Aries is a US brokerage for stocks, ETFs, options, and index options, built for traders who design their own screen and for the AI tools they connect to the same account. This launch opens Aries Infinite, a browser trading desk where charts, order entry, market depth, news, Bloomberg TV, and TradingView go wherever the user places them, assembled widget by widget or by asking an AI. The same account and live data are available on Aries Mobile. Infinite, Mobile, and finance.dev share one API and one data feed. finance.dev publishes Markdown docs, OpenAPI specs, and an llms.txt file so a coding agent can build against the platform, and an MCP server lets a supported AI tool read account information and use supported trading functions. The tool reaches the account only after the customer signs in and approves access. Aries announced a $7 million seed round led by Thomas Peterffy, chair of Interactive Brokers, with Kleiner Perkins, Collision, John Paulson, and 638 of its users participating. Brokerage services are offered through RAM Financial LLC, an SEC-registered broker-dealer and member of FINRA and SIPC, with securities accounts carried by Apex Clearing. Reda Falih is CEO and co-founder.