Business

Legal research: tools for AI agents

Search laws, cases and regulations. The best matches among the MCP servers, command-line tools, web APIs and Claude Code plugins AptLynx checks every night, working ones first.

MCP servers

• Eur Lex: cjeu_search Verified publisher · Working at last check
  Search EU COURT JUDGMENTS — the case law of the Court of Justice (CJEU) and the General Court — by subject. Returns the case, the court, the date and the…
• Cn Law: cn_search_admin_regulations Verified publisher · Working at last check
  Search mainland Chinese administrative regulations (行政法规) by title — a second official copy of the same regulations cn_search_laws covers, used here…
• Avokata: describe Verified publisher · Working at last check
  What this service holds and how complete it is: every source with its date, coverage per legal area with the thin ones named (Constitutional Court, CJEU,…
• io.github.TheNextGenNexus/legal-mcp-server Runs on your computer
  Search court records, patents, and trademarks for legal research
• Lahend: eu_law_search Working at last check
  Search EU regulations and directives, and Court of Justice / European Court of Human Rights judgments, by Estonian title or case number. The corpus is…
• Corpus Legal: law.search Verified publisher · Working at last check
  Searches US federal, state, and municipal law by topic or keyword (legality, permits, zoning, licensing, compliance, filing requirements). Returns ranked…
• Vaquill Verified publisher · Needs a sign-in or key
  Search US and Indian statutes, regulations, constitutions, and court rules.
• Roopslaw Legalsearch: roop.public.statutes.search Verified publisher · Working at last check
  Search public statutes and subordinate legislation metadata.
• Hasdata: hasdata_google_scholar_case_law_getScholarCaseLawOpinion Verified publisher · Working at last check
  Get Scholar Case Law Opinion Looks up a Google Scholar Case Law opinion by its `caseId` (as returned in a google/scholar organic result's `caseId`, when…
• Regulations Gov: search_documents Verified publisher · Working at last check
  Search Regulations.gov documents (proposed rules, final rules, notices). Filter values are CASE-SENSITIVE. Use exact casing: - document_type:…
• Uk Caselaw: list_uk_courts Verified publisher · Working at last check
  List the UK courts and tribunals covered by Find Case Law with the court code each one uses. Call this before narrowing search_uk_caselaw by court — a code…
• Memoryapi Legal: search_cases Verified publisher · Working at last check
  Search federal court opinions and cases via CourtListener / RECAP Archive. Filter by court, date, and case type.
• Swiss Caselaw: search_legislation Verified publisher · Working at last check
  Use this tool to find WHOLE LAWS by name or subject — 33,000+ federal and cantonal enactments from LexFind.ch; the entry point for cantonal questions…

Command-line tools

• ack
  Search tool like grep, but optimized for programmers
• pdfgrep
  Search PDFs for strings matching a regular expression
• bfs
  Breadth-first version of find
• the_platinum_searcher
  Multi-platform code-search similar to ack and ag
• luvit
  Asynchronous I/O for Lua
• lit
  Portable tool for LLVM- and Clang-style test suites

Web APIs

• BC Laws
  BC Laws is an electronic library providing free public access to the laws of British Columbia. BC Laws is hosted by the Queen's Printer of British Columbia…
• Regulations.gov
  Provides public users access to federal regulatory content.
• U.S. EPA Enforcement and Compliance History Online (ECHO) - Enforcement Case Search
  Enforcement and Compliance History Online (ECHO) is a tool developed and maintained by EPA's Office of Enforcement and Compliance Assurance for public use.…
• UniCourt Enterprise APIs
  Download UniCourt Enterprise APIs Specification open_data
• Andaman Law College, Andaman & Nicobar
  Transfer Certificate issued by Andaman Law College can be downloaded in citizen's DigiLocker account. open_data
• Transportation Laws and Incentives
  Query our database of federal and state laws and incentives for alternative fuels and vehicles, air quality, fuel efficiency, and other transportation-related…

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Listing text is written by each tool's maker; AptLynx lists tools and does not vouch for them.