Bank statement parsers are hard to test. Real data is private, every bank formats differently, and everyone claims "99% accuracy" with no way to verify. The Bankstatemently Open Benchmark is a free dataset of synthetic bank and credit card statement PDFs designed around real parsing challenges. 5 countries, 14 edge cases, fictional banks with realistic formatting. Download, parse, submit to the free evaluation API, and get field-level accuracy scores. MIT-licensed, open-source on GitHub.