Connect your AI to 42+ million laws and court cases!
Lawstronaut is the infrastructure layer that connects AI agents and software to millions of legal documents across 150+ jurisdictions, structured legal data, continuously updated, and ready to use via API and MCP.
42+ million
Legal records
150+
Jurisdictions
Continuous
Legal updates
API + MCP
Access
Trusted by builders shipping legal AI worldwide
Not a training set. Not a crawler. Legal data infrastructure for AI systems.
Most "legal AI" products hand you a corpus and wish you luck. We built the pipeline behind the corpus, continuous ingestion from official primary sources, normalization into a consistent schema, change-detection at the article level, and an MCP server that hands your agent exactly the slice of law it needs, with provenance.
Your agent doesn't need to be trained on the law. It needs to look up the law, reliably, every time it acts.
Why legal AI hallucinates, and how structured legal data prevents it
Legal AI is only as reliable as the legal data behind it. Lawstronaut provides the infrastructure layer that gives AI systems access to structured, continuously updated, and source-grounded legal intelligence across jurisdictions.
Everything the law says, structured.
DATA
Legislation & Regulations
Every law, in every country, always up to date.
Laws and regulations from 150+ countries, collected directly from official government sources, cleaned, structured, and updated every day. Your product or AI agent always works from the version that's actually in force, not the one that was accurate six months ago.
From national legislation to sector-specific regulations, everything your agent needs to answer legal questions with confidence.
EU
USA
UK
Germany
France
Japan
Singapore
Brazil
India
Canada
AustraliaTODAY · UPDATED 14 MIN AGO
- IN FORCE
GDPR · Regulation (EU) 2016/679
Amended · Article 22
- IN FORCE
Digital Services Act
In force · v2
- IN FORCE
Cookie Directive · 2009/136/EC
Active
One legal infrastructure, many integrations.
PRODUCT
Lawstronaut API
Structured legal data, served on demand.
A RESTful legal data API giving developers programmatic access to 42+ million laws, regulations, court cases, and official guidance across 150+ jurisdictions. Filter by country, issuing authority, document type, date, or topic. Retrieve full text, markdown, metadata, and versioned content, with OAuth 2.0 and predictable JSON responses built for production.
The API is the foundation. Every other Lawstronaut product is built on it.
200 OK
{ "results": [ ... ] }
The legal data layer for legal tech builders.
LEGAL INTELLIGENCE INFRASTRUCTURE
Build with Lawstronaut
The legal data layer for legal tech builders.
If you're building a legal AI product, compliance tool, or regulatory intelligence platform, Lawstronaut is your data infrastructure. Don't spend two years building fragile jurisdiction-by-jurisdiction crawlers. Plug into 42+ million records, 150+ jurisdictions, daily updates, and article-level change detection from day one.
You build the product. We maintain the law.
We handle source discovery, normalization, versioning, and legal change tracking so your team can focus on building what makes your product unique.
Your product
UI, workflows, agents
Lawstronaut SDK
Developer tools
API + MCP
Research, retrieval, evidence
Legal intelligence layer
Laws, case law, guidance, history
Versioning & change detection
Point-in-time law
Official legal sources
42+ million legal records · 150+ jurisdictions
Your legal AI is only as accurate as its last source
The fix isn't cramming more law into model weights. It's giving the agent a reliable, real-time source it can call before it speaks. Lawstronaut is that source. Your agent stops guessing because it can look up the answer, with citation, timestamp, and a link back to the official document, in the same turn.
YOUR AI AGENT
“What did the GDPR look like on Jan 1, 2024?”
TOOL CALL · lawstronaut.evidence
{ "instrument": "32016R0679", "date": "2024-01-01" }
GROUNDED ANSWER
“On Jan 1, 2024, Article 22 GDPR required…” ✓ Source: eur-lex.europa.eu ✓ Version: 2024-01-01
The law changed. Your AI doesn't know.
Legal AI trained on a static corpus goes stale the moment it ships. Regulations are amended. Guidance is updated. Court decisions shift the interpretation of statute. Lawstronaut detects changes at the article level and surfaces them in real time, so your agent always knows what happened, not what was true two years ago.
You can't build global coverage with one crawler.
Global legal coverage means thousands of official sources, government portals, regulators, ministries, gazettes, court systems, in dozens of languages, with no consistent format. We've spent years building the infrastructure to handle this at scale. Don't rebuild it. Plug into it.
Built for builders, agents, and the teams behind them
If your product, agent, or team depends on knowing what the law says, and what just changed, this is built for you.
Legaltech platforms
Shipping AI to lawyers and in-house teams, you need defensible answers and an always-current corpus you don't have to maintain.
Compliance and GRC teams
Running agents against regulatory change, Horizon Scanning mode surfaces what changed, when, and where, without manual monitoring.
AI builders in regulated industries
Finance, health, data protection, and many more. Your agent's answers need to survive an auditor or a regulator.
Internal legal ops
Automating advice on a global footprint, without hiring a researcher per jurisdiction.
Not sure which fits?
Built by the lawyers behind filerskeepers
Lawstronaut was founded by the same top-tier lawyers who made filerskeepers a big success. We want to change the legal business model, aiming to provide stellar quality and affordability to solve legal problems once and for all.
We have over a decade of experience in commercial laws and compliance, with many mentions in Chambers and Legal 500 rankings, and a proven track record of turning messy, fragmented legal information into structured, operational intelligence. We have sat on the lawyer side of bad legal data. We know exactly where AI agents fall over without it. That's why we built the infrastructure first.
Today, Lawstronaut transforms legal information into structured, continuously updated intelligence that AI agents, legal teams, and software products can actually work with.
Confidently know what happened this week
Get API and MCP access.