Alpaca

AlpacaDB Inc. is an American financial technology company headquartered in Silicon Valley that provides an API for stock, options, fixed income, and crypto trading for institutions and individual traders to build financial applications. This functionality lets developers process know-your-customer (KYC) verification as well as the trading of stocks, exchange-traded funds (ETFs), options, and cryptocurrencies. Alpaca also offers securities lending, and provides brokerage functionality and market data that comply with regulatory requirements.