[ ALGORITHMIC_TRADING ]

Broker API Candlestick CLI

2025Finance & Capital MarketsCapability

What it is

A command-line tool for pulling candlestick data from a broker API.

Client work is shown without identifying imagery

[ THE_PROBLEM ]

Why this existed

Systematic trading research needs scriptable access to your own broker data. Exporting CSVs from a web terminal by hand is not a research process.

[ WHAT_WE_BUILT ]

What we built

Authenticated login flow against the broker API and a CLI that fetches and renders candlestick data — the unglamorous plumbing every systematic strategy needs before any strategy exists.

Authenticated login flow against the broker API
Candlestick data fetch and render from the command line
Scriptable output suitable for downstream analysis

[ HOW_IT_IS_USED ]

How a company uses it

A trading desk or quant researcher gets scriptable access to their own broker data instead of exporting from a web terminal.

Built with

PythonKite Connect

[ COMMON_QUESTIONS ]

Questions clients ask

Why a CLI rather than an application?

Because it composes. A command-line tool pipes into whatever analysis you are already running, gets scheduled by cron, and gets called from a script. An application would have to reimplement all of that badly.

Is this a trading system?

No, and it is worth being precise. This is data access — the plumbing every strategy needs before there is a strategy. Order execution is a different problem with materially different reliability requirements.

Can it be extended to other brokers?

Yes, though each broker API differs enough that it is per-integration work rather than a configuration change. Authentication flows in particular vary widely.

[ RELATED_WORK ]