Non-developer builds GreekSoup, an open-source AI equity research desk, mostly by prompting Claude
Practical-Rise-1188 · reddit · 2026-09-17
The author open-sourced GreekSoup, the product of three years of AI investing experiments: a local research desk combining broker accounts, watchlists, 13F filings, the options tape, short interest, congressional trades, macro series, commodities and personal notes — all reading public data with no API key. Adding a stock automatically connects it to earnings, filings and financials.
The agent layer runs on your existing Claude/OpenAI subscription or any lab's API key, answering questions about your own book using the current screen's numbers and notes. The author is not a developer; most of the desk was built by describing requirements to Claude in plain sentences. Six brokers are supported, and the agent can build support for others from broker docs. Fully free and open source on GitHub/GitLab.
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