Lemon.markets is a FinTech company that offers an easy-to-use API for stock trading. The company's API also helps to support creating and executing orders at the stock market and retrieving market data. Additionally, it enables developers to build their own investment and trading tools for the stock market via their Trading API. Co-founded in 2020 by Maximilian Linden and Marcel Katenhusen, the company is headquartered in Berlin, Germany.