• VERIFICATION
  • RECONCILIATION
  • CONVERSION
  • HUMAN

How to audit historical transactions with your AI

Connect CurrencyBeacon to your AI client to pull exact exchange rates from any date in the past. Once connected, your agent handles the math and the verification.

Ask AI about this page

Short answer

How can I use AI to audit old foreign currency transactions?

Your AI uses historical exchange rates to recalculate the value of past payments and compares them against your records. This identifies discrepancies caused by rate fluctuations or manual entry errors. You get a clear breakdown of the math used for every audit.

Audit outcomes

Where your results land.

The AI processes your data to produce these specific results.

VERIFICATION

Rate accuracy checks

The AI pulls the specific rate for the transaction date. It confirms if the rate used matches the market reality at that time.

RECONCILIATION

Discrepancy reports

Your agent flags any differences between your recorded costs and the actual historical value. You get a list of items that need a second look.

CONVERSION

Standardized totals

The AI converts all past transactions into a single base currency. This makes it easy to see your total spend in one view.

HUMAN

Manual adjustments

The AI identifies where the math doesn't add up. You decide whether to correct the ledger or investigate the source of the error.

The workflow

What your AI does when the data arrives.

The AI handles the heavy lifting of looking up dates and doing the math.

  1. Fetch historical data

    Your agent looks up the specific exchange rate that was active on the exact day of your transaction.

    get_historical_rates

  2. Recalculate values

    The AI uses the retrieved rate to find the true value of the original amount in your base currency.

    convert_currency

  3. Compare records

    The agent compares the recalculated value against the amount you actually paid or recorded.

    get_historical_rates

  4. Flag errors

    The AI highlights any significant gaps between the historical rate and your ledger entries.

    convert_currency

Try it

Copy these to start.

Use these prompts to kick off your audit.

Starting points

Swap out the bracketed info with your specific transaction details or spreadsheet names.

CurrencyBeacon Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_cbILwfJZbrGDa8ZFD3ko7fhmnYHplDOkfwx6G5dZ/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 — CurrencyBeacon capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "currencybeacon-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_cbILwfJZbrGDa8ZFD3ko7fhmnYHplDOkfwx6G5dZ/mcp"
    }
  }
}
Copy into chat04

  • Audit the transactions in my 'Q3_Expenses' sheet using historical rates.

  • Check if the EUR to USD rate used for the invoice on 2023-05-12 was accurate.

  • Convert all transactions in this CSV to GBP using the rates from last December.

  • Compare my recorded vendor payments in the 'Vendor_Log' against the actual historical exchange rates.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect CurrencyBeacon once, then ask.

Just link the MCP to your client. Your credentials stay encrypted, and you can immediately start asking your agent to pull rates or run conversions.

Connect CurrencyBeacon to your AI

FAQ

How the audit task behaves

  • 01

    Can the AI change my original transaction records?

    No. The AI only reads your data and performs calculations. It cannot write to or modify your spreadsheets or accounting software.

  • 02

    Does the AI provide real-time rates?

    No. This specific task is designed for historical auditing using past rates, not for live trading or current market snapshots.

  • 03

    What happens if a rate is missing for a specific date?

    The AI will tell you it cannot find a rate for that specific date. It won't guess or use a nearby date without your permission.

  • 04

    Can I audit multiple currencies at once?

    Yes. You can ask your agent to convert a whole list of different currency pairs in one go.

  • 05

    Do I need to provide the exchange rate myself?

    No. The AI uses the tools to fetch the rates automatically based on the dates you provide.

  • More questions about CurrencyBeacon? The Connector page answers them. See everything the CurrencyBeacon Connector can do

Connect CurrencyBeacon to Claude, Cursor, ChatGPT & more