U.S. Court Opinions (LAW.co corpus)

Provider

LAW.co

Source

• Caselaw Access Project (Harvard Law School Library) — Bulk-loaded legacy corpus (CaseMeta.source = 'CAP'). CAP's PDF hosting has been retired, so stored frontend_pdf_url values are dead links.
• CourtListener (Free Law Project) — Ongoing ingestion of plain_text / xml_harvard opinion bodies only (never FLP's CC BY-ND html_with_citations layer).

Category

Legal

Geographic coverage

United States. Coverage is uneven by year and court (ingestion plan notes under-covered 2019–2024 years).

Jurisdiction

U.S. federal, U.S. state (all 50)

Date range

Not yet verified. Unverified. The ingestion plan documents a historical span ending 2024-09 before ongoing CourtListener ingestion.

Last updated

Not yet verified

Update frequency

Daily (LAW.co Celery beat 'ingest-recent-daily' from CourtListener), when the ingestion worker is running.

Record count

Not yet verified. Unverified. law-co-backend docs/case-ingestion-plan.md reports a 2026-06-25 production measurement and law.co/llms.txt advertises the corpus size, but Data.co has not verified a count. LAW.co exposes a total via GET /Public/CaseIds; confirm with the owner before publishing a number.

Formats

JSON

Document types

court-opinion

Pricing tier

Standard

[
  {
    "case_id": "demo:case:0001",
    "name": "[DEMO] Sample Applicant v. Sample Agency (No. 1)",
    "decision_date": "2003-02-15",
    "docket_number": "DEMO-DKT-0001",
    "citations": [
      {
        "cite": "DEMO-0001",
        "type": "demo"
      }
    ],
    "court": {
      "court_name": "Demo South Supreme Court"
    },
    "jurisdiction": {
      "jurisdiction_name": "Demo Jurisdiction South"
    },
    "opinion_text": "PLACEHOLDER TEXT. This is a synthetic demo record generated by Data.co for interface development. It is not a real court… Topic: demo-property.",
    "judges": [
      "Demo Judge B"
    ],
    "parties": [
      "Placeholder Party A",
      "Placeholder Party B"
    ],
    "provenance": {
      "provider": "demo",
      "source": "demo",
      "license": "demo-synthetic",
      "is_derived": false
    },
    "demo": true
  },
  {
    "case_id": "demo:case:0002",
    "name": "[DEMO] Example Lessee v. Example Lessor (No. 2)",
    "decision_date": "2006-03-15",
    "docket_number": "DEMO-DKT-0002",
    "citations": [
      {
        "cite": "DEMO-0002",
        "type": "demo"
      }
    ],
    "court": {
      "court_name": "Demo Federal Circuit Court"
    },
    "jurisdiction": {
      "jurisdiction_name": "Demo Federal"
    },
    "opinion_text": "PLACEHOLDER TEXT. This is a synthetic demo record generated by Data.co for interface development. It is not a real court… Topic: demo-employment.",
    "judges": [
      "Demo Judge C"
    ],
    "parties": [
      "Placeholder Party A",
      "Placeholder Party B"
    ],
    "provenance": {
      "provider": "demo",
      "source": "demo",
      "license": "demo-synthetic",
      "is_derived": false
    },
    "demo": true
  },
  {
    "case_id": "demo:case:0003",
    "name": "[DEMO] Test Petitioner v. Test Respondent (No. 3)",
    "decision_date": "2009-04-15",
    "docket_number": "DEMO-DKT-0003",
    "citations": [
      {
        "cite": "DEMO-0003",
        "type": "demo"
      }
    ],
    "court": {
      "court_name": "Demo North Appellate Court"
    },
    "jurisdiction": {
      "jurisdiction_name": "Demo Jurisdiction North"
    },
    "opinion_text": "PLACEHOLDER TEXT. This is a synthetic demo record generated by Data.co for interface development. It is not a real court… Topic: demo-torts.",
    "judges": [
      "Demo Judge D"
    ],
    "parties": [
      "Placeholder Party A",
      "Placeholder Party B"
    ],
    "provenance": {
      "provider": "demo",
      "source": "demo",
      "license": "demo-synthetic",
      "is_derived": false
    },
    "demo": true
  }
]