SEC Financial Reports API
SEC data API with 24h refresh, but Edgar, yfinance, and Alpha Vantage already solve this.

Data-first move I appreciate: EDGAR-sourced, normalized financials plus 13F aggregation and a 'cluster buying' insider flag give immediate, actionable entry points for dividend and value investors. The UI is tidy and scannable — lists, recent updates and investor portfolios are surfaced clearly — but there’s nothing radically new here (no backtesting, unclear export/API options), so it’s a very useful tool for DIY research rather than a replacement for paid terminals.
Retail investors, individual researchers, financial analysts, and quant hobbyists
SEC data API with 24h refresh, but Edgar, yfinance, and Alpha Vantage already solve this.
Institutional holdings scraper; FactSet and Bloomberg terminals already own this.
Free SEC filing tracker with compensation data that Bloomberg charges for.
Unlocked Japanese financial data—XBRL parsed to JSON for 11k companies, no signup.
Yet another financial dashboard when Koyfin and Yahoo Finance already exist.
XBRL parsing is hell; this API serves raw SEC data without adjusted metrics.