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Connect Rail Pass Value Comparator to ChatGPT and Claude

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. Stop overpaying for train travel by comparing pass math.

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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.

How Vinkius works: one connection, every tool, in any AI
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 Rail Pass Value Comparator.

  1. 01

    Apply travel discounts

    Adjusts base ticket prices by applying specific traveler profiles and discounts.

  2. 02

    Compare itinerary costs

    Compares the total cost of a rail pass against the price of individual point-to-point tickets.

  3. 03

    Calculate pass break even

    Finds the exact number of trips required to make a rail pass cheaper than buying single tickets.

  4. 04

    Validate pass eligibility

    Checks if your planned itinerary fits within the specific constraints and windows of a chosen pass.

Real work

What teams actually run

01

Multi-city European Tours

Compare Eurail pass costs against individual high-speed train tickets for a 10-day trip.

02

Budget Optimization

Determine if a pass is worth the investment before committing to a large upfront payment.

03

Itinerary Validation

Confirm that a specific rail pass will actually cover a planned high-speed leg on a certain date.

04

Discount Planning

Calculate savings by applying student or senior discounts to individual ticket prices.

One connector, every AI

Rail Pass Value Comparator 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 Rail Pass Value Comparator 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

886ms average. Fast in production.

Rail Pass Value Comparator is checked daily against the live service.

Daily averagePeak 1679ms
Oct 6Today
Fastest day
811ms
Slowest day
1679ms
14-day trend
Improving-52%

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 Rail Pass Value Comparator, so you can see the experience inside your AI.

It does not authenticate your account with Rail Pass Value Comparator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Rail Pass Value Comparator Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_ONcSWVsaTGN5J6Pxare68ASIyUgvdEt7H3rk3aYT/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 — Rail Pass Value Comparator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "rail-pass-value-comparator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_ONcSWVsaTGN5J6Pxare68ASIyUgvdEt7H3rk3aYT/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 Rail Pass Value Comparator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Rail Pass Value Comparator owners hand off.

This MCP is for anyone managing complex travel itineraries where rail costs are a major budget factor.

  • 01

    Travel Planners

    Hand off itinerary math to the AI to quickly find the cheapest transit options.

  • 02

    Digital Nomads

    Use the capability to decide between monthly passes and local tickets for regional movement.

  • 03

    Budget Travelers

    Let your agent run break-even calculations for multi-stop journeys.

FAQ

Questions Rail Pass Value Comparator owners ask.

  • 01

    Does this MCP include reservation fees?

    Yes, it accounts for mandatory reservation fees required for many rail passes.

  • 02

    Can I use this with Claude or Cursor?

    Yes, you can use this MCP with any MCP-compatible client including Claude, Cursor, and Windsurf.

  • 03

    How does it handle discounts?

    The capability adjusts base ticket prices based on the traveler profiles you provide.

  • 04

    Will it tell me if my pass is valid for my dates?

    Yes, the validation capability checks if your itinerary fits within the pass activation window.

  • 05

    How do I know if a pass is worth it?

    You can use the break-even capability to find the minimum number of trips needed to make the pass cheaper than individual tickets.

  • 06

    How does the capability account for reservation fees?

    The compare_itinerary_costs capability adds mandatory reservation fees for each leg to the total pass cost to ensure an accurate comparison against individual tickets.

  • 07

    Can I check if my high-speed trips are covered by a pass?

    Yes, you can use validate_pass_eligibility to verify if your itinerary adheres to the pass's high-speed trip limits and activation window.

  • 08

    How do I know when a pass becomes worth the money?

    You can use calculate_pass_break_even to determine the minimum number of trips required to make the pass more economical than buying individual tickets.

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