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Clear Street API
US equity reference data with broker order entry
What it is
A brokerage REST API for US stocks and options, using a bearer key from an opened account. Instrument calls search listings and return tradability, margin and borrow flags, option chains, corporate events, analyst consensus, fundamentals and financial statements, while market-data calls return the latest quote and daily open, high, low and volume, and a news route sits beside them. Developers and desks who already hold an account can research a symbol and then send orders from the same key. Market data is available once the account is active, but there is no anonymous tier, and order entry covers stocks and options only.
At a glance
Worth watchingOur rating, based on popularity, maintenance and how ready it is for real use.
| Best for | Professional quants |
|---|---|
| Used for | Data source, Live trading |
| Markets | US equities |
| Learning curve | Moderate learning curve |
| Practical value | Medium practical value |
| Cost | Free, with paid APIs |
| Hardware | No GPU needed |
REST API for US equities & options: reference & fundamental data, multi-year financial statements, corporate events, analyst consensus, a screener, and order execution.