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Financial Data
REST catalog of prices, statements and holder filings
What it is
A keyed REST API that returns market and reference rows as JSON or CSV. The documented catalog runs from symbol lists, quotes and daily or minute prices for US and international names through commodities and OTC securities, then statements, ratios, options, insider and congressional transactions, institutional holdings, fund holdings and economic indicators. Developers who want several of those sets from a single vendor key are the audience. Every request needs an API key, the free subscription allows only a few hundred calls a day, and both the length of history and the number of rows per call differ by endpoint.
At a glance
Worth watchingOur rating, based on popularity, maintenance and how ready it is for real use.
| Best for | Developers |
|---|---|
| Used for | Data source |
| Markets | US equities, Multi-market |
| Learning curve | Easy to start |
| Practical value | Medium practical value |
| Cost | Free, with paid APIs |
| Hardware | No GPU needed |
Financial data API with a free personal-use plan allowing 300 requests per day for symbol lists and selected market data, including historical commodity and OTC prices. [GitHub](https://github.com/fin
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