Dados B3 vs Hub Equity MCP

In-depth architectural comparison of the Dados B3 and Hub Equity MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Dados B3 when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Dados B3 Details

Choose Hub Equity MCP when:

• You need dedicated capabilities in the Finance & Fintech domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Freemium).
• You have access to required keys: HUBEQUITY_API_KEY, HUBEQUITY_API_URL.
• Primary tools included: Normalized SEC and ESEF XBRL hub-code vocabulary, Source-linked financial facts and filing provenance, Entity search, histories, segments, comparisons, and screening.

Explore Hub Equity MCP Details

Feature & Specification Comparison

Specification	Dados B3 Developer Tools	Hub Equity MCP Finance & Fintech
Summary	Brazilian stock market (B3) fundamentals: ROIC, ROE, margins, multiples. Public methodology.	Standardized, restatement-aware SEC + European (ESEF) XBRL fundamentals, served to your agent.
Category & Scope	Developer Tools	Finance & Fintech
Quality signal

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "dados-b3": {
      "command": "npx",
      "args": [
        "-y",
        "dados-b3"
      ]
    }
  }
}

{
  "mcpServers": {
    "hub-equity-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/inspector"
      ],
      "env": {
        "HUBEQUITY_API_KEY": "YOUR_HUBEQUITY_API_KEY_HERE",
        "HUBEQUITY_API_URL": "YOUR_HUBEQUITY_API_URL_HERE"
      }
    }
  }
}

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