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Connect CD Return 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. Compare your CD yields against liquid market benchmarks.

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 · 3 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through CD Return Calculator.

  1. 01

    Calculate cd yield

    This capability calculates how much an investment grows based on your specific CD terms and compounding interest.

  2. 02

    Fetch market benchmarks

    This capability pulls current benchmark rates for liquid alternatives like HYSA and Money Market funds based on your interest rate level.

  3. 03

    Generate investment comparison

    This capability creates a high-level comparison between your CD investment and other market alternatives.

Real work

What teams actually run

01

CD Offer Validation

You receive a CD offer and use the MCP to see if the yield is actually better than a standard HYSA.

02

Cash Flow Projection

You calculate exactly how much interest a specific deposit will generate over a set number of months.

03

Liquidity Assessment

You compare the returns of a fixed-term CD against the flexibility of Money Market funds.

04

Portfolio Comparison

You run comparisons to see if shifting funds from savings to a CD makes sense for your target return.

Automate a task

Put CD Return Calculator to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

CD Return 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.

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 CD Return 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

770ms average. Fast in production.

CD Return Calculator is checked daily against the live service.

Daily averagePeak 990ms
Oct 3Today
Fastest day
512ms
Slowest day
990ms
14-day trend
Improving-21%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 3 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 CD Return Calculator, so you can see the experience inside your AI.

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

CD Return Calculator Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_DF1lbiXJTlodZijKx7PHsSZLM5w0Kuv5kqhMjY8v/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 — CD Return Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "cd-return-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_DF1lbiXJTlodZijKx7PHsSZLM5w0Kuv5kqhMjY8v/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 CD Return Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work CD Return Calculator owners hand off.

This MCP is built for anyone managing personal or client savings who needs to validate CD offers against liquid market rates.

  • 01

    Financial Planners

    They use the capability to verify if a client's CD offer is competitive compared to liquid alternatives.

  • 02

    Individual Investors

    They use it to decide whether to lock cash into a CD or keep it in a high-yield savings account.

  • 03

    Accountants

    They use it to project future interest income for tax or cash flow planning.

FAQ

Questions CD Return Calculator owners ask.

  • 01

    What can this MCP calculate?

    It calculates the growth of a CD investment, including total interest earned and the final balance based on compounding interest.

  • 02

    How does it compare CD rates to other accounts?

    The MCP uses market benchmarks to compare your CD's performance against current High-Yield Savings Account (HYSA) and Money Market rates.

  • 03

    Which AI clients can use this MCP?

    You can use this MCP with any compatible client, including Claude, Cursor, Windsurf, and VS Code.

  • 04

    Do I need to host the MCP myself?

    No, Vinkius hosts and manages the MCP for you. You just connect your client and start using the capabilities.

  • 05

    Can I compare a CD to a standard savings account?

    Yes, the capability provides comparisons against liquid market alternatives like HYSA and Money Market funds.

  • 06

    How does the calculator determine my final balance?

    The calculate_cd_yield capability applies your specified compounding frequency (daily, monthly, quarterly, or annually) to the principal amount over the chosen term to calculate total interest and the final balance.

  • 07

    Can I compare my CD rate to other savings options?

    Yes. By using fetch_market_benchmarks, the capability retrieves current benchmark rates for HYSA and Money Market funds, allowing you to see how your CD compares to liquid alternatives.

  • 08

    What does the advantage score represent?

    The advantage score, generated via generate_investment_comparison, represents the numeric margin between your CD's APY and the relevant market benchmark rate.

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