The Legal Data Infrastructure for AI

Full U.S. case law coverage, AI-ready, continuously updated — built for legal tech innovators and enterprise platforms.

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AI Is Only as Good as Its Data

Most legal AI tools are limited to superficial API access. Lexsphere delivers the full U.S. legal corpus — structured, verified, and ready for AI integration.

Comprehensive Coverage

U.S. Court Coverage by Federal Circuit

1st Circuit
2nd Circuit
3rd Circuit
4th Circuit
5th Circuit
6th Circuit
7th Circuit
8th Circuit
9th Circuit
10th Circuit
11th Circuit
D.C. Circuit
Federal Circuit
ME
Maine
NH
New Hampshire
MA
Massachusetts
RI
Rhode Island
PR
Puerto Rico
VT
Vermont
CT
Connecticut
NY
New York
PA
Pennsylvania
NJ
New Jersey
DE
Delaware
VI
Virgin Islands
MD
Maryland
VA
Virginia
WV
West Virginia
NC
North Carolina
SC
South Carolina
TX
Texas
LA
Louisiana
MS
Mississippi
MI
Michigan
OH
Ohio
KY
Kentucky
TN
Tennessee
WI
Wisconsin
IL
Illinois
IN
Indiana
MN
Minnesota
IA
Iowa
MO
Missouri
AR
Arkansas
ND
North Dakota
SD
South Dakota
NE
Nebraska
WA
Washington
OR
Oregon
CA
California
NV
Nevada
ID
Idaho
MT
Montana
AZ
Arizona
AK
Alaska
HI
Hawaii
GU
Guam
MP
N. Mariana Islands
WY
Wyoming
UT
Utah
CO
Colorado
KS
Kansas
OK
Oklahoma
NM
New Mexico
AL
Alabama
GA
Georgia
FL
Florida
DC
District of Columbia
FC
Federal Circuit
Patent, International Trade, Federal Claims

50

States Covered

94

Federal District Courts

13

Circuit Courts

100%

Supreme Court & Specialty Courts

Daily

Updates

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Solutions

AI Legal Assistant Icon

AI Legal Assistant

Powerful legal chatbot with accurate citations and case knowledge.

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Citation Validator Icon

Citation Validator

Verify and correct legal citations with confidence.

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AI Citator Icon

AI Citator

Track case relationships and citation networks.

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Case Law Analytics Icon

Case Law Analytics

Derive insights from patterns across legal decisions.

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Products & APIs

Case Law Corpus

Complete database of U.S. case law with structured metadata and full-text search.

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AI Summaries & Holdings

AI-generated case summaries and extracted holdings for rapid legal research.

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Vectorized Search Index

Pre-built vector embeddings for semantic search and AI applications.

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Update and Sync Services

Keep your legal data current with automated updates and synchronization.

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Always Fresh, Always Reliable

1

Court feeds

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2

Processing

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Normalization

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4

Citation Updates

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API Delivery

New decisions ingested daily. Citations tracked forward and backward. Always current, always reliable.

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Trusted by Industry Leaders

"Lexsphere's data infrastructure has transformed our legal AI capabilities. The quality and comprehensiveness of their case law corpus is unmatched in the industry."
— Legal Tech Innovation Lead, Fortune 500 Company

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