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Connect Return Window Calendar to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Never miss a deadline to return a product.

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

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 4 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-04

4 capabilities in this set.

Part of 4 available through Return Window Calendar.

  1. 01

    Check return eligibility

    This capability checks if an item is still eligible for a return based on your current data.

  2. 02

    Get urgency status

    This capability tells you how much time is left before your return window closes.

  3. 03

    Summarize return timeline

    This capability provides a full breakdown of the timeline from purchase to the final deadline.

  4. 04

    Calculate return deadline

    This capability finds the absolute last day you can return an item.

Real work

What teams actually run

01

Managing Shipping Delays

The AI adjusts your return deadline based on how long a package took to arrive.

02

Checking Eligibility

You ask your agent if a specific item is still eligible for a refund.

03

Tracking Multiple Orders

Your agent maintains a timeline for several different purchases at once.

04

Urgency Alerts

Your agent identifies which returns need to be processed immediately.

One connector, every AI

Return Window Calendar works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Return Window Calendar to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

940ms average. Fast in production.

Return Window Calendar is checked daily against the live service.

Daily averagePeak 1388ms
Oct 5Today
Fastest day
705ms
Slowest day
1388ms
14-day trend
Improving-33%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 4 capabilities arrive 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 Return Window Calendar, so you can see the experience inside your AI.

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

Return Window Calendar Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_b0eKsm2xQuQfs5txiitoxHBeOJzx7y7etobeNRPS/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 — Return Window Calendar capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "return-window-calendar-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_b0eKsm2xQuQfs5txiitoxHBeOJzx7y7etobeNRPS/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

Guided setup for Claude? Set up Return Window Calendar in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Return Window Calendar owners hand off.

This is for anyone managing multiple retail orders or high-volume consumer purchases.

  • 01

    Personal Shoppers

    They hand off order details to the AI to keep track of multiple return windows.

  • 02

    E-commerce Managers

    They use it to track product lifecycles and return constraints.

  • 03

    Household Managers

    They use the AI to ensure family purchases are returned on time.

FAQ

Questions Return Window Calendar owners ask.

  • 01

    How does this MCP handle shipping delays?

    It reconciles purchase dates with shipping latency to find the actual expiration date.

  • 02

    Which AI clients can use this MCP?

    You can use this with any MCP-compatible client like Claude, Cursor, or Windsurf.

  • 03

    Can I check if a return is still valid?

    Yes, the check_return_eligibility capability verifies if an item is still eligible for return.

  • 04

    Does it work with any retailer?

    The MCP works by applying the specific retailer policy you provide to the purchase data.

  • 05

    How do I know if a return is urgent?

    The get_urgency_status capability provides a status indicating if your window is approaching or critical.

  • 06

    How is the return deadline calculated?

    The deadline is calculated by adding the shipping duration to the purchase date to find the delivery date, and then adding the retailer's return policy days to that delivery date.

  • 07

    What do I need to check my return eligibility?

    To use check_return_eligibility, you need the calculated deadline date and confirmation of whether you have a valid receipt.

  • 08

    Can I see how much time is left before my return window closes?

    Yes, you can use get_urgency_status to receive a status like 'Safe', 'Approaching', 'Critical', or 'Expired' based on your deadline.

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