StockFit API

StockFit API gives developers, quants, and research platforms direct access to SEC filing data without the usual tradeoffs. Most financial APIs force you to choose between cheap tiers with accuracy issues or enterprise contracts that drain a startup's budget. StockFit fills the gap: fundamentals, ownership, ETF/MF exposure, insider transactions, and filings - all pulled directly from SEC XBRL, no derived middle layer, every number traceable back to the original filing. Built for real use: amended filings are handled, non-December fiscal years computed correctly, Q4 reconstructed from 10-K + 10-Q. Rich economic models per company cover offerings, peers, operating levers, competitive advantages, flywheels, strategic initiatives, and failure modes. ETF/MF exposure models cover mandate, portfolio construction, costs, sensitivities, and use cases - AI-friendly for LLM workflows. 250M+ facts, 5M+ filings, updated daily. REST API plus native MCP server for Claude, Cursor, and other AI tools

StockFit API provides structured access to US financial data sourced directly from SEC filings. It enables developers and analysts to retrieve accurate, normalized financial statements and other SEC documents, thereby supporting various investment and analytical applications without adjusted metrics and biases. Users connect to the StockFit API to access raw SEC XBRL filings, which are parsed into structured JSON data. The API allows users to query different financial documents including 10-Ks, 10-Qs, and insider transactions, processing these filings daily for up-to-date information. Integration with AI tools is facilitated through the Model Context Protocol (MCP). The StockFit API is designed for developers, financial analysts, and investment professionals who require accurate and comprehensive SEC data for analysis. It appeals especially to those building trading platforms, investment research tools, and applications utilizing AI technologies.