Lex Machina
Lex Machina is a legal analytics platform owned by LexisNexis that transforms raw court documents and dockets into structured datasets so litigators, corporate legal teams, insurers, and judges can make data-driven decisions about cases, courts, judges, lawyers, parties, and damages. The platform covers all 94 federal district courts, the 13 federal courts of appeals, the PTAB, the ITC, bankruptcy courts, and a growing list of state courts (with 18M+ additional state cases for party analytics), and tracks 8,000+ judges, 6,000+ expert witnesses, 146M+ counsel mentions, and 149M+ party mentions across 10M+ cases and 45M+ documents. Lex Machina exposes its Legal Analytics through a public Litigation Analytics API (OAuth 2.0, JWT bearer tokens) at api.lexmachina.com with synchronous Python and Node.js client libraries plus an A2A (Agent-to-Agent) agent for AI/agent integrations. Practice area coverage includes Antitrust, Bankruptcy, Commercial, Consumer Protection, Contracts, Copyright, Employment, ERISA, Insurance, Patent, Product Liability, Securities, Tax, Torts, and Trademark litigation. Lex Machina was founded in 2010 as a Stanford University Law School spin-out and was acquired by LexisNexis (RELX) in 2015.
1 APIs
25 Features
LegalLegal AnalyticsLegal TechnologyLitigationLitigation AnalyticsCourt DataDocketsJudgesLaw FirmsAttorneysPatentsPTABITCBankruptcyAppealsState CourtsFederal CourtsLexisNexisDataAnalytics
Federal District court coverage across all 94 U.S. district courts
Federal Appeals coverage across all 13 U.S. courts of appeals (since 2012)
State court coverage with 18M+ additional cases used for party analytics
Bankruptcy court case data and bankruptcy judge analytics
PTAB trial data (Patent Trial and Appeal Board)
ITC investigation data (International Trade Commission)
8,000+ federal and state judges tracked with behavior analytics
6,000+ expert witnesses tracked
146M+ counsel and 149M+ party mentions indexed across 10M+ cases
Attorney, Law Firm, Party, Judge, Magistrate, and Patent entity lookups
Substring search across attorneys, judges, law firms, and parties
Case Query API with filtering by participants, dates, events, resolutions, findings, remedies, and damages
District Case Analytics from either an ad-hoc query or a saved Alert
Saved Alerts with daily run results retrievable by date
Docket-entry retrieval for federal, state, and ITC dockets
Reference lists for case resolutions, case tags, case types, courts, damages categories, events, judgment sources, appellate decisions, and appealability rulings
OAuth 2.0 client-credentials authentication with JWT bearer tokens
REST + JSON over HTTPS; OpenAPI 3.1.0 specification at /docs
Official Python (sync) and Node.js client libraries on GitHub
A2A (Agent-to-Agent) agent for AI/LLM integrations on port 10011
Protege in Lex Machina — generative-AI analytics assistant in the UI
Practice areas: Antitrust, Bankruptcy, Commercial, Consumer Protection, Contracts, Copyright, Employment, ERISA, Insurance, Patent, Product Liability, Securities, Tax, Torts, Trademark
Customer base across AmLaw 100/200 firms, corporate legal departments, insurers, government agencies, and law schools
Apache-2.0 licensed client SDKs and example code on GitHub
SOC 2 and ISO certifications via LexisNexis enterprise security program