OpenCapital

OpenCapital turns SEC filings into clean, structured fundamentals you can actually work with. It indexes US-listed stocks and pulls income statement, balance sheet, cash flow, and segment data straight from XBRL filings, normalized so the numbers line up across companies and quarters, with every figure linking back to its source filing. Screen stocks by financial criteria, compare a metric across peers, and pull quarterly, annual, or trailing-twelve-month history for anything you track. A chart composer turns any view into a shareable chart for articles or social posts. It also runs an MCP server, so AI assistants like Claude can query the same fundamentals inside a chat. Browsing is free for casual use, and paid plans lift the limits for heavier research.