Brown University

Courses@Brown (Leepfrog CourseLeaf tenant)

Brown's course search and registration front end. It exposes a live, public, keyless JSON API at cab.brown.edu/api/ — a POST interface with page=fose routes for search and details that returned 393 course sections with CRNs, meeting times, instructors, enrolment caps and grade-mode options for a single keyword query on 2026-08-30. This is by some distance the richest machine-readable Brown data on the public internet, and it is not Brown's engineering: the host is a CourseLeaf tenant and the fose search interface is Leