Alternatives to Tiingo

Polygon.io

Financial Data Feeds

Both Tiingo and Polygon.io provide normalized financial market data APIs covering equities, options, and crypto with real-time and historical access. Tiingo emphasizes proprietary error-checking and news feeds, while Polygon.io highlights direct exchange connectivity and institutional-grade data. They serve overlapping use cases for developers building trading and analytics applications but differ in data sourcing and feature emphasis.

Nasdaq Data Link

Financial Data Feeds

A data platform serving investment professionals with financial, economic, and alternative datasets.

Twelve Data

Financial Data Feeds

Financial data APIs providing real-time and historical market data for stocks, forex, crypto, ETFs, and commodities with unified APIs, WebSocket, and SDKs.

Marketstack

Financial Data Feeds

REST API delivering real-time, intraday, and historical stock market data for 30,000+ global tickers with EDGAR filings access, commodity prices, and 15+ years of historical data in lightweight JSON format.

Intrinio

Financial Data Feeds

Normalized financial data API for AI-powered finance. Real-time stock prices, options, fundamentals, and estimates with LLM-optimized feeds and no exchange fees.

Finnhub

Financial Data Feeds

Real-time RESTful APIs and Websocket for stocks, currencies, and crypto with institutional-grade fundamental and alternative data.

EOD Historical Data

Financial Data Feeds

Developer-first financial data API platform providing real-time, historical, and end-of-day market data for stocks, ETFs, funds, and forex with 45+ APIs, SDKs, and AI integrations across 60+ exchanges.

API3

Financial Data Feeds

Decentralized API services and first-party oracle protocol connecting blockchain apps to web APIs.

Xignite

Financial Data Feeds

Cloud-based financial market data provider offering tailor-made data products with flexible delivery formats and pricing. Serves banks, asset managers, fintechs, and financial institutions with real-time and historical data across equities, fixed income, derivatives, and more.

Kaiko

Financial Data Feeds

The leading provider of cryptocurrency market data, analytics, and indices, offering institutional-grade, regulatory-compliant solutions for institutional investors, financial services firms, and regulators.