Where do I get an API key?
Get a free API key at [usebolsai.com](https://usebolsai.com). It is required to use the server.
Bolsai MCP Server
@viniciuslazzari
基本情報
Bolsai MCP Server について
MCP server for bolsai — Brazilian stock market data (B3, CVM, BCB) for Claude, Cursor, and other AI assistants
Bolsai MCP Server の設定
以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。
{
"mcpServers": {
"bolsai": {
"command": "uvx",
"args": [
"bolsai-mcp"
],
"env": {
"BOLSAI_API_KEY": "sk_your_key_here"
}
}
}
}Bolsai MCP Server のツール
10Current price, daily change, 52w range
27+ indicators: P/L, P/VP, ROE, margins
Side-by-side comparison of up to 5 stocks
Dividend yield, annual summary, payments
Find companies by name or sector
OHLCV prices since 1986 with adjustments
FII fundamentals + distributions
SELIC, IPCA, CDI, USD/BRL
Raw CVM income/balance/cash flow
Filter stocks by metrics
概要
What is Bolsai?
Bolsai provides Brazilian financial market data for AI assistants. It allows querying stock prices, fundamentals, dividends, FIIs, and macro indicators from the Brazilian market (B3, CVM, BCB) directly from Claude.
How to use Bolsai?
Obtain a free API key at usebolsai.com, then install the package with pip install bolsai-mcp. Add the server to Claude Desktop (claude_desktop_config.json) or Claude Code (.mcp.json) with the command uvx bolsai-mcp and set the environment variable BOLSAI_API_KEY to your key.
Key features of Bolsai
- 10+ tools covering quotes, fundamentals, dividends, and FIIs
- 27 financial indicators including P/L, P/VP, ROE, and margins
- Covers 350+ stocks and 400+ FIIs listed on B3
- 40 years of price history since 1986
- 15+ years of fundamentals data since 2010
- Macro indicators: SELIC, IPCA, CDI, USD/BRL
Use cases of Bolsai
- Get a real-time stock quote with daily change and 52-week range
- Compare up to five stocks side-by-side on key metrics
- Search for companies by name or sector on B3
- Screen stocks by criteria like dividend yield above 8%
- Retrieve income statements or balance sheets for a given year
よくある質問
What data sources does Bolsai use?
Data comes from official Brazilian sources: B3 (stock exchange), CVM (securities commission), and BCB (central bank). It is updated daily.
What are the rate limits and pricing tiers?
The free tier allows 200 requests per day for stock quotes, current fundamentals, and company search. Pro (R$ 49/month) permits 10,000 requests/day and unlocks all tools including history, dividends, and macro data.
Does Bolsai require any runtime dependencies?
It is a Python package. Install via pip (or uvx) and requires Python 3. The only required environment variable is `BOLSAI_API_KEY`.
How is authentication handled?
Authentication uses an API key passed as the `BOLSAI_API_KEY` environment variable in the server configuration. The key is issued at usebolsai.com.
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