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Dados B3 MCP server

by Val7h · io.github.Val7h/dados-b3

Brazilian stocks (B3): 36 read-only tools for fundamentals, dividends, FIIs, ETFs, BDRs. Free.

🛠 Developer ToolsRemoteDockerv1.9.2
Open in MCP HubGitHub repository ↗Website ↗

How to install Dados B3

Remote (http)

claude mcp add --transport http dados-b3 https://dadosb3.com/mcp/

Or add it to your MCP config (Claude Desktop, Cursor, VS Code):

{
  "mcpServers": {
    "dados-b3": {
      "type": "http",
      "url": "https://dadosb3.com/mcp/"
    }
  }
}

Docker

claude mcp add dados-b3 -- docker run -i --rm ghcr.io/val7h/dados-b3-mcp:1.9.2

Or add it to your MCP config (Claude Desktop, Cursor, VS Code):

{
  "mcpServers": {
    "dados-b3": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/val7h/dados-b3-mcp:1.9.2"
      ]
    }
  }
}

Environment variables:
DADOS_B3_API_KEY – Dados B3 API key. Optional: WEGE3 and the whole methodology are free without one. Create a free key (200 queries/day, no card) or subscribe at https://dadosb3.com.

Replace placeholders in <angle brackets> with your own values. Review what a server can access before you enable it.

Details

Version
1.9.2
Published
2026-11-04
Updated
2026-11-04
Namespace
io.github.Val7h
Source
Val7h/dados-b3-mcp

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