Alpaca Clearing

AlpacaDB, Inc. Doing business as Alpaca Clearing is a US-based financial technology firm that provides a suite of developer-focused APIs for stock, options, and cryptocurrency trading, enabling seamless integration of trading applications. Founded in 2015 and headquartered in San Mateo, California, AlpacaDB, Inc. specializes in trading solutions that cater to fintech startups and institutional clients.

In January 2026, the company raised USD 150 million in series D funding led by Drive Capital, with participation from MUFG Innovation Partners, Flat Capital, DRW Venture Capital, Altered Capital, X&, Bank Muscat, Endeavor Catalyst, Portage Ventures, Horizon Ventures, Social Leverage Capital, Unbound, Diagram, Derayah Financial Kraken, Opera Tech Ventures, and Citadel Securities Americas LLC. , as well as a venture debt funding of USD 40 million. The co- founder, Alexey Mastryukov, Hitoshi Harada, Yoshi Yokokawa, and Yuki Hayashi, have a history in entrepreneurship, notably with CEO Alexey Mastryukov leading the company. Alpaca Securities LLC primarily offers a comprehensive suite of developer-first APIs that enable stock, options, and cryptocurrency trading.

Their core product, the Broker API, allows businesses and developers to create fully embedded trading applications, facilitating algorithmic trading and app integration. The API suite supports various investing strategies, providing functionalities such as commission-free stock trading, local currency trading for international clients, and multi-leg options trading for US-listed equities and ETFs. Alpaca's services cater to diverse customers, including fintech startups, digital wallets, broker-dealers, hedge funds, algorithmic traders, and robo-advisors, with a focus on both the United States and Japan. Alpaca generates revenue through transaction structures tied to its API services, including partnerships with fintech firms.

Clients leverage Alpaca's technology to offer trading solutions, enabling users to trade stocks and options without incurring commission fees. Revenue streams also include transaction-based fees for specific trading activities. Furthermore, Alpaca's Local Currency Trading API enhances usability for international clients, and the company supports business-to-business (B2B) relationships by providing services to institutional clients and partners. The company will use the January 2026 funding to expand its brokerage infrastructure capabilities worldwide.