The PlainSite Model Context Protocol
Law and finance,
inside your AI.
The complete PlainSite database — court cases, attorneys, judges, companies, patents, and more — available as a native tool inside Claude and ChatGPT.
Ask anything legal.
From a simple name search to deep docket analysis,
PlainSite helps find the answer.
Everything in the database.
Over 30 specialized tools covering every kind of legal research question.
Search & Discovery
Search by party name, case number, legal citation, patent number, attorney name, judge name, or any keyword. Automatic query-type detection routes your question to the right data source.
“Find all Apple v. Samsung cases”
Cases & Dockets
Export complete dockets as structured data for AI analysis. Read parties, attorneys, motion threads, and optionally the full OCR text of every filed document.
“Summarize the Theranos criminal case”
Attorneys & Firms
Look up any attorney by name and get their full profile: bar admissions, motion success rates, top judges, biggest clients, and recent case history.
“What’s John Smith’s win rate on motions to dismiss?”
Companies & Entities
Get full entity profiles including recent court activity, top outside counsel, editorial tags, SEC filings, and corporate family trees.
“How many lawsuits has Tesla been involved in?”
Courts & Judges
Search courts by state or name. See trending cases in any court right now, sitting judges, and the most frequent filers.
“Most active cases in the Southern District of New York?”
Patents & Trademarks
Look up USPTO patent and trademark assignments by patent number, application number, or reel/frame. Trace full assignment chains with party details.
“Who currently owns patent 5,123,456?”
Full-Text Search
Search the full text of filed documents and court opinions to find a specific argument, statute citation, or fact — without reading every filing. Results include highlighted passage snippets.
“Find briefs citing Iqbal arguing RICO pleading standards”
Statutes & Regulations
Browse bodies of law and retrieve individual statutes or regulations by citation. Covers federal and state codes.
“Pull up 18 U.S.C. § 1343”
Tags & Trends
PlainSite’s editorial tags cover topics like “Tesla Autopilot,” “Bitcoin,” and “Ineffective Assistance of Counsel.” Get docket counts and court-level breakdowns for any topic.
“Look up the ‘Tesla Autopilot’ tag”
Works with Claude and ChatGPT.
One URL. No configuration files. Set up in under a minute on either platform.
Claude
Available in Claude.ai and the Claude desktop app. Open Settings → Connectors → Add Custom Connector and paste the URL below.
https://ai.plainsite.org
The button above takes you directly to the Connectors screen in Claude.ai. Paste the URL and click Save.
ChatGPT
Available in ChatGPT and the ChatGPT desktop app. Open Settings → Connected Apps → Add Custom Connection and paste the URL below.
https://ai.plainsite.org
Open the ChatGPT app or chatgpt.com, go to Settings → Connected Apps, add a new connection, and paste the URL.
Free to try. More when you sign in.
No API keys. No separate accounts. Just your existing PlainSite Pro login — works identically in Claude and ChatGPT.
10 Free Requests
You get 10 free requests per day without signing in. That’s enough to try it out and see what it can do before committing to anything.
Sign In with Email
For unlimited access, tell your AI: “Authenticate with PlainSite using my email.” Your AI asks for your email address, PlainSite emails you a 6-character code, and you paste it back. No passwords.
PlainSite Pro
PlainSite Pro subscribers get additional data and features unlocked automatically when you sign in — in any supported AI.
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