MCP For Claude Marketplace
Currency Math Engine

Currency Math Engine MCP Connector for Claude

F

Stop financial calculation errors. Perform strict integer-based currency math for invoices, taxes, and cart totals.

1 tools Official Updated Jun 28, 2026 Official Vinkius Partner
More Details Connect to Claude

When an AI Agent attempts to calculate an invoice discount or sum up a shopping cart, it relies on floating-point arithmetic. This often results in disastrous errors like $0.1 + $0.2 = $0.30000000000000004, causing billing systems to reject the payload. This MCP solves that entirely.

The Superpowers

  • Integer Accuracy: Uses currency.js to perform mathematical operations natively under the hood using integers, preventing floating-point precision loss.
  • Billing Shield: Ensures that all Agent-driven financial payloads (Stripe, Xero, Shopify) are mathematically perfect before transmission.
financial-mathinteger-arithmeticprecision-calculationinvoice-processingtax-calculationdata-integrity

1 tools expose this connector's capabilities to your AI agent.

calculate_currency

Pass the base amount, the operation (add, subtract, multiply, divide, format), and the second value. The engine uses integer-based math to avoid floating-point rounding errors. Performs strict integer-based financial mathematics. Prevents floating-point hallucination when agents calculate invoices, taxes, and cart totals

See how to talk to your AI agent using Currency Math Engine.

Add the shipping cost of 12.50 to the subtotal 89.99.

Currency Result: Addition successful. Result is 102.49.

Multiply the unit price 14.99 by the quantity 3.

Currency Result: Multiplication successful. Result is 44.97.

Calculate the 15% discount on the total amount of 150.00.

Currency Result: Calculation completed.

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

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