> For the complete documentation index, see [llms.txt](https://open-papertrade.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://open-papertrade.gitbook.io/docs/open-papertrade.md).
# Open Papertrade
### About
**Open-Papertrade** is a learning platform for retail trading that sits at the intersection of finance and applied AI. It goes beyond simulated trades: users can run virtual portfolios on **live market data**, backtest strategies over historical windows, follow other traders, receive **behavioral coaching from an LLM** based on their own trade history, and interrogate **SEC filings** through an **agentic RAG pipeline** that cites every claim and declines when the corpus doesn't support an answer.
The project is designed both as a functioning product and as a reference implementation of several real-world AI patterns — provider-agnostic LLM abstractions, hybrid dense/sparse retrieval with cross-encoder reranking, static agent decomposition over tool-use loops, and honest refusal behavior grounded in the eval numbers.
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