bcb-br-mcp

Brazilian Central Bank (BCB) - MCP

        

Leia em Português

MCP (Model Context Protocol) server for the Brazilian Central Bank (Banco Central do Brasil, BCB) time series data (SGS/BCB).

Query economic and financial indicators such as Selic (interest rate), IPCA (inflation), exchange rates, GDP, and more, directly from AI assistants like Claude.

If you find this project useful, please consider giving it a star on GitHub. It helps others discover the project!

Capabilities: 8 tools (skills) · 3 resources · 3 prompts — everything an MCP client needs to query the Brazilian Central Bank (SGS/BCB) time-series API.

See it in action

Ask your assistant, in plain Portuguese:

• "Qual a taxa Selic atual?" → bcb_indicadores_atuais
• "Mostre o IPCA mês a mês em 2024." → bcb_serie_valores
• "Qual foi a variação do dólar nos últimos 12 meses?" → bcb_variacao

The answers come live from the Brazilian Central Bank's SGS API — exact figures with provenance, not numbers guessed from training data.

Features

• Historical data - Query time series values by code with date filters
• Latest values - Get the most recent N values of any series
• Metadata - Detailed information about series (frequency, source, etc.)
• Popular series catalog - 150+ economic indicators organized in 12 categories
• Smart search - Find series by keyword (accent-insensitive)
• Current indicators - Latest values for key economic indicators
• Variation calculation - Percentage change between periods with statistics
• Series comparison - Compare multiple series over the same period

Available Tools

| Tool | Description | |------|-------------| | bcb_serie_valores | Query series values by code and date range | | bcb_serie_ultimos | Get the last N values of a series | | bcb_serie_metadados | Get series metadata (name, frequency, source) | | bcb_series_populares | List popular series grouped by category | | bcb_buscar_serie | Search series by name or description (accent-insensitive) | | bcb_indicadores_atuais | Latest values: Selic, IPCA, USD/BRL, IBC-Br | | bcb_variacao | Calculate percentage variation between dates or last N periods | | bcb_comparar | Compare 2 to 5 series over the same period with ranking |

Resources

Reference catalogs the server exposes as MCP resources (read-only contextual data that clients can attach):

| URI | Description | |-----|-------------| | bcb://series/populares | Catalog of 150+ popular BCB economic series, organized by category (JSON) | | bcb://series/categorias | List of available categories in the series catalog (JSON) | | bcb://series/principais | Codes of the most-used indicators — Selic, IPCA, USD/BRL, GDP, etc. (JSON) |

Prompts

Ready-made templates the server provides as MCP prompts:

| Prompt | Description | |--------|-------------| | indicadores_atuais | Query Brazil's key economic indicators (Selic, IPCA, USD/BRL, IBC-Br) | | panorama_economico | Generate a complete overview of the Brazilian economy | | comparar_inflacao | Compare Brazil's main inflation indices (IPCA, IGP-M, INPC) over the last 12 months |

Installation

Via Smithery (recommended)

Visit bcb-br-mcp on Smithery and follow the installation instructions for your MCP client.

Via URL (Claude.ai, Claude Desktop, any MCP client)

Use the HTTP endpoint directly, no installation required:

https://bcb.sidneybissoli.workers.dev

Via npx (Claude Desktop)

Add to your Claude Desktop configuration file:

Windows: %APPDATA%\Claude\claude_desktop_config.json

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "bcb-br": {
      "command": "npx",
      "args": ["-y", "bcb-br-mcp"]
    }
  }
}

Via global install

npm install -g bcb-br-mcp

{
  "mcpServers": {
    "bcb-br": {
      "command": "bcb-br-mcp"
    }
  }
}

Usage Examples

Get the current Selic rate

What is the current Selic interest rate?
→ Uses bcb_indicadores_atuais

IPCA history for 2024

Show me the monthly IPCA for 2024
→ Uses bcb_serie_valores with code 433, dataInicial 2024-01-01, dataFinal 2024-12-31

List inflation indicators

What inflation series are available?
→ Uses bcb_series_populares with category "Inflação"

Search for USD exchange rate series

Search for series related to the dollar
→ Uses bcb_buscar_serie with term "dolar" (works without accents)

Calculate USD/BRL variation

What was the USD/BRL variation over the last 12 months?
→ Uses bcb_variacao with code 1 and periodos 12

Compare IPCA, IGP-M, and INPC

Compare IPCA, IGP-M, and INPC in 2024
→ Uses bcb_comparar with codes [433, 189, 188], dataInicial 2024-01-01, dataFinal 2024-12-31

Series Catalog (150+)

The server includes a catalog of 150+ series organized in 12 categories.

Interest Rates

| Code | Description | |------|-------------| | 11 | Selic rate - monthly accumulated | | 432 | Selic rate - annualized (base 252) | | 1178 | Selic target rate (Copom) | | 12 | CDI daily rate | | 4389 | CDI annualized (base 252) | | 226 | Reference Rate (TR) - daily | | 256 | Long-Term Interest Rate (TJLP) |

Inflation (30+ series)

| Code | Description | |------|-------------| | 433 | IPCA - Monthly change | | 13522 | IPCA - 12-month accumulated | | 7478 | IPCA-15 - Monthly change | | 188 | INPC - Monthly change | | 189 | IGP-M - Monthly change | | 190 | IGP-DI - Monthly change | | 7447 | IGP-10 - Monthly change | | 10841-10850 | IPCA by group (Food, Housing, Transportation, etc.) | | 4449 | IPCA - Administered prices | | 11428 | IPCA - Market prices | | 16121-16122 | IPCA - Core measures |

