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Connect Major Purchase 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 guessing which expensive items actually offer the best value.

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 Major Purchase Comparator.

  1. 01

    Compare products

    This capability performs the mathematical ranking of multiple products using your custom weights and specific attributes.

  2. 02

    Summarize product profiles

    This capability provides a high-level overview of how diverse the products in your group are.

  3. 03

    Validate weight configuration

    This capability checks your prioritization strategy to ensure your weights are mathematically balanced and sound.

  4. 04

    Calculate tco

    This capability determines the total cost of ownership for a single item over a set period of time.

Real work

What teams actually run

01

Fleet Vehicle Selection

Compare different vehicle models by weighing fuel costs, purchase price, and warranty.

02

IT Hardware Procurement

Rank laptops or servers based on performance specs and total cost of ownership.

03

Home Appliance Upgrades

Decide between appliances by looking at energy costs and feature sets.

04

Software Subscription Audits

Evaluate different service tiers by weighing features against annual costs.

One connector, every AI

Major Purchase 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 Major Purchase 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

951ms average. Fast in production.

Major Purchase Comparator is checked daily against the live service.

Daily averagePeak 1244ms
Oct 4Today
Fastest day
813ms
Slowest day
1244ms
14-day trend
Improving-22%

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 Major Purchase Comparator, so you can see the experience inside your AI.

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

Major Purchase Comparator Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_k4vvE0GfKpkScinB41Kfxnycpuz5O1tuwueq6xUl/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 — Major Purchase Comparator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "major-purchase-comparator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_k4vvE0GfKpkScinB41Kfxnycpuz5O1tuwueq6xUl/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 Major Purchase Comparator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Major Purchase Comparator owners hand off.

This is for anyone making high-stakes purchasing decisions where price is only one part of the equation.

  • 01

    Procurement Officers

    They hand off lists of vendor quotes to the AI to find the best value.

  • 02

    Operations Managers

    They use it to compare the long-term costs of industrial equipment.

  • 03

    Personal Shoppers

    They use it to weigh features against price for high-end consumer electronics.

FAQ

Questions Major Purchase Comparator owners ask.

  • 01

    How does this MCP calculate the best product?

    It uses a weighted scoring system where you assign importance to different attributes like price or warranty to produce a final rank.

  • 02

    Can I use this with Claude or Cursor?

    Yes, this MCP works with any MCP-compatible client including Claude, Cursor, and Windsurf.

  • 03

    What is total cost of ownership?

    It is the initial purchase price plus all running and maintenance costs over a specific period of time.

  • 04

    Do I need to host this myself?

    No, Vinkius hosts and manages the MCP so it is ready to use immediately after you connect.

  • 05

    Can it handle more than just price?

    Yes, it can evaluate price, running costs, delivery speed, warranty, features, and user ratings.

  • 06

    How does the ranking work?

    The system normalizes each attribute against the best performer in its category and applies your assigned weights. For costs, lower values score higher; for features and ratings, higher values score higher.

  • 07

    What is Total Cost of Ownership (TCO)?

    TCO is the sum of the initial purchase price and the accumulated running costs over the expected lifecycle of the product.

  • 08

    Can I use this to compare appliances?

    Yes, it is ideal for any major purchase where you need to balance upfront costs against long-term running costs and features.

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