
Connect Countdown Calculator 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. Get exact breakdowns of time remaining for any event.
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.
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.

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.
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.
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.
01-04
4 capabilities in this set.
Part of 4 available through Countdown Calculator.
- 01
Calculate countdown
This capability calculates the specific number of days, hours, and minutes between a starting time and a target time.
- 02
Compare durations
Use this to determine which of two upcoming events will occur first.
- 03
Get time remaining in minutes
This capability returns the total count of minutes remaining between two points in time.
- 04
Validate time inputs
This capability checks if two timestamps are valid and confirms the second timestamp is in the future relative to the first.
Real work
What teams actually run
Deadline Tracking
Ask your agent to calculate exactly how many days are left until a project submission.
Schedule Management
Compare two different meeting times to see which one occurs sooner.
Data Validation
Use the agent to check if a set of timestamps are valid and in the correct chronological order.
Time Conversion
Get the total minute count for a specific window of time for easier data processing.
One connector, every AI
Countdown Calculator 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.
Claude
ChatGPT
Gemini
Perplexity
Grok
Microsoft Copilot
Cursor
VS Code
Windsurf
JetBrains
Cline
LangChain
Vercel AI SDK
Lovable
Z.ai
Raycast
Qwen Code
Kimi Code
Le ChatBuilding your own app? The connector is yours to use.
You don't need a client to put Countdown Calculator 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
892ms average. Fast in production.
Countdown Calculator is checked daily against the live service.
- Fastest day
- 787ms
- Slowest day
- 1030ms
- 14-day trend
- Improving-5%
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 Countdown Calculator, so you can see the experience inside your AI.
It does not authenticate your account with Countdown Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Countdown Calculator Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_CCw2ggyv5TzXQxeRMOy9OS2PPQu38Ey0U1pwuvOr/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Countdown Calculator capabilities are ready to use.
{
"mcpServers": {
"countdown-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_CCw2ggyv5TzXQxeRMOy9OS2PPQu38Ey0U1pwuvOr/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 Countdown Calculator in Claude and other AIs
Who it's for
Built for the work Countdown Calculator owners hand off.
This MCP is built for anyone who needs their AI agent to act as a precise timekeeper.
- 01
Project Managers
Hand off deadline tracking and milestone countdowns to the agent.
- 02
Software Developers
Use the agent to validate timestamps and calculate durations within code workflows.
- 03
Event Coordinators
Let the agent compare multiple event times to manage schedules.
FAQ
Questions Countdown Calculator owners ask.
- 01
What AI clients can use this MCP?
You can use this with any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.
- 02
Do I need to host the MCP myself?
No, Vinkius hosts and manages the MCP for you. You just connect and use it.
- 03
Can it tell me which event happens first?
Yes, the compare_durations capability allows your agent to identify which of two upcoming events occurs sooner.
- 04
How does it handle time validation?
The validate_time_inputs capability checks if your timestamps are valid and ensures the target time is in the future.
- 05
Can I get the time remaining in just minutes?
Yes, the get_time_remaining_in_minutes capability provides the total minute count between two points in time.
- 06
How can I see the breakdown of time remaining?
You can use the calculate_countdown capability to receive a specific breakdown of days, hours, and minutes remaining until your target time.
- 07
Can I compare two different deadlines?
Yes, the compare_durations capability allows you to compare two upcoming events to see which one will happen sooner.
- 08
What happens if the target time is in the past?
The capabilities are designed for countdowns; if the target time is before the reference time, the capabilities will return an error indicating the duration is invalid.
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Connect Countdown Calculator to Claude, Cursor, ChatGPT & more