Exchange Rates (15+ series)

| Code | Description | |------|-------------| | 1 | USD/BRL - US Dollar (sell) | | 10813 | USD/BRL - US Dollar (buy) | | 3698/3697 | USD/BRL PTAX (sell/buy) | | 21619/21620 | EUR/BRL - Euro (sell/buy) | | 21623/21624 | GBP/BRL - British Pound (sell/buy) | | 21621/21622 | JPY/BRL - Japanese Yen (sell/buy) | | 21637/21638 | ARS/BRL - Argentine Peso (sell/buy) | | 21639/21640 | CNY/BRL - Chinese Yuan (sell/buy) |

Economic Activity (25+ series)

| Code | Description | |------|-------------| | 4380 | Monthly GDP (R$ millions) | | 4382 | GDP - 12-month accumulated (R$ millions) | | 4385 | Monthly GDP in USD | | 7324 | Annual GDP in USD | | 24363/24364 | IBC-Br Economic Activity Index (unadjusted/seasonally adjusted) | | 29601-29606 | IBC-Br by sector (Agriculture, Industry, Services) | | 22099 | Quarterly GDP - Rate of change | | 21859 | Industrial production - Monthly change | | 21862 | Installed capacity utilization |

Employment (10+ series)

| Code | Description | |------|-------------| | 24369 | Unemployment rate - PNAD | | 24370 | Labor force participation rate | | 24380 | Average real income | | 24381 | Real income mass | | 28561 | CAGED - Formal job creation |

Fiscal (10+ series)

| Code | Description | |------|-------------| | 4503 | Net public sector debt (% GDP) | | 4513 | General government gross debt (% GDP) | | 4537 | Primary balance (% GDP) | | 4539 | Nominal balance (% GDP) | | 5364 | Central government total revenue |

External Sector (15+ series)

| Code | Description | |------|-------------| | 3546 | International reserves - daily | | 22707 | Trade balance - Monthly | | 22708 | Exports - Monthly | | 22709 | Imports - Monthly | | 22701 | Current account - Balance | | 22846 | Foreign direct investment | | 13690 | Total external debt |

Credit (30+ series)

| Code | Description | |------|-------------| | 20539 | Total credit balance | | 20540/20541 | Credit balance - Individuals/Corporations | | 20714 | Average interest rate - Total | | 20749 | Average rate - Vehicle financing | | 20772 | Average rate - Mortgage | | 20783 | Average spread - Total | | 21082 | Default rate - Total | | 21128/21129 | Default rate - Credit card |

Monetary Aggregates

| Code | Description | |------|-------------| | 1788 | Monetary base | | 27788-27791 | Money supply M1, M2, M3, M4 | | 27815 | Money multiplier |

Savings

| Code | Description | |------|-------------| | 25 | Savings - Monthly yield | | 195 | Savings - Total balance | | 7165 | Savings - Net deposits |

Market Indices

| Code | Description | |------|-------------| | 12466 | IMA-B | | 12467 | IMA-B5 | | 12468 | IMA-B5+ | | 7832 | Ibovespa - Monthly |

Expectations (Focus Survey)

| Code | Description | |------|-------------| | 29033/29034 | IPCA expectation (current/next year) | | 29035/29036 | Selic expectation (current/next year) | | 29037/29038 | GDP expectation (current/next year) | | 29039/29040 | Exchange rate expectation (current/next year) |

Finding Other Series

The SGS database contains over 18,000 time series. To find codes for other series:

1. Visit the BCB SGS Portal
2. Search for the desired series
3. Note the series code
4. Use that code with this server's tools

Technical Details

Robustness

• Timeout: 30 seconds per request (prevents hanging)
• Auto-retry: 3 attempts with exponential backoff (1s, 2s, 4s)
• Error handling: Clear error messages

Smart Search

The bcb_buscar_serie tool normalizes search terms, allowing you to find series even without Portuguese accents:

• "inflacao" → finds "Inflação"
• "cambio" → finds "Câmbio"
• "credito" → finds "Crédito"

Development

Requirements

• Node.js >= 18.0.0

Setup

git clone https://github.com/SidneyBissoli/bcb-br-mcp.git
cd bcb-br-mcp
npm install

Build

npm run build

Local testing (stdio)

npm run dev

Local testing (HTTP worker)

npm run dev:worker

Or use the MCP Inspector:

npx @modelcontextprotocol/inspector npm run dev

BCB API

This server uses the Brazilian Central Bank's public API:

• Base endpoint: https://api.bcb.gov.br/dados/serie/bcdata.sgs.{code}/dados
• Format: JSON
• Authentication: None (public API)
• Documentation: BCB Open Data

Changelog

v1.2.0

• HTTP endpoint via Cloudflare Workers (https://bcb.sidneybissoli.workers.dev)
• Published on Smithery.ai
• Refactored: tool logic extracted to src/tools.ts (shared between stdio and HTTP)

v1.1.0

• New tool bcb_variacao for percentage variation calculation
• New tool bcb_comparar for comparing multiple series
• 30-second timeout on requests
• Auto-retry with exponential backoff (3 attempts)
• Normalized search (accent-insensitive)
• Additional statistics (max, min, average, range)

v1.0.0

• Initial release
• 6 basic tools
• Catalog with 150+ series

Contributing

Contributions are welcome! Please:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/new-feature)
3. Commit your changes (git commit -m 'Add new feature')
4. Push to the branch (git push origin feature/new-feature)
5. Open a Pull Request

License

MIT - see LICENSE for details.

Author

Sidney da Silva Pereira Bissoli

• GitHub: @SidneyBissoli
• Email: sbissoli76@gmail.com

Useful Links

• BCB SGS Portal
• BCB Open Data
• Model Context Protocol
• MCP Registry
• Smithery: bcb-br-mcp
• npm: bcb-br-mcp