Real-time stock analysis added to Claude Desktop via MCP server

A developer has created an MCP server that adds real-time stock analysis capabilities to Claude Desktop and Claude Code. The tool addresses Claude's limitation of having to guess from training data when asked about current stock metrics like P/E ratios, insider activity, or recent earnings.

Setup and Usage

To install the tool, run this command:

claude mcp add agent-toolbelt \
  -e AGENT_TOOLBELT_KEY=atb_... \
  -- npx -y agent-toolbelt-mcp

Once installed, you can ask Claude for comprehensive stock analysis. For example:

"Give me a full analysis of AAPL — investment thesis, earnings quality, insider activity, and whether it's cheap or expensive."

Claude calls the tools in parallel and synthesizes a complete research note with real numbers and analysis.

Tool Capabilities

The MCP server includes five tools:

• stock_thesis
• earnings_analysis
• insider_signal
• valuation_snapshot
• bear_vs_bull

An example analysis for NVDA produced this output:

• Verdict: Bullish
• One-liner: "Nvidia owns the essential infrastructure for the AI revolution with a defensible software moat, but the valuation demands flawless execution."
• Key Strengths: Dominant ~80%+ data center GPU market share, CUDA moat creates switching costs and customer lock-in, 42 buy / 5 hold / 1 sell analyst consensus
• Valuation: 36.9x P/E — premium but justified by AI tailwinds. Fair value hinges entirely on sustained data center spending through 2029.
• Insider Read: Mixed — two executives bought ~47k shares each (positive), offset by routine selling from others.
• Watch For Next Earnings: Data center revenue growth rate. Deceleration below 30% YoY would signal the boom is maturing.

Pricing and Access

The free tier includes 1,000 calls per month with no credit card required. You can try the valuation snapshot live at elephanttortoise.com without signing up.

The tool works with both Claude Desktop and Claude Code for research purposes.