United States federal legal data from official sources, structured for AI and legaltech.
Access 6,954,469+ U.S. federal laws, regulations, court decisions and regulatory materials from U.S. government, judicial and regulatory institutions across 72 official portals. Search U.S. federal legal data directly or connect it to your AI agent, legaltech product or research workflow through Lawstronaut's API and MCP server. Every record is linked to its official source and structured in the same format used across more than 150 jurisdictions.
6,954,469+
U.S. federal legal records
72
official U.S. federal source portals
10,038
issuing authorities
Daily
updates
SEE IT ANSWER
Which U.S. federal law governs the privacy of health information?
The Health Insurance Portability and Accountability Act of 1996 (HIPAA), enacted as H.R.3103 — with its Privacy and Security Rules administered by HHS.
Source: United States Congress — congress.gov/104/statute/STATUTE-110/STATUTE-110-Pg1936.pdf
Retrieved: 2026-06-11 · Version: 1 · Cited in-turn
The official U.S. federal sources we cover
Lawstronaut collects U.S. federal legal materials from official government, congressional, court, and regulator sources. Each record links back to its original source, with metadata such as issuing authority, publication date, legal link, portal, content type, and version where available.
Source categories: the United States Code and eCFR · the Federal Register and Regulations.gov · Congress and GovInfo · the federal courts · sector regulators · departments and agencies
- United States Code (uscode.house.gov)
- eCFR (ecfr.gov)
- Federal Register
- Regulations.gov
- United States Congress (congress.gov)
- GovInfo
- Supreme Court of the United States
- United States Courts
- Securities and Exchange Commission (SEC)
- Federal Trade Commission (FTC)
- Food and Drug Administration (FDA)
- Environmental Protection Agency (EPA)
U.S. federal legal source types covered
U.S. federal legal coverage includes primary legislation, secondary legislation, regulatory materials, court decisions, guidance, enforcement documents, and legislative history where available.
Legislation & Regulations
Acts of Congress and the United States Code, Code of Federal Regulations titles from the eCFR, and final and proposed rules from the Federal Register, taken directly from official publications.
Legislative History
Bills, amendments, statutes at large, and congressional materials from congress.gov and GovInfo where available, version by version, each tied to its source.
Regulatory Guidance & Enforcement
Rules, notices, guidance, consent decrees, and enforcement materials from federal regulators such as the SEC, FTC, FDA, EPA, OSHA, CFPB, FCC, and the Federal Reserve.
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 — where available.
One U.S. federal legal data layer. Four ways to use it.
Lawstronaut API
Query U.S. federal laws, regulations, court decisions, regulatory guidance, and enforcement materials through a REST API. Use structured metadata, full text, Markdown, source links, and version history to power legaltech products, compliance workflows, and internal research tools.
GET /v2/contents?iso=US&limit=20Lawstronaut MCP
Connect ChatGPT, Claude, Gemini, Cursor, and other AI agents to U.S. federal legal sources. Questions become live searches against the corpus and return citation-ready answers grounded in official U.S. materials — deployable in minutes, with no integration work.
AI Agent Integration
Give your legal AI agent same-turn provenance: it retrieves current U.S. federal legal materials — official source links, metadata, and full text — before generating an answer, with a citation and timestamp on every response.
Build with Lawstronaut
Build U.S. legal search, monitoring, compliance, research, and legal AI features without crawling, parsing, normalizing, and updating official sources yourself. We handle source discovery, ingestion, normalization, versioning, and change detection; you build the product.
What you can do with U.S. federal legal data
- Retrieve legal metadata, full text, Markdown, source links, and original source files where available
- Filter by jurisdiction, portal, issuing authority, authority type, language, status, and dates
- Access official legal links for citation and audit trails — citation, timestamp, and source link returned in the same turn
- Track point-in-time versions and article-level changes across U.S. federal legal materials
- Run Horizon Scanning — track what changed in U.S. federal law, when, and where, without manual monitoring
- Connect AI agents to official U.S. sources through MCP; use the API for search, monitoring, compliance, and AI ingestion workflows
- Build internal U.S. legal research tools without maintaining your own crawler stack
Why Lawstronaut for U.S. federal legal research
U.S. federal legal information is spread across the United States Code, the eCFR, the Federal Register, congressional sources, dozens of agencies and regulators, and the federal courts. For humans, that means slow research. For AI systems, it's a bigger problem: fragmented source access, inconsistent formats, missing provenance, and weak citation trails.
Lawstronaut turns those sources into one structured legal data layer — source links, metadata, full text, versioning, and API/MCP access. Your product or agent retrieves the legal source directly instead of relying on generic web search or unverified model memory. Every answer carries a citation, a timestamp, and a link to the official document — the provenance that makes a legal research platform defensible to auditors and regulators.
About United States federal legal coverage
The United States is a common-law federal system. Statutes are codified in the United States Code, regulations in the Code of Federal Regulations (tracked continuously through the eCFR), and rulemaking flows through the Federal Register and Regulations.gov. Congressional materials sit on congress.gov and GovInfo, and case law spans the Supreme Court, the circuit courts of appeals, the district courts, and specialized courts. Regulatory guidance sits with agencies such as the SEC, FTC, FDA, EPA, OSHA, CFPB, and the Federal Reserve. Lawstronaut also covers all 50 U.S. states and the District of Columbia as separate jurisdictions.
U.S. federal law moves quickly: the Federal Register publishes thousands of rules and notices a year, agency positions shift with administrations, and the eCFR changes continuously while annual CFR editions lag behind. Point-in-time data straight from the source is what keeps a U.S. legal research answer correct today.
Built for
Legaltech companies
Build U.S. legal search, monitoring, drafting, compliance, and AI research features without maintaining your own legal source pipeline.
Compliance & GRC teams
Monitor U.S. federal regulatory materials, guidance, enforcement updates, and legal changes across official sources — without a manual monitoring rota.
AI builders
Ground legal AI answers in official U.S. federal legal text, source links, and metadata — answers that survive an auditor.
Internal legal teams
Give lawyers and business users faster access to U.S. federal legal sources through AI agents and internal tools, without hiring a researcher per jurisdiction.
Frequently asked questions
Related jurisdictions
California
North America
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New York
North America
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Texas
North America
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Canada
North America
View jurisdiction →
U.S. state jurisdictions: all 50 states and the District of Columbia, each covered separately
Related products: Lawstronaut API · Lawstronaut MCP · Legal AI agents · Pricing
Start building with U.S. federal legal data today
Connect your AI to United States federal legislation, regulations, and case law through MCP or the API.