MarketMind MCP

A financial research MCP server built with FastMCP, Pydantic v2, and LangGraph.

Exposes 4 tools over the Model Context Protocol that any MCP-compatible client (Claude Desktop, Cursor, etc.) can call. Includes a LangGraph workflow that chains the tools into a multi-step research pipeline.

Tools

Tool	Description
get_stock_quote	Latest price, change %, and volume for a ticker
get_historical_prices	OHLC price history for a given period
compute_rsi	RSI indicator with overbought/oversold classification
generate_research_report	Streams an AI analyst report token-by-token via MCP progress notifications

Prerequisites

• Python 3.11+
• uv
• OpenAI API key (for generate_research_report)

Setup

git clone https://github.com/your-username/marketmind-mcp
cd marketmind-mcp
uv sync
cp .env.example .env
# Add your OPENAI_API_KEY to .env

Usage

Run as MCP server (connect to Claude Desktop)

uv run marketmind

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "marketmind": {
      "command": "uv",
      "args": ["run", "marketmind"],
      "cwd": "/path/to/marketmind-mcp"
    }
  }
}

Once connected, Claude Desktop can call all 4 tools. generate_research_report streams the analyst report token-by-token via MCP progress notifications — the report appears in real-time as it is written.

Run the LangGraph workflow directly (CLI)

uv run python -m marketmind.workflow NVDA

Example output:

Researching NVDA...

[market_node]  NVDA  $924.18  (+2.51%)
[market_node]  RSI(14): 55.61  → neutral
[news_node]    5 headlines fetched

========================================================
  RESEARCH REPORT: NVDA
  Generated: 2026-03-16 05:57 UTC
========================================================

Summary
  NVIDIA continues to exhibit strong bullish momentum, driven by accelerating
  data centre GPU demand and positive earnings revisions.

Price Action
  NVDA is up 2.51% today at $924.18, breaking above the 20-day moving average
  on above-average volume.

Momentum
  RSI(14) at 55.6 signals healthy momentum without approaching overbought territory.

News Context
  Recent headlines highlight record Blackwell GPU shipments and expanded
  hyperscaler contracts.

Outlook: BULLISH

For informational purposes only. Not financial advice.

Inspect tools interactively

uv run fastmcp inspect src/marketmind/server.py

Opens the FastMCP inspector in your browser — lets you call any tool manually and inspect inputs, outputs, and schemas.

Run Tests

uv run pytest -v

45 tests covering business correctness, input security, and workflow resilience.

Stack

Layer	Technology
MCP server	fastmcp 3.x
Schema validation	pydantic v2
Orchestration	langgraph
LLM	openai (GPT-4o)
Market data	yfinance
News	Yahoo Finance RSS via feedparser + httpx