Case law
Search court decisions and qualified precedents. Follow the available source links to examine the original decision.
Brazilian legal research
Legal research, linked to its source.
IAJUS brings together Brazilian case law, legislation and legal scholarship. Research with AI and follow links to official sources whenever available.
This page introduces the service in English. Legal documents, research interfaces and the pages linked below remain in Portuguese.
What IAJUS does
Legal sources in one research workflow
Find material by its meaning or wording, and explore it by area of law. IAJUS connects legal research to the AI assistant you use, or to its own web portal.
Legislation and scholarship
Consult Brazilian legislation and open-access legal scholarship alongside case law. Read the published coverage to understand the scope of each collection.
Search by meaning and text
Semantic, hybrid and keyword search offer different ways to find relevant material. The legal classification follows a structure aligned with the Brazilian National Council of Justice taxonomy.
Connect your assistant
Use the existing plugin or MCP connection instructions for your assistant. The integration pages describe the available platforms and setup steps.
Sources and scope
Understand what you are reading
The collection draws on courts, public institutions and open-access legal publications. IAJUS records provenance and removes duplicate records. Published coverage and data notes describe the collection and its limits.
Coverage (Portuguese) · Data and provenance (Portuguese)
Research supports professional judgement. Read the original material and assess whether it applies to the matter at hand.
The team
Law and engineering, working together
IAJUS was built by founders with backgrounds in law, computing and data science. Their shared aim is to connect legal research with identifiable sources.
Meet the founders (Portuguese)
Beta access is by invitation and is free during the beta. Continue to the existing access request or contact page in Portuguese.