What OpenCase indexes, in its own numbers
OpenCase is unusually open about its corpus, and that is to its credit. The Sources Portal is a public page listing every dataset behind the product, with row counts and the date each was last refreshed. At the time of checking it showed 88 indexed sources and 7,109,854 rows, with CourtListener supplying more than 4.2 million cases, the Harvard Caselaw Access Project a further 507,370, and the eCFR, GovInfo and the Federal Register covering regulations.
The homepage describes the same foundation: training on Cornell LII datasets of United States statutes and Supreme Court opinions, daily indexes of federal and state opinions and RECAP dockets, and authenticated PDFs from GovInfo. Every one of those is an American source. The country selector on the Sources Portal is set to the United States and the 88 sources are all filed under Federal / National.
- “United States. 88 indexed (7,109,854 rows). Federal / National (88). US/CourtListener ... 4,257,838 cases indexed. US/HarvardCAP ... 507,370 cases indexed. US/eCFR ... 226,983 regulations indexed” , जाँचा गया 2026-09-23
- “Trained on Cornell LII's authoritative datasets of U.S. statutes and Supreme Court opinions. Uses daily indexes from open-source corpus of federal & state opinions and RECAP dockets. Ingests authenticated PDFs from govinfo's Federal Register, CFR & public-law archive.” , जाँचा गया 2026-09-23



