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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use finance-toolkit with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Empower your AI agents to compute complex financial formulas. Instantly calculate ROI, compound interests, and SAC/Price amortization tables local.

Included with plan

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

Complete set · 4 capabilities

The complete finance-toolkit capability set.

These are the exact actions your AI can choose when you ask it to work with finance-toolkit.

Capability set01 / 01

01-04

4 capabilities in this set.

Part of 4 available through finance-toolkit.

  1. 01

    Calculate amortization

    Rate must be periodic decimal (e.g. monthly rate). Type must be "SAC" or "PRICE". Generates a summarized amortization schedule (SAC or PRICE table)

  2. 02

    Calculate compound interest

    G. 0.05). Frequency is times per year interest is compounded (default 1). Calculates compound interest over a period of time

  3. 03

    Calculate roi

    Calculates the Return on Investment (ROI) percentage

  4. 04

    Calculate simple interest

    Rate must be decimal (e.g. 0.05 for 5%). Calculates simple interest over a period of time

Observed, not estimated

813ms average. Fast in production.

finance-toolkit is checked daily against the live service.

Daily averagePeak 992ms
Aug 20Today
Fastest day
717ms
Slowest day
992ms
14-day trend
Slowing+6%

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 finance-toolkit, so you can see the experience inside your AI.

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

finance-toolkit Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_a8BK9rquvt03nS511Zq6D2QDwhccx83foWWpjwe7/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 — finance-toolkit capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "finance-toolkit-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_a8BK9rquvt03nS511Zq6D2QDwhccx83foWWpjwe7/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

FAQ

Questions finance-toolkit owners ask.

  • 01

    Why doesn't the amortization capability return the full 360-month table?

    Returning 360 lines of JSON would severely bloat the LLM's context window, increasing API costs and causing distraction. We return a "Smart Summary" (total paid, total interest, first and last installments) which is perfect for AI decision-making.

  • 02

    Are the compound interest calculations precise enough for banking?

    Yes. The underlying engine relies on JavaScript's high-precision floating-point arithmetic (IEEE 754 standard). Outputs are rounded to 2 decimal places specifically for financial display standards.

  • 03

    Can it compare SAC vs PRICE automatically?

    An AI agent using this MCP can execute the capability twice in parallel—once for SAC and once for PRICE—and instantly write a comparative analysis report for you based on the exact totals.

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