lawstronaut
U.S. legal data, structured for AI — federal and all 50 states
19,334,478+ U.S. laws, regulations, court decisions, and regulatory materials — federal and state — from 310+ official source portals and 17,924+ issuing authorities. All 50 states and D.C., each covered as its own jurisdiction, in the same structure Lawstronaut uses across 181+ jurisdictions. Ready via API and MCP.
19,334,478+
U.S. federal and state legal records
310+
Official source portals
17,924+
Issuing authorities
Daily
Legal updates
API + MCP
Access
Federal
State
U.S. law lives in a hundred places. Your product needs it in one.
Statutes in the United States Code. Regulations in the eCFR, changing continuously while annual CFR editions lag behind. Rulemaking in the Federal Register and Regulations.gov. Congressional materials on congress.gov and GovInfo. Case law across the Supreme Court, circuit courts, district courts, and specialized courts. Guidance and enforcement scattered across the SEC, FTC, FDA, EPA, OSHA, CFPB, FCC, and the Federal Reserve.
Every state runs its own legislature, code, register, and courts, on its own portal, in its own format — and the answer to a real question usually sits across both levels.
For a research team, that's a week of work and a citation you still have to double-check. For an AI system, it's worse: fragmented access, inconsistent formats, no provenance. Lawstronaut turns federal and state into one structured layer.
Federal and state law, in the same schema
Legislation & regulations
Acts of Congress and the United States Code, CFR titles tracked through the eCFR, final and proposed rules from the Federal Register — taken directly from official publications.
Case law
Decisions from the Supreme Court, the courts of appeals, district courts, and specialized federal courts — including the Tax Court, the Court of International Trade, and the Court of Federal Claims.
Regulatory guidance & enforcement
Rules, notices, guidance, consent decrees, and enforcement materials from federal regulators — SEC, FTC, FDA, EPA, OSHA, CFPB, FCC, Federal Reserve.
Legislative history
Bills, amendments, statutes at large, and congressional materials from congress.gov and GovInfo — version by version, each tied to its source.
All 50 states
State legislation, regulations, and court decisions — each state a separate jurisdiction in the same schema as federal, so preemption and federal-vs-state questions resolve in one call instead of two integrations.
“What did the SEC publish this week?”
— guidance and enforcement, tracked daily.
“How does California differ from federal rules on employee monitoring?”
— federal + state, one schema, one call.
“What did this CFR provision say on 1 January 2025?”
— point-in-time, tracked through the eCFR.
“Which states have passed AI hiring laws, and how do they differ?”
— all 50 states, compared, cited, in one query.
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
Start building with U.S. legal data today
Official legal data. Continuously updated. Ready to be connected to your AI and software systems.
Tell us which jurisdictions you need — federal, state, or both — and we'll confirm coverage and get you set up.