EODHD APIs is a financial data API platform that provides developers and financial professionals with programmatic access to historical and real-time market data across global exchanges. The platform delivers extensive financial datasets through RESTful APIs and WebSocket connections, covering equities, ETFs, mutual funds, indices, options, forex, cryptocurrencies, and commodities. EODHD supports software teams building financial products, quantitative analysts running backtests, enterprises ingesting bulk market data, and researchers studying market behavior. EODHD APIs is used across several core workflows in financial software development. Application builders use it to power stock screeners, portfolio trackers, charting tools, and trading dashboards. Quantitative teams use long-range historical data (30+ years) to backtest strategies and validate models. Data science and AI teams use structured market and fundamental datasets to train machine learning models and large language models. Financial institutions integrate the APIs into internal systems for monitoring, reporting, and compliance-related processes. Key capabilities include: - Market data coverage: Access to 150,000+ tickers across 60+ global exchanges, including end-of-day history, intraday bars (1-minute to hourly), and real-time quotes via WebSocket (sub-50 ms latency for US stocks, forex, and crypto). - Fundamental data: Company financials (balance sheet, income statement, cash flow), ESG ratings, insider transactions (SEC Form 4), and institutional holdings for stocks, ETFs, and mutual funds. - Alternative data: Financial news aggregation with sentiment analysis, economic calendar events, macro indicators, and options chains with Greeks calculations. - Developer tools: SDKs for Python, R, C#/.NET, Java, and PHP/Laravel, plus integrations for Excel, Power BI, Postman, and MCP (Model Context Protocol) for AI-agent workflows. - Data access and evaluation: Browser-based API testing, demo API keys for evaluation, and tiered subscription plans including a free tier for prototyping. The platform maintains backwards compatibility across API updates to reduce version migration work. Reported data issues can be reviewed and corrected through a support workflow. EODHD operates in the financial data API category alongside providers such as Alpha Vantage, Polygon, Quandl, IEX, Tiingo, and Finnhub, with a pricing approach that bundles multiple data types under single subscriptions rather than charging separately per dataset.