About OpenCase
Frontier legal AI,
for everyone.
OpenCase brings frontier AI to the work of a law practice: research, drafting and document review, built for solo attorneys and small firms. Every answer cites its sources, so you can check the work.
II. ARGUMENT
B. Plaintiff Will Suffer Irreparable Harm Absent Relief
Defendant's breach has already cost Plaintiff one distribution contract, and two more are up for renewal in March.
Plaintiff may suffer some harm if the injunction is denied. Without relief, Plaintiff is likely to lose its two largest customers before trial, a harm no damages award can repair. That is the showing the Supreme Court requires: irreparable injury must be likely, not merely possible. 1
Our charter
AI is the great equalizer in law.
The law is the same for everyone who reads it. Access to it has never been. A large firm can put a team of associates and every paid database behind a single motion. Most attorneys work without either, and their clients feel the difference.
That gap has shaped who can take on a hard case, and how well a client is represented when they do.
AI can close it, but only if lawyers can trust it. So OpenCase answers from primary law, shows the source behind every claim, and is priced for a firm of one.
We think an argument should win on its merits, not on the size of the firm making it.
Our principles for responsible AI
Authoritative sources
Every answer links to the opinions, statutes and regulations behind it. No source, no claim.
Transparent verification
Citations open to the passage they rely on, and we flag cases that later courts have questioned or overruled.
Built for small firms first
Sign up online and get to work. No IT team, no annual negotiation.
Where our law comes from
OpenCase answers from public, official legal sources: court opinions, codes and regulations, collected and kept current. Every collection is listed in the Sources Portal.
- indexed legal documents
- 38M+
- official and public sources
- 1,300+
- countries and territories
- 210+
In the United States
CourtListener
Federal and state court opinions, updated daily
Caselaw Access Project
Historical U.S. case law from Harvard Law School
U.S. Code and eCFR
Federal statutes and the current Code of Federal Regulations
Federal Register and GovInfo
Rules, proposed rules and notices from the U.S. GPO
Counts from the Sources Portal, August 2026. OpenCase is independent and not affiliated with these organizations.
Research, drafting and files in one place
Your case files sit next to your research, so answers can draw on your documents and drafts can draw on the law.
Edit with your facts in view
Rewrite, expand or tighten a section, grounded in your document's facts and arguments.
Keep case files in one place
Upload documents once, then ask questions across them with the law alongside.
Search the law that applies
Pick your jurisdictions so answers stay on the courts and codes that bind you.
Work inside Microsoft Word
The Word add-in brings research and editing into the document you are already drafting.
Review contracts to your playbook
Flag clauses that depart from your firm's standards and get a suggested redline for each.
Capture time you'd otherwise lose
Time entries are drafted from your email and calendar and sorted by matter, ready to review.
Security
Your files and chats are encrypted at rest and in transit. We have completed our SOC 2 Type II audit and are certified to ISO/IEC 27001 and ISO/IEC 42001. The Trust Center documents our security controls and policies.
Visit the Trust Center →Company
- Legal name
- OpenCase, Inc.
- Based in
- San Francisco, California
- Support
- support@opencase.com
- Security
- security@opencase.com
See for yourself
Try OpenCase on a real research question, then open every citation in the answer.