// FINANCE
Polygon
Historical stock market data
Polygon is a free public Finance API that requires apiKey authentication. It supports HTTPS.
// FACTS
- Category
- Finance
- Authentication
- apiKey
- HTTPS
- yes
- CORS
- unknown
- Endpoint
- polygon.io
- Cost
- Free
// FREQUENTLY ASKED
What is Polygon?
Polygon is a free public API in the Finance category. Historical stock market data
Does Polygon require authentication?
Yes — Polygon requires apiKey authentication to make requests.
Is Polygon free?
Yes. Polygon is listed in our directory of free public APIs and is free to use. Check the official site for any rate limits or paid tier limitations.
Does Polygon support HTTPS?
Yes, Polygon supports HTTPS encrypted requests.