@pipeworx/cali-elangdell

Connect: https://gateway.pipeworx.io/cali-elangdell/mcp · Install: one-click buttons

Tools: 3

CALI eLangdell Press’s free, Creative Commons-licensed US law-school casebooks and course materials: 62 titles (torts, contracts, constitutional law, evidence, civil procedure, tax, legal research, property, criminal law …) with authors, topics, PDF/EPUB/Word download links on cali.org, and the exact licence read from each book’s own front matter.

Tools

• elangdell_titles(topic?, license?, limit?) — the catalogue, filterable by a topic word or a licence id/prefix; every response carries titles_by_license so the licence mix is visible.
• elangdell_search(query, limit?) — titles by words in the title, an author name or the description.
• elangdell_book(slug) — one title in full: downloads, suggested attribution, and the per-title licence as the license envelope.

Auth

Keyless. The pack serves from a curated allowlist (src/titles.ts); it makes no upstream call. Downloads link to CALI’s own files.

Licence — the allowlist is the compliance story

Licence varies per title, and the bookstore pages do not say which: the only statement is inside each book. src/titles.ts was generated on 2026-09-14 by reading the front matter of every title on https://www.cali.org/the-elangdell-bookstore (64 listed): the EPUB where there is one, else the PDF, else the Word file. Each row records the file the licence was read from and the book’s own “Suggested attribution format” line.

Two of the 64 are deliberately not listed (NOT_LISTED in titles.ts, with the reason): Civil Procedure: Pleading (2014), whose EPUB, PDF and Word files contain no Creative Commons statement at all, and CALI Lessons: A Guidebook…, which has no downloadable file. Where a file names more than one licence — cover-art and photo credits under other CC terms, or an EPUB metadata field left over from a prior edition — the row takes the licence in the book’s own “This work … is licensed and published by CALI eLangdell Press under a Creative Commons …” sentence and says so in license_resolution.

Two things the brief assumed that the books contradict: Sources of American Law is BY-NC-SA 4.0 in its current (8th) edition, not BY-SA; the six BY-SA titles are Torts: Cases and Contexts vols 1–2 (4.0), Distance Learning in Legal Education (4.0), and three Evidence titles by Colin Miller (3.0: Rule 404, Rule 410, Selected Materials on the Law of Evidence).

Consequences (fleet #1974, decision #1973):

• zeroRated: true on the gateway entry — 0 credits on every tier — because the NonCommercial titles forbid charging. The BY-SA rows would not need it; requires_zero_rating on elangdell_book says which.
• Every response leads with attribution, license and license_note via attachLicense in @pipeworx/shared; list responses carry the strictest terms any row has (BY-NC-SA), elangdell_book carries the title’s own.
• Nothing is ingested: no book text is retained, only the catalogue rows.

Data sources

• https://www.cali.org/the-elangdell-bookstore?page=0..2 — the catalogue (28 cards per page, three pages, some titles repeated across pages).
• https://www.cali.org/books/{slug} — a title’s page: description, topics, field--name-field-ebook-downloads links. The book pages answer a browser User-Agent with an Anubis proof-of-work challenge (a JavaScript bot wall); they answer an honest non-browser UA such as PipeworxBot/1.0 (+https://pipeworx.io) directly. The pack does not fetch them at all; the survey did, one page at a time with a 1.5 s pause.
• https://www.cali.org/sites/default/files/… — the EPUB/PDF/DOCX files, no wall. The licence statement is in the OPF dc:rights field and the “Notices” page; when the two disagree the Notices page is the one that names the edition.

Tools

• elangdell_titles — List the free CALI eLangdell Press law-school casebooks and course materials (torts, contracts, constitutional law, evidence, civil procedure, tax, legal research, property, criminal law …) with autho
• elangdell_search — Search the CALI eLangdell open casebook catalogue by words in a title, an author name or the description (e.g. “Witt torts”, “income tax individuals”, “legal research”). Returns matching titles with a
• elangdell_book — One CALI eLangdell title in full: authors, description, topics, the PDF / EPUB / Word download links on cali.org, and the exact Creative Commons licence and suggested attribution read from the book’s