Finviz MCP Server

English | 日本語

A Model Context Protocol (MCP) server that provides comprehensive stock screening and fundamental analysis capabilities using Finviz data.

Features

Stock Screening Tools

• Earnings Screener: Find stocks with upcoming earnings announcements
• Volume Surge Screener: Detect stocks with unusual volume and price movements
• Trend Analysis: Identify uptrend and momentum stocks
• Dividend Growth Screener: Find dividend-paying stocks with growth potential
• ETF Screener: Screen exchange-traded funds
• Premarket/Afterhours Earnings: Track earnings reactions in extended hours

Fundamental Analysis

• Individual stock fundamental data retrieval
• Multiple stock comparison
• Sector and industry performance analysis
• News and sentiment tracking

Technical Analysis

• RSI, Beta, and volatility metrics
• Moving average analysis (SMA 20/50/200)
  • NEW: get_moving_average_position – see how far price sits above/below the 20-, 50-, and 200-day SMAs in a single call
• Relative volume analysis
• 52-week high/low tracking

📄 SEC Filing Features

17. SEC Filing List Retrieval
    Copy

    # All AAPL filings (past 30 days)
    finviz_get_sec_filings(ticker="AAPL", days_back=30)
    
    # Major forms only (10-K, 10-Q, 8-K, etc.)
    finviz_get_major_sec_filings(ticker="AAPL", days_back=90)
    
    # Insider trading related (Form 3, 4, 5, etc.)
    finviz_get_insider_sec_filings(ticker="AAPL", days_back=30)

Advanced Screening Examples

Earnings-Based Strategies

Premarket Earnings Momentum

earnings_premarket_screener(
    earnings_timing="today_before",
    market_cap="large",
    min_price=25,
    min_price_change=2.0,
    include_premarket_data=True
)

Afterhours Earnings Reactions

earnings_afterhours_screener(
    earnings_timing="today_after",
    min_afterhours_change=5.0,
    market_cap="mid",
    include_afterhours_data=True
)

Technical Analysis Strategies

Trend Reversal Candidates

trend_reversion_screener(
    market_cap="large",
    eps_growth_qoq=10.0,
    rsi_max=30,
    sectors=["Technology", "Healthcare"]
)

Strong Uptrend Stocks

uptrend_screener(
    trend_type="strong_uptrend",
    sma_period="20",
    relative_volume=2.0,
    price_change=5.0
)

Value Investment Strategies

Dividend Growth

dividend_growth_screener(
    min_dividend_yield=2.0,
    max_dividend_yield=6.0,
    min_dividend_growth=5.0,
    min_roe=15.0
)

Data Models

StockData

Comprehensive stock information including:

• Basic info (ticker, company, sector, industry)
• Price and volume data
• Technical indicators (RSI, Beta, moving averages)
• Fundamental metrics (P/E, EPS, dividend yield)
• Earnings data (surprises, estimates, growth rates)
• Performance metrics (1w, 1m, YTD)

Screening Results

Structured results with:

• Query parameters used
• List of matching stocks
• Total count and execution time
• Formatted output for easy reading

Error Handling

The server includes comprehensive error handling:

• Input validation for all parameters
• Rate limiting protection
• Network error recovery with retries
• Detailed error messages and logging

Rate Limiting

To respect Finviz's servers:

• Default 1-second delay between requests
• Configurable rate limiting
• Automatic retry with exponential backoff
• Finviz Elite API key support for higher limits

Logging

Configurable logging levels:

• DEBUG: Detailed request/response information
• INFO: General operation information (default)
• WARNING: Non-critical issues
• ERROR: Critical errors

Disclaimer

This tool is for educational and research purposes only. Always conduct your own research before making investment decisions. The authors are not responsible for any financial losses incurred using this software.

Finviz Elite Requirement: This MCP server requires a Finviz Elite subscription for full functionality. Free Finviz accounts have limited access to screening features and data. For comprehensive stock screening capabilities, please subscribe to Finviz Elite at https://elite.finviz.com/elite.ashx

Support

For issues and feature requests, please use the GitHub issue tracker.

Changelog

v1.0.0

• Initial release
• Basic screening tools implementation
• Fundamental data retrieval
• MCP server integration
• Comprehensive error handling and validation

Installation

Prerequisites

• Python 3.11 or higher
• Finviz Elite Subscription (required for full functionality)
• Finviz API key (optional but recommended for higher rate limits)

Important: This MCP server requires a Finviz Elite subscription to access comprehensive screening and data features. For more details about Finviz Elite and subscription options, visit: https://elite.finviz.com/elite.ashx

Setup

1. Clone and setup the project:

# Clone the repository
git clone <repository-url>
cd finviz-mcp-server

# Create virtual environment with Python 3.11
python3.11 -m venv venv

# Activate virtual environment
source venv/bin/activate  # On macOS/Linux
# or
venv\\Scripts\\activate     # On Windows

# Install the package in development mode
pip install -e .

2. Configure environment variables:

# Copy the example environment file
cp .env.example .env

# Edit .env file and add your Finviz API key
FINVIZ_API_KEY=your_actual_api_key_here

3. Test the installation:

# Test if the server starts correctly (press Ctrl+C to stop)
finviz-mcp-server

# You should see the server starting in stdio mode

Configuration

The server can be configured using environment variables:

