trading-api
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VALR: The exchange that wants to be everyone’s plumbing
A Johannesburg crypto exchange won customers at the front door. Its more revealing ambition lies behind the walls: the trading, payments and account infrastructure other financial businesses can build upon.
Poloniex and the price of being early
A musician built an exchange for the coins other people overlooked. Poloniex’s history shows what happens when a marketplace grows faster than the machinery - and the rules - beneath it.
Lime Trading
Lime Trading (Lime Trading Corp., operating as Lime Financial) is a New York-based broker-dealer that gives independent and institutional traders access to institutional-grade trading technology. Born in 2000 inside a quantitative hedge fund as Lime Brokerage, the firm built low-latency infrastructure for high-frequency trading and now offers direct market access, trading APIs, colocation, and proprietary web and mobile platforms for trading U.S. equities, options, and futures. It positions itself in the gap between bulge-bracket banks and retail apps, serving sophisticated traders and developers who want speed, transparency, and quality execution.
Alpaca
Alpaca is a developer-first brokerage infrastructure company providing APIs and a self-clearing custody platform that lets fintechs, banks and trading apps embed access to US stocks, options, crypto and fixed income for customers in 40+ countries. Often called the AWS of finance, it powers more than 300 financial institutions and millions of brokerage accounts globally.