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Connect Unit Fx 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 math and live currency rates without the guesswork.

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 Math.js, Frankfurter & Binance.

  1. 01

    Batch convert

    This capability handles multiple physical unit conversions in one go. You pass the value, source unit, and target unit to get a single deterministic pass of results.

  2. 02

    Convert unit

    This capability performs exact mathematical conversions for length, mass, volume, temperature, and speed. It uses mathjs to ensure accuracy and will return an error if you try to convert incompatible units like kilograms to kilometers.

  3. 03

    Get rate

    This capability retrieves the foreign exchange rate between two ISO currency codes. It pulls from Frankfurter for central bank reference rates or Binance for live market prices.

Real work

What teams actually run

01

Global Logistics

Convert shipment weights from kilograms to pounds using precise math.

02

Currency Arbitrage Analysis

Compare central bank reference rates against live Binance market prices.

03

Scientific Data Processing

Batch convert temperature or pressure readings across different scales.

04

E-commerce Localization

Convert product dimensions and prices into local units and currencies for different regions.

Automate a task

Put Math.js, Frankfurter & Binance 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

Math.js, Frankfurter & Binance 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 Math.js, Frankfurter & Binance 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

2607ms average. Acceptable in production.

Math.js, Frankfurter & Binance is checked daily against the live service.

Daily averagePeak 3027ms
Oct 3Today
Fastest day
2274ms
Slowest day
3027ms
14-day trend
Improving-13%

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 Math.js, Frankfurter & Binance, so you can see the experience inside your AI.

It does not authenticate your account with Math.js, Frankfurter & Binance. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Math.js, Frankfurter & Binance Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_476bw3fXfTKTHQA1s2rVLxiUwqeHoQaHaBAIV6p5/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 — Math.js, Frankfurter & Binance capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "unit-fx-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_476bw3fXfTKTHQA1s2rVLxiUwqeHoQaHaBAIV6p5/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 Math.js, Frankfurter & Binance in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Math.js, Frankfurter & Binance owners hand off.

This MCP is for anyone who needs to move data between different measurement systems or currencies without trusting an LLM to do the math.

  • 01

    Financial Analysts

    They hand off currency conversion tasks to the agent to ensure they use current market rates instead of training data.

  • 02

    Engineers

    They use the capability to convert technical specifications between metric and imperial systems accurately.

  • 03

    Data Scientists

    They use batch conversion to clean and standardize units across large datasets.

FAQ

Questions Math.js, Frankfurter & Binance owners ask.

  • 01

    How does this MCP prevent math errors?

    It uses the mathjs engine to perform all physical unit conversions, ensuring the math is deterministic rather than based on LLM probability.

  • 02

    Where do the currency rates come from?

    The MCP pulls from two sources: the Frankfurter API for official central bank reference rates and Binance for live market prices.

  • 03

    Is there a limit to how many currency conversions I can do?

    The MCP uses an in-memory V8 Map to cache FX rates for one hour, allowing for fast, large-scale batch conversions without hitting rate limits.

  • 04

    Can it convert incompatible units?

    No. If you try to convert something impossible, like kilograms to meters, the capability returns an error instead of letting the AI guess.

  • 05

    Which AI clients can use this?

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

  • 06

    How often are currency rates updated?

    Reference rates are cached for 1 hour; live Binance market rates for 5 minutes.

  • 07

    What physical units are supported?

    Length, mass, volume, temperature, and speed are fully supported via mathjs.

  • 08

    Can it batch convert an array of data?

    Yes, the batch processor can handle large JSON arrays instantly.

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