• DATA
  • ANALYSIS
  • REPORTS
  • HUMAN

How to fetch official daily US Dollar PTAX rates with your AI

Connect the BCB Câmbio MCP to your agent. Once connected, your AI can pull the specific daily reference rates used in the Brazilian market.

Ask AI about this page

Short answer

How can I get the daily US Dollar PTAX rate with my AI?

Your agent uses the get_cotacao_dolar tool to pull the official rate directly from the Central Bank of Brazil. You can then use that data for conversions, reports, or spreadsheets. Here is how the process works.

The outcomes.

Where the data lands.

The AI handles the data retrieval so you can focus on the math.

DATA

Direct rate retrieval

The AI calls the source to get the specific PTAX value you need. You get the exact number used by the Brazilian financial market.

ANALYSIS

Financial calculations

The agent uses the rate to calculate spreads or currency conversions. You get the results immediately in your chat.

REPORTS

Document generation

Your AI can write the fetched rate into a summary, an email, or a structured table. This makes updating your records easy.

HUMAN

Final verification

You review the rate and the math provided by the agent. You stay in control of all final financial decisions.

The workflow

What your AI does when the rate is requested.

The AI acts as the bridge between the Central Bank's data and your specific task.

  1. Fetch the rate

    The AI identifies the currency and date you need to pull the official PTAX value.

    get_cotacao_dolar

  2. Validate the data

    The agent checks the returned value to ensure it matches the expected PTAX format.

    get_cotacao_dolar

  3. Process the value

    The AI applies the rate to your request, like calculating a total in Reais.

    get_cotacao_dolar

  4. Deliver the result

    The agent presents the final number or the completed calculation in your chat.

    get_cotacao_dolar

Try it

Copy these to start.

Use these prompts to trigger the data retrieval.

Starting points

Swap the bracketed info for your specific needs, like a different date or a different currency.

Banco Central do Brasil Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_RiT5GnOKTdYj3KwPkQO1JHgJVdX6zgX2wHUg2JhE/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 — Banco Central do Brasil capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "bcb-cambio-dolar-ptax-euro-e-150-moedas-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_RiT5GnOKTdYj3KwPkQO1JHgJVdX6zgX2wHUg2JhE/mcp"
    }
  }
}
Copy into chat04

  • Get the US Dollar PTAX rate for today.

  • What was the PTAX rate for the Euro on January 15th?

  • Calculate my invoice total using today's US Dollar PTAX rate.

  • Compare today's PTAX rate with the rate from last Friday.

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

Start here

Connect BCB Câmbio once, then ask.

Click the link to connect the MCP to your client. Your credentials stay encrypted and the connection is ready to use.

Connect BCB Câmbio to your AI

FAQ

How this task behaves.

  • 01

    Can the AI change the official PTAX rate?

    No. The AI only reads the official rates provided by the Central Bank of Brazil.

  • 02

    Does the AI handle actual money transfers?

    No. This MCP is for retrieving exchange rate data only. It cannot execute financial transactions.

  • 03

    Can I get rates for currencies other than USD?

    Yes. The tool provides access to Euro and over 150 other currencies.

  • 04

    Can the AI create a spreadsheet with these rates?

    Yes, the AI can format the retrieved data into a table or a CSV structure for you to copy.

  • 05

    Can the AI delete my existing financial records?

    No. The AI only has permission to read data from the BCB. It cannot access or delete your local files or databases.

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

Connect Banco Central do Brasil to Claude, Cursor, ChatGPT & more