OpenFilings

Ground Truth

Technical writing on verified financial data, cross-GAAP normalization, and building agents that reason from filings — not guesses.

Aug 18, 2026

Earnings in three moments: the date, the release, and the call

Aug 11, 2026

Morning Meeting: your watchlist, written up, once a day

Aug 6, 2026

Supply chain from filings — data terminals usually charge for

Jul 29, 2026

Ask for a company — get today's numbers

Jul 23, 2026

From watchlist to portfolio: position tracking

Jul 15, 2026

Turn OpenFilings MCP into a daily market brief with scheduled tasks

Jul 12, 2026

Earnings flash: guidance numbers pulled from the 8-K press release, not the call

Jul 9, 2026

For You: your home feed, ranked — not a filings firehose

Jul 5, 2026

Trailing twelve months revenue from SEC EDGAR — why summing four 10-Qs is harder than it looks

Jul 4, 2026

CIK, ISIN, LEI — what each identifier means and how to resolve them with a free API

Jul 3, 2026

OpenDART — accessing Korean chaebol financials programmatically

Jul 2, 2026

EDINET explained — how to read Japanese financial filings as a non-Japanese speaker

Jul 1, 2026

Insider trades, press releases, and financial filings — one enriched feed

Jun 30, 2026

One inbox for every filing alert — web, mobile, email, and webhooks

Jun 28, 2026

Red flags in financial filings — what we check automatically

Jun 26, 2026

Finding the right company across markets — before you pull the wrong filing

Jun 24, 2026

Connect Claude, Cursor, and ChatGPT to live filing data with OpenFilings MCP

Jun 22, 2026

Checking our numbers three ways — how we catch mistakes on dual-listed UK companies

Jun 21, 2026

The SEC EDGAR API is free — here's what you still can't do with it

Jun 14, 2026

Normalizing revenue across US GAAP, JP GAAP, and K-GAAP — the hard parts

Jun 8, 2026

Why LLMs hallucinate financial data — and how MCP fixes it