lawstronaut
Case Law API for Legal Research and AI Applications
Court decisions, judicial opinions, and tribunal rulings — structured and accessible through one REST API.
Build legal research tools, litigation platforms, and AI applications with case law data from courts across jurisdictions. Retrieve structured metadata, available full-text judgments, and traceable source links without building your own court-data pipeline.
{
"id": 3546342,"jurisdiction": "EU","type": "judgment","court": "Court of Justice","case_number": "C-311/18","ecli": "ECLI:EU:C:2020:559","decision_date": "2020-07-16","version": 1,"crawled_at": "2026-11-05","source_url": "https://infocuria.curia.europa.eu/document/C-0311-2018-18-00000000RP-01-P-01-220677-1-EN.html",}200 OK · full text, cross-referenced, source-linked
78,500,000+
Legal records
245+
Jurisdictions
1335+
Official portals
489,000+
Governmental institutions
Daily
Legal updates
Accessing court decisions shouldn't be so complicated
Every court publishes decisions differently. Some provide searchable databases. Others publish PDFs, inconsistent metadata, or documents that are difficult to retrieve programmatically.
And when you're building a legal research platform or AI application, collecting judgments is only the beginning. You still need to organize them, identify their sources, reconcile different formats, and keep your database updated.
That's a lot of infrastructure to maintain before you've even started building your product.
Lawstronaut handles the legal data layer, so your team can focus on what you're building.
Structured case law. Ready for your software.
01
Full-text court decisions
Access judicial opinions, judgments, and tribunal decisions in machine-readable formats, with full text available for supported records.
02
Rich metadata and filtering
Search and filter by jurisdiction, issuing court, document type, decision date, and other available metadata.
03
Cross-jurisdictional coverage
Retrieve case law from multiple legal systems through one API, without managing separate court database integrations.
04
Case law with legal context
Explore connections between judicial decisions and the legislation they interpret, where references are available.
05
Official source links
Trace records back to their published sources, with identifiable authorities and supporting metadata.
06
Developer-ready REST API
Structured JSON responses, authenticated access, and cursor-based pagination, designed for integration into your applications.
Find, retrieve, and compare court decisions through one API
❯ “Find court decisions on data protection in the UK.”
Relevant judgments filtered by jurisdiction and available metadata.
❯ “Show me the judgment behind this citation.”
Available full text with traceable source information.
❯ “Compare court decisions across different jurisdictions.”
Case law from multiple legal systems through one consistent data structure.
❯ “Which laws does this judgment reference?”
Related legislation and legal context, where available.
Lawstronaut gives our team access to current, source-verified legal information across jurisdictions we couldn't easily track on our own — which has made our research faster and more defensible.
Miracle Nwaka — Director of Research and Publications, filerskeepers
Ready to integrate case law into your product?
Structured court decisions. Cross-jurisdictional access. Traceable legal sources.
Get the legal data your research platform or AI application needs, without building the infrastructure yourself.