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The verifiable legal research layer for Claude.

The Descrybe Legal Engine brings primary-law authority and verified citations into Claude. For the research question you're working through, the brief section you're drafting, the quote you need to verify.

Every answer tied to the law, not the model.

Choose standalone Legal Engine access for Claude, or the full Descrybe Platform with Legal Engine included.

Descrybe in Claude

Descrybe Legal Engine for Claude: $25/month. First month 50% off with code LAUNCH50. Claude subscription sold separately.

See Descrybe Legal Engine working inside Claude.

See how Claude can use Descrybe to find legal sources, check citations, and bring back answers tied to real law.

How it works.

A legal research toolkit, in Claude.

Connect Descrybe once. Claude gets 13 focused legal research tools backed by a corpus of 300 million legal records, authority analysis, and a legal issue knowledge graph spanning 6.5 million identified legal issues and 16.5 million case-to-issue links.

Descrybe does much of the hard legal-data work ahead of time, across millions of cases, so Claude can work from cleaned text, case summaries, legal issue structure, citation relationships, treatment signals, and source passages instead of assembling and analyzing raw legal materials every time someone asks a question.

Step 1

Start anywhere.

A legal question. A citation. A case name. A quote. A docket number. A pasted brief.

Step 2

Claude composes the workflow.

Searching cases, statutes, and regulations. Running Cytator™ checks. Resolving citations. Verifying quotes. Retrieving source PDFs. Whatever the task needs, Claude reaches for the right tool, or stacks several. You can inspect the Descrybe tool calls and results to see what Claude asked for and what Descrybe returned.

Step 3

The law comes back into the conversation.

Primary-law authority, verified citations, treatment signals, and source passages — ready to use.

The legal research menu Claude can reach for.

01

Analyze a legal question

Helps Claude decide whether it has enough information to start legal research, and ask a few focused clarifying questions when key basics are missing.

02

Concept case search

Finds cases by legal issue, rule, concept, or fact pattern, with stronger authorities surfaced first.

03

Laws and rules search

Finds statutes, regulations, and constitutional provisions by natural-language topic, then brings back the relevant source language.

04

Exact case-text search

Searches judicial opinions for exact words and phrases when a quote, term of art, statutory phrase, or unusual fact pattern matters.

05

Case reference resolver

Turns a citation, case name, docket number, short cite, quote, or messy reference into the right case or a focused candidate list.

06

Case reference extractor

Reads pasted legal text and pulls out the cases being cited, grouping repeats so Claude can see which authorities are in play.

07

Case summary and analysis

Gives Claude a concise, research-ready summary and analysis of a known case before it reasons from the opinion.

08

Focused case passages

Pulls the most relevant source passages from a known case so Claude can work from the language that matters.

09

Case details

Brings in the case caption, court, date, available summaries, opinion inventory, and treatment overview in one place.

10

Case status check

Checks how later cases appear to treat an authority before you rely on it, with a quick positive, negative, cautious, or neutral signal.

11

Citing cases

Finds newer cases that cite the one you are looking at, useful for updates, treatment, and follow-on authority.

12

Quote verification

Checks whether quoted language appears in a known case and points Claude to where the match appears.

13

Source PDFs

Retrieves case opinion PDFs so the underlying source is easy to inspect, print, and share.

Ask Claude to use Descrybe.

A clear prompt helps Claude know when to call Descrybe Legal Engine for source-law search, citation lookup, quote verification, or treatment review.

Find primary law

"Use Descrybe Legal Engine to find primary-law cases on this issue in the relevant jurisdiction, then show me the sources I should read first."

Check a citation

"Use Descrybe Legal Engine to look up this citation, confirm the matching case, and summarize the case details I should verify."

Verify quoted language

"Use Descrybe Legal Engine to verify whether this quote appears in the cited case and show me the source passage."

Review later treatment

"Use Descrybe Legal Engine to check whether this case still appears to be good law and summarize the later treatment."

Understand the Legal Engine before you connect.

These guides explain what Descrybe adds to Claude and how to use it for legal research without losing the source trail.

What is Descrybe Legal Engine?

An overview of the legal research connector, how it works, and how it relates to the full Descrybe Platform.

Read the guide

Legal research inside Claude

A practical guide to using Claude with Descrybe Legal Engine while keeping citations, quotes, treatment, and sources visible.

Read the guide

Choose your Descrybe plan

Start with standalone Legal Engine access in Claude, or choose the full Descrybe Platform with Legal Engine access included.

New to Descrybe?

Choose a plan first so your account is set up with the right product access for Claude and the Descrybe Platform.