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Vinkius

currency.js Connector for AI agents.

1 live capability

Ensure perfect precision for every invoice and shopping cart total.

Live agent request currency.js / Connector

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AI Agent

Why people use currency.js

Currency Math Engine for Accurate Billing Systems

This Connector changes that by handling the math the way banks do. Instead of letting your agent guess the sum, you can have it call the math engine to get a perfect result every time. You get a billing shield that ensures your invoices and cart totals are always correct.

  • Claude
  • ChatGPT
  • Gemini
  • Cursor
  • Visual Studio Code
  • Windsurf

What Vinkius changes

Your agent stops making rounding mistakes on every transaction.

Use it from Claude, ChatGPT, Cursor or another AI client you already have.

One account · 6,100+ Connectors

  1. Real-world use case 01

    Shopping Cart Totals

    A customer adds 3 items at $14.

  2. Real-world use case 02

    Tax Calculation

    A business owner asks for a 15% discount on a $150.

  3. Real-world use case 03

    Invoice Generation

    An agent summarizes a complex shipping and tax list.

Complete set · 1capability

The complete currency.js capability set.

These are the exact actions your AI can choose when you ask it to work with currency.js.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through currency.js.

  1. 01 Capability

    Calculate currency

    The Currency Math Engine uses this capability to perform addition, subtraction, multiplication, or division on currency amounts. It uses integer-based math to ensure your totals are always accurate to the last cent.

Set up in minutes

One URL. Then ask currency.js to work.

Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use currency.js from the conversation.

Choose your client

Live preview
Advanced clients IDE · CLI

Claude · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP
https://edge.vinkius.com/vk_preview_5NKbd1XQQAcf3ixbQFgDqA1EW0unjlSmIiGFqbYs/mcp
  1. Step 01

    Open Connectors

    In Claude Web or Claude Desktop, open Settings and choose Connectors.

  2. Step 02

    Add the URL

    Choose Add custom connector, name it currency.js, and paste the URL above.

  3. Step 03

    Turn it on in chat

    Select +, open Connectors, and enable currency.js for the conversation.

Where the request belongs

Work currency.js can move forward.

Built around the request

E-commerce owners and fintech developers who can't afford to be off by a single cent. It's for anyone building automated billing, tax, or checkout flows.

01

Fintech Developer

Building a payment gateway integration that requires 100% accuracy for every transaction.

02

E-commerce Manager

Automating price updates and discount codes across multiple stores without manual checks.

03

Accounting Specialist

Generating accurate tax reports and invoices from messy raw data.

Bring your own AI

Change the model, client or framework. Keep currency.js connected.

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Before you connect

Questions about currency.js.

The practical details behind the request, access and result.

Can the Currency Math Engine help with my store's checkout totals?

Yes, it ensures your shopping cart totals are always mathematically perfect. It handles the math the way banks do, preventing the tiny rounding errors that often cause payment failures.

How does the Currency Math Engine prevent rounding errors in my invoices?

It uses integer-based math to perform all calculations. By converting currency values to integers before doing the math, it eliminates the floating-point glitches that lead to incorrect invoice totals.

Is the Currency Math Engine good for calculating sales tax?

It's perfect for tax calculations. It can handle percentages and complex math to ensure your tax amounts are accurate to the cent, which is critical for compliance and customer trust.

Can I use the Currency Math Engine for multi-currency conversions?

Yes, it's designed to handle currency math accurately. It helps maintain data integrity when your agent is summing up costs across different currencies or different types of fees.

Will the Currency Math Engine work with my existing payment gateway?

It works as a backend capability for your agent. Your agent can use it to calculate the correct totals before sending the final, perfect payload to your payment gateway like Stripe or Xero.

Why should I use the Currency Math Engine instead of just asking the AI to do math?

Standard AI math relies on floating-point arithmetic, which often produces tiny errors like $0.30000000000000004. This engine provides a dedicated math path that guarantees 100% accuracy for financial data.

Why can't the LLM do this math?

LLMs predict the next logical token; they don't use internal ALU processors for math. This leads to hallucinations in complex decimal arithmetic.

Does it support different currencies?

Yes, it handles any currency format seamlessly by focusing strictly on the numerical value representation.

What operations are supported?

Addition, subtraction, multiplication, and division.

One connection away

Give your agent a direct line to currency.js.

Connect currency.js once. Keep it beside 6,100+ managed Connectors when the next task needs more.

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