Connects Claude, Cursor, VS Code, Copilot, and ChatGPT to a pattern search engine built on 25 million stock chart embeddings across 10 years of equity data. Eight tools cover pattern retrieval (search, cohort), distribution analysis (explain, analyze), regime context (context, narrative), and portfolio positioning (discover, portfolio). The cohort tool is the centerpiece: it returns empirical forward return distributions for similar historical patterns, with feature importance showing what separated winners from losers. Chain operations via cohort_id handles for sub-second refinements. You'd reach for this when building trading agents that need to answer "what happened historically when a chart looked like this" without hallucinating forecasts. Free tier gives you 200 calls per day.
claude mcp add --transport stdio io.github.grahammccain-chart-library uvx chart-library