Massive.com Financial Data

What it does

Connects your AI to the Massive.com financial data API, providing comprehensive real-time and historical market data across multiple asset classes. It allows the LLM to search API endpoints, call them directly, and perform complex data analysis using SQL on in-memory DataFrames.

Tools

• search_endpoints: Find API endpoints and built-in financial functions using natural language.
• get_endpoint_docs: Retrieve detailed parameter documentation for a specific API endpoint.
• call_api: Execute any Massive.com REST API call and optionally store the result as a DataFrame.
• query_data: Run SQLite queries against stored DataFrames for advanced analysis, including CTEs and window functions.

Installation

Install via uv:

uv tool install "mcp_massive @ git+https://github.com/massive-com/mcp_massive@v0.8.8"

Add to claude_desktop_config.json:

{
    "mcpServers": {
        "massive": {
            "command": "mcp_massive",
            "env": {
                "MASSIVE_API_KEY": "your_api_key_here",
                "HOME": "/your/home/directory"
            }
        }
    }
}

Supported hosts

• Claude Desktop
• Claude Code