are sent to external APIs.

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