Best for

Best broker for algo traders

APIs, websockets, historical data and execution reliability — ranked for automation-first traders.

Algo traders should optimise for API quality (documentation, websocket stability, historical data access and pricing) first, per-order brokerage second. This ranking requires a trading API and rewards trader-grade platforms.

Test with paper/small-size orders through rate limits and downtime handling before committing capital to any API stack.

Top pick

Zerodha

Match score: 91/100

4.6/ 5

✓Trader-grade platforms
✓Trading API available

Visit Zerodha Take the quiz for your own match →

Also shortlisted

#2
Dhan89/100
Trader-grade platforms
#3
Upstox87/100
Trader-grade platforms
#4
Angel One85/100
Trading API available
#5
Groww74/100
Trader-grade platforms

Compare the top 3 side by side →

Ranked by the same transparent scorer as the find-my-broker quiz (editorial rating + persona fit over live fee data) — a starting point, not advice. Verify pricing before opening an account.

FAQs

Which brokers offer trading APIs?

Several discount brokers offer order + data APIs — check each broker's Platforms section for current API availability and pricing.

Are APIs free?

Varies: some are free, others charge monthly for data access. Factor API fees into strategy costs alongside brokerage.

Affiliate disclosure: LetsInvest earns a commission if you open an account via links on this page — at no extra cost to you. Rankings are editorial and never sold. Read how we make money and our methodology.

How we research. Every fee on this site carries a source and a verification date. Data is re-checked against official broker pages; read our editorial methodology. LetsInvest is a research publication, not a financial adviser — see our terms.