Lexis APIs are a flexible gateway to LexisNexis legal content, business intelligence, analytics, and AI capabilities integrating it directly into your internal tools and everyday workflows—so you can work faster, stay informed, and make smarter decisions.
Programmatic access to generative AI features and tasks
Grounded in LexisNexis content, secure endpoints expose Protégé’s core “Ask” and “Summarize” functionality, returning authoritative answers and citations drawn from LexisNexis Primary Law, Secondary Materials, Practical Guidance, and more.
Easily embed Protégé into firm intranets, client portals, or bespoke practice-area tools with content-aware intelligence to automatically detect when a user query requires LexisNexis content or firm knowledge (and route accordingly); ability to trigger dynamic prompts based on jurisdiction, practice area, or workflow inputs to retrieve grounded legal guidance directly within workflow.
OAuth 2.0 authentication, role-based access controls, firm-wide throttling, and audit logging meet strict privacy and compliance standards.
Search and retrieve legal and news content, setup alerts for new content
Access the same litigation analytics and data used by the Am Law 100 and Fortune 500. The Lex Machina API provides comprehensive case data -- including resolutions, damages, remedies, and findings -- and uniquely identifies attorneys, firms, and parties involved.
Access detailed data including legislation, regulations, agency documents, local ordinances, executive orders, and ballot measures. State Net content is normalized, so you can tell where a measure is—from proposal to adoption—even when legislative and regulatory procedures vary from state to state. The JSON format is highly structured and always consistent, giving you the control needed to present data in the most useful way. Get links to all versions of legislative or regulatory text, plus related intelligence.
Search and retrieve global news and analysis on regulatory risk from MLex with exclusive reporting on probes, policy and enforcement trends, litigation and legislative developments. The API provides access to all published content for three content types: Insight (news) and Comment (deep-dive analysis) stories written in-house by MLex investigative journalists and Official Statements (third-party documents published with an MLex summary).
Gain access to Law360's ‘Core’ practice of law coverage spanning 65+ sections on every major topic, state and industry. Expert Analysis is also included with op-eds by contributing attorneys.
A variety of legal, government, corporate, education, and business organizations who need deep investigations of a people, businesses, or property records. Used when preparing for trial, conducting due diligence and running conflict checks, LexisNexis public records is the right choice in any non-FCRA regulated situation where a complete picture of a person, business or asset is required.
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Search and retrieve legal and news content, setup alerts for new content
LexisNexis protects customer data wherever it is stored, sent, or accessed. We apply privacy by design principles at every stage of our systems, products, and business processes to ensure security and compliance are built in from the start. Our advanced encryption and rigorous compliance protect your sensitive information.
LexisNexis systems meet the highest standards for information security. We partner with trusted, enterprise-grade cloud providers, continuously monitor and improve our infrastructure, and undergo regular third-party audits to maintain industry-leading certifications.
LexisNexis follows the RELX Responsible AI Framework to ensure our AI protects privacy, is transparent and explainable, avoids unfair bias, includes human oversight, and is designed for real-world impact.
We never use customer data to train AI models and maintain robust data retention and deletion policies. Identifiable information is removed from AI interactions so that we can improve performance without compromising privacy.
LexisNexis, a division of RELX Inc., may contact you in your professional capacity with information about our other products, services, and events that we believe may be of interest. You can manage your communication preferences via our Preference Center. You can learn more about how we handle your personal data and your rights by reviewing our Privacy Policy.
Law Firms & Legal Departments
Corporations & Compliance Teams
Academic & Research Institutions
Public Sector
