Q1 2026 API usage growth accelerated nearly 4x quarter-over-quarter, as AI-driven and agent-based market participation gained momentum

Alpaca, a global leader in brokerage infrastructure APIs, today shared new platform data showing strong growth in API trading as artificial intelligence reshapes how people access and interact with financial markets.

Historically, interacting with financial markets through APIs was largely limited to developers. AI is changing that. As natural-language interfaces and AI-assisted tools lower the technical barrier, more people can translate ideas, logic, and workflows into market actions without needing to write software from scratch. As access becomes easier and more personalized, the importance of the underlying infrastructure only increases, making APIs the critical foundation for this next generation of market interaction.

That shift is already visible across Alpaca’s platform. In Q1 2026, API usage growth accelerated nearly 4x quarter-over-quarter, with monthly growth rates rising from single digits in Q4 2025 to roughly 30% in Q1 2026. This level of acceleration mirrors the adoption curves seen across AI, as a much broader set of users begin accessing financial markets through AI- and agent-driven interactions with APIs.

“APIs once gave developers direct access to financial markets. AI is now broadening that access to a much larger group of users,” said Yoshi Yokokawa, Co-Founder and CEO of Alpaca. “People no longer need to build everything from scratch in code to express trading logic and interact with financial systems. As AI becomes the front door, APIs become even more important as the foundation underneath.”

To support this shift, Alpaca is introducing new tools designed to make it easier to connect AI systems directly to financial markets, including a new command-line interface (CLI) and an enhanced MCP Server. Together, these tools give builders and AI systems more direct and efficient access to Alpaca’s trading infrastructure, reducing friction between expressing a strategy and executing it in the market.

These capabilities support a new class of applications, from automated strategies to AI agents, that can access market data, make decisions, and interact with markets in real time.

Financial market access has evolved from paper to platforms to APIs. AI is now becoming the next interface layer, making the underlying infrastructure more important than ever. Alpaca was built on the belief that APIs would become a core layer of financial services. As AI accelerates automated and agent-driven market participation, Alpaca is positioning itself as the infrastructure behind the next generation of trading.

About Alpaca

Alpaca is a US-headquartered, self-clearing broker-dealer and a global leader in brokerage infrastructure APIs providing access to stocks, ETFs, options, fixed income, and crypto. Alpaca delivers embeddable finance solutions for tokenization, fully paid securities lending, high-yield cash, 24/5 trading, Shariah-compliant investing, and more. Today, Alpaca powers over 10 million brokerage accounts across hundreds of fintechs and institutions in 40+ countries with over $320M in funding. For more information, visit: alpaca.markets

Insights generated by our CLI, MCP server, and connected AI agents are for educational and informational purposes only and should not be taken as investment advice. Alpaca does not recommend any specific securities or investment strategies. Past performance from models does not guarantee future results. Please conduct your own due diligence before making any decisions. All firms mentioned operate independently and are not liable for one another.

Securities brokerage services are provided by Alpaca Securities LLC (dba "Alpaca Clearing"), member FINRA/SIPC and cryptocurrency services are provided by Alpaca Crypto LLC, a FinCEN-registered MSB (NMLS #2160858), wholly-owned subsidiaries of AlpacaDB, Inc.

This is not an offer, solicitation, or advice to buy or sell securities or cryptocurrencies, or to open a brokerage or cryptocurrency account, in any jurisdiction where Alpaca are not registered or licensed, as applicable. All investments involve risk; for more information, please see our Disclosure Library.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260423964388/en/

Alpaca's API usage growth accelerated nearly 4x quarter-over-quarter in Q1 2026 as AI reshapes access to financial markets.