Polygon.io
Real-time and historical stock, options, forex and crypto market data API
Launched 56 months agopolygon.io
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About Polygon.io
Polygon.io is a market data API for developers working with stock, options, forex and crypto information. It serves real-time and historical tick data for stocks, options chains and more. Data can be pulled over REST or WebSockets in standardized JSON and CSV formats, and usage is described as unlimited. A free tier gives instant access, so developers can start building without a paid plan.
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