AI layer inside Public's brokerage: Alpha research responses, agents that place conditional trades, and an MCP server for Claude, ChatGPT and others.
People whose research and execution sit in the same account and who want an AI interface over both. The AI agents page states agents "are connected directly to live market data, analyzing real-time pricing and volume across stocks, ETFs, options, and crypto" and can run "conditional trades across stocks, options, and crypto". Public MCP connects third-party assistants named on the page as Claude, Perplexity, ChatGPT, Grok and Muse, and the FAQ states MCP access is included with a brokerage account at no extra cost.
Anyone evaluating Alpha itself on published detail: public.com/alpha renders only disclosure text, with no feature description, no coverage statement and no price. Anyone who needs the AI kept away from the order book, because the MCP disclosure states "trades may be executed by your AI agent without your direct input on each transaction" and "Public does not control, supervise, monitor, recommend, or audit any third-party AI agent or AI provider". Anyone building a commercial product on the API, because the API page states "The Public Individual API is for your own personal, non-commercial use" and that international and corporate accounts may face restrictions.
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Cons
Only what appears in its disclosures: "Alpha is an experimental AI research tool from Public Holdings, Inc." The same disclosure states "It may produce inaccurate or inappropriate responses and is not investment research or a recommendation", that all output is provided "as is" without warranties, and "Please independently verify any information before making decisions." No feature list, coverage statement or price for Alpha is published.
The AI agents page states agents "are connected directly to live market data, analyzing real-time pricing and volume across stocks, ETFs, options, and crypto", and the API page describes real-time quotes and execution plus historical equity and options data. The same API page carries a warranty disclaimer: Public makes "no representation or warranty regarding the quality, accuracy, timeliness, and/or completeness of this information."
Open to the Public Investing, Inc. is described as "a registered broker-dealer and member of FINRA & SIPC", with clearing by Apex Clearing Corporation. Public Advisors LLC is "an SEC-registered investment adviser". Jiko Securities, Inc. is a registered broker-dealer and FINRA/SIPC member. KalshiEX LLC is a CFTC-registered Designated Contract Market, and both Public Investing and Apex are CFTC-registered futures commission merchants and NFA members.
The MCP disclosure states "trades may be executed by your AI agent without your direct input on each transaction" and "Trades you submit through the MCP server are deemed authorized by you". It adds that "Public does not control, supervise, monitor, recommend, or audit any third-party AI agent or AI provider." The agents page adds "You are solely responsible for determining the suitability of any strategy" and "All investing involves risk."
Facts sourced from the vendor’s own site, last verified 2026-10-24.
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