Stock Market API for Developers

Stock Market API for Developers

Power your fintech apps and financial models with a production-ready stock market API. Access real-time quotes, historical prices, and company fundamentals via REST API, Python, Excel, or MCP.

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{
  "trading_symbol": "AAPL",
  "registrant_name": "Apple Inc.",
  "time": "2025-09-02 15:56:00",
  "price": 238.08,
  "change": 8.36,
  "percentage_change": 3.64
}

#### Everything You Need to Power Your Platform

Stop stitching together multiple vendors. From intraday pricing to institutional trading data, get all your market data through one API.

Real-Time Quotes

Our API delivers real-time quotes for US and international stocks, ETFs, indices, forex, and crypto.

Historical Market Data

Perfect for backtesting strategies. Get historical stock price data down to the minute.

Company Fundamentals

Access detailed balance sheets, income statements, cash flows, and key valuation metrics for global companies.

Institutional Insights

Follow the smart money. Analyze insider transactions, institutional, fund, or ETF holdings.

International Coverage

Track equities beyond the NYSE and NASDAQ across major European and Asian markets.

Built for LLMs & AI

Query our financial data engine directly from ChatGPT, Claude, or custom LLMs via an MCP server.

#### Native Python SDK

Get up and running in minutes. Query real-time prices and historical market data in three lines of code. Our Python package handles rate limits, retries, and response parsing out of the box.

from fdnpy import FinancialDataClient \# Replace 'YOUR\_API\_KEY' with your actual key client = FinancialDataClient(api\_key='YOUR\_API\_KEY') \# Get stock prices for Microsoft prices = client.get\_stock\_prices(identifier='MSFT') print(prices\[0\], end='\\n\\n') \# Get Microsoft's balance sheet balance\_sheet = client.get\_balance\_sheet\_statements(identifier='MSFT', period='year') print(balance\_sheet\[0\]) #### MCP Server

Connect Claude to our financial data feed using only an MCP server URL. No custom API wrappers, middleware, or schema mapping required.

User"What was Microsoft's net income in 2025?"

FinancialDatagetIncomeStatements

▼

Input: {"identifier": "MSFT", "period": "year"}

Output: {..., "net\_income": 101832000000.0, ...}

Claude

Microsoft's net income for 2025 was $101,832,000,000.

#### Simple, Transparent Pricing

Whether you are a solo developer or an enterprise, we have a financial data plan that fits your budget.

#### Premium

Perfect for backtesting and personal projects.

$69/mo

• ✔️ End-of-day stock prices
• ✔️ 10+ years of historical data
• ✔️ Financial statements
• ✔️ 30 API calls per second
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Commercial Use

#### Enterprise

Built for production apps and custom AI workflows.

$299/mo

• ✔️ Live stock quotes
• ✔️ Institutional holdings
• ✔️ MCP server
• ✔️ 50 API calls per second