LexyCorpus Live public corpus

The law belongs to everyone.

LexyCorpus is free legal research for attorneys, self-represented people, and anyone who needs to understand the law. Search primary law without putting basic access behind a paywall.

Coverage now

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published primary-law authorities

Jurisdictions
53
Source class
Primary law
Current grade
Mostly C baseline
Secondary sources
Coming later

What is covered

Public law, built to be useful.

The current corpus covers federal, all 50 states, the District of Columbia, and Puerto Rico. We started with broad public legal data so research could begin now while official-source verification proceeds jurisdiction by jurisdiction.

Judicial opinions

Live

Federal and state opinions with court, decision date, citations, primary text, and the source used for the baseline.

Statutes and constitutions

Live

Section-level text across the national Open US Law snapshot, with canonical identifiers and publisher links preserved.

Administrative materials

Growing

Agency opinions, administrative decisions, regulations, rules, and ethics opinions are classified separately as coverage expands.

Secondary sources

Later

Practice guides, commentary, headnotes, and proprietary editorial content are not part of the current product.

How we are building it

Launch broadly. Verify carefully. Keep improving.

CourtListener and Open US Law made broad public legal data available. That lets people research now while we compare the text with official court, legislature, and government publications.

View the national source registry
  1. 1

    Start with public legal data

    CourtListener case law and Open US Law statutes and constitutions provide broad public coverage now.

    CourtListener bulk dataOpen US Law
  2. 2

    Keep the source copy

    We preserve the material used to publish each record so the text can be checked again when a publisher changes it.

  3. 3

    Compare with official publishers

    Official court and legislature sources are checked jurisdiction by jurisdiction. A clean diff can move a record from C to A.

    U.S. Supreme CourtGovInfoConnecticut opinions
  4. 4

    Monitor changes and defects

    Publisher updates, release dates, and corrections drive rechecks. Suspected and confirmed defects remain visible as D or F.

Verification grades

The grade tells you what has been checked.

It is not a quality score or an AI confidence number. It describes the record’s relationship to an official source and any known defect.

  1. A

    Verified against official source

    The text has been checked against an official court or government publication.

  2. B

    Previously verified; recheck due

    An official-source check exists, but it is due to be refreshed.

  3. C

    Public-source import; verification pending

    The text came from a public legal dataset and has not yet been checked against official records.

  4. D

    Potential problem; verify before relying

    A suspected issue remains unresolved and is shown with a prominent warning.

  5. F

    Known problem; do not rely

    A material problem is confirmed; the record remains visible for transparency.

Start researching

Explore published authorities.

Search all authorities

For developers and agents

Build legal tools on open law.

The API and remote MCP expose the same authorities, citations, versions, verification grades, and warnings used by the research website.

API manifestRemote MCP