Bolsai MCP Server

by viniciuslazzariio.github.viniciuslazzari/bolsai-mcpv0.1.4

Brazilian stock market data from B3, CVM and BCB: stock prices, fundamentals, dividends, FIIs and macro indicators (Selic, IPCA, CDI).

1Pythonstdioofficial registry

context tax

queued

security

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cold start

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freshness

Slowing3mo ago

Install Bolsai MCP server

claude mcp add bolsai -e BOLSAI_API_KEY='<bolsai-api-key>' -- uvx bolsai-mcp

{
  "mcpServers": {
    "bolsai": {
      "command": "uvx",
      "args": [
        "bolsai-mcp"
      ],
      "env": {
        "BOLSAI_API_KEY": "<bolsai-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "bolsai": {
      "command": "uvx",
      "args": [
        "bolsai-mcp"
      ],
      "env": {
        "BOLSAI_API_KEY": "<bolsai-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "bolsai": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "bolsai-mcp"
      ],
      "env": {
        "BOLSAI_API_KEY": "<bolsai-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "bolsai": {
      "command": "uvx",
      "args": [
        "bolsai-mcp"
      ],
      "env": {
        "BOLSAI_API_KEY": "<bolsai-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
BOLSAI_API_KEY	yes	yes	Your bolsai API key (free tier available at usebolsai.com)

Freshness

Slowing — last maintenance signal 3mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-07-07 · 3mo ago · GitHub
Latest release
2026-07-07 · 3mo ago · GitHub · v0.1.4
Package published
no data · npm/PyPI
Registry entry updated
2026-07-07 · 3mo ago · official registry · v0.1.4

FAQ

›How do I install the Bolsai MCP server in Claude Code?

Run: claude mcp add bolsai -e BOLSAI_API_KEY='<bolsai-api-key>' -- uvx bolsai-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Bolsai require an API key?

Yes. It expects BOLSAI_API_KEY, of which 1 is a secret.

›Can I use Bolsai as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Bolsai in the official MCP registry?

Yes, as io.github.viniciuslazzari/bolsai-mcp.