• FINVIZ_API_KEY: Your Finviz Elite API key (required for Elite features, improves rate limits)
• MCP_SERVER_PORT: Server port (default: 8080)
• LOG_LEVEL: Logging level (default: INFO)
• RATE_LIMIT_REQUESTS_PER_MINUTE: Rate limiting (default: 100)
• EDGAR_USER_AGENT: Required only for the EDGAR API tools (get_edgar_filing_content, get_multiple_edgar_filing_contents, get_edgar_company_filings, get_edgar_company_facts, get_edgar_company_concept). SEC requires a non-empty User-Agent header on every request — set this to something like "Your Name your.email@example.com". The Finviz SEC listing tools (get_sec_filings, get_major_sec_filings, get_insider_sec_filings, get_sec_filing_summary) do not require this variable.

Note: While the API key is technically optional, many advanced screening features require a Finviz Elite subscription and API key to function properly.

Usage

Running the MCP Server

The server runs as a stdio-based MCP server:

# Make sure virtual environment is activated
source venv/bin/activate

# Run the server
finviz-mcp-server

Integration with Claude Desktop

Add the server to your Claude Desktop MCP configuration (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):

{
  "mcpServers": {
    "finviz": {
      "command": "/path/to/your/project/venv/bin/finviz-mcp-server",
      "args": [],
      "cwd": "/path/to/your/project/finviz-mcp-server",
      "env": {
        "FINVIZ_API_KEY": "your_api_key_here",
        "LOG_LEVEL": "INFO",
        "RATE_LIMIT_REQUESTS_PER_MINUTE": "100"
      }
    }
  }
}

Important Configuration Notes:

• Replace /path/to/your/project/ with your actual project path
• Use the absolute path to the finviz-mcp-server executable in your virtual environment
• Set the cwd (current working directory) to your project root
• Replace your_api_key_here with your actual Finviz API key

Alternative: Using .env file If you prefer to use a .env file (recommended for security):

{
  "mcpServers": {
    "finviz": {
      "command": "/path/to/your/project/venv/bin/finviz-mcp-server",
      "args": [],
      "cwd": "/path/to/your/project/finviz-mcp-server"
    }
  }
}

Make sure your .env file contains all required environment variables.

Docker

Build and run the server in a Docker container with SSE transport:

# Build the image
docker build -t finviz-mcp-server .

# Local-only Docker exposure (recommended): bind localhost on the host
# while letting the container listen on all interfaces internally.
docker run -d -p 127.0.0.1:8000:8000 \
  -e MCP_TRANSPORT=sse \
  -e MCP_HOST=0.0.0.0 \
  -e MCP_PORT=8000 \
  -e FINVIZ_API_KEY=your_key \
  finviz-mcp-server

Or with Docker Compose:

services:
  finviz-mcp:
    build: .
    ports:
      # Bind to localhost only on the host. Drop the "127.0.0.1:" prefix
      # only if you intentionally want public exposure — and read the
      # security note below first.
      - "127.0.0.1:8000:8000"
    environment:
      - MCP_TRANSPORT=sse
      - MCP_HOST=0.0.0.0
      - MCP_PORT=8000
      - FINVIZ_API_KEY=${FINVIZ_API_KEY}
    restart: unless-stopped

Environment Variables for Docker:

• MCP_TRANSPORT: Transport mode (stdio, sse, or streamable-http)
• MCP_HOST: Host to bind inside the container (0.0.0.0 is correct here so Docker can publish the port; restrict exposure on the host side via -p 127.0.0.1:8000:8000 instead)
• MCP_PORT: Port to listen on (default: 8000)

Security note: When you run the server directly on the host (without Docker), MCP_HOST defaults to 127.0.0.1 (loopback). Set MCP_HOST=0.0.0.0 only if you have a deliberate reason — public exposure requires DNS-rebinding protection at the application layer, which is tracked as Finding #6 in reviews/REVIEW_TRACKING.md.

MCP Tools

Earnings Screener

# Find stocks with earnings today after market close
earnings_screener(
    earnings_date="today_after",
    market_cap="large",
    min_price=10,
    min_volume=1000000,
    sectors=["Technology", "Healthcare"]
)

Volume Surge Screener

# Find stocks with high volume and price increases
volume_surge_screener(
    market_cap="smallover",
    min_price=10,
    min_relative_volume=1.5,
    min_price_change=2.0,
    sma_filter="above_sma200"
)

Stock Fundamentals

# Get fundamental data for a single stock
get_stock_fundamentals(
    ticker="AAPL",
    data_fields=["pe_ratio", "eps", "dividend_yield", "market_cap"]
)

# Get fundamental data for multiple stocks
get_multiple_stocks_fundamentals(
    tickers=["AAPL", "MSFT", "GOOGL"],
    data_fields=["pe_ratio", "eps", "market_cap"]
)

License

This project is licensed under the MIT License - see the LICENSE file for details.