Case Law Search

Search 9M+ court opinions and federal dockets.

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What it can do

  • Search Case Law: Search court opinions by keyword. Returns case names, citations, courts, and dates. Args: query: Legal search terms (e.g., "ERISA arbitrary capricious standard of review insurance den
  • Get Opinion: Get the full text of a court opinion by CourtListener cluster ID. Args: cluster_id: The CourtListener cluster ID (from search results)
  • Search Dockets: Search federal court dockets (RECAP archive) for active litigation. Args: query: Search terms (e.g., "UnitedHealthcare mental health parity class action") court: Court filter or "" for

What data it sees

Do you need an account

No: the server works without sign-in

Search 9M+ court opinions and federal dockets.

How to connect

How to connect Case Law Search to Claude

The server address to paste into Claude settings:

https://caselaw--alexandria-shai-eden.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Case Law Search to ChatGPT

The server address to paste into ChatGPT settings:

https://caselaw--alexandria-shai-eden.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Case Law Search to Cursor

The server address to paste into Cursor settings:

https://caselaw--alexandria-shai-eden.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (4)

Raw names from tools/list. Only developers need these.

search_case_lawSearch court opinions by keyword. Returns case names, citations, courts, and dates. Args: query: Legal search terms (e.g., "ERISA arbitrary capricious standard of review insurance denial") court: Court filter — "scotus", "all_appeals", "ca9", "ca5", "ca3", "ca7", or "" for all filed_after: Date filter YYYY-MM-DD (e.g., "2020-01-01") filed_before: Date filter YYYY-MM-DD cited_gt: Minimum citation count (use to find influential cases) max_results: Number of results (default 10, max 20)
get_opinionGet the full text of a court opinion by CourtListener cluster ID. Args: cluster_id: The CourtListener cluster ID (from search results)
search_docketsSearch federal court dockets (RECAP archive) for active litigation. Args: query: Search terms (e.g., "UnitedHealthcare mental health parity class action") court: Court filter or "" for all max_results: Number of results (default 10, max 20)
insurance_precedentFind influential insurance litigation precedent on a specific topic. Filters to frequently-cited appellate decisions for maximum authority. Args: topic: The legal issue (e.g., "arbitrary capricious standard ERISA", "mental health parity NQTL", "network adequacy Medicaid managed care") jurisdiction: "scotus", "all_appeals", "ca9", "ca5", "ca3", "ca7", or "" for all courts min_citations: Minimum citation count to filter for influential cases (default 5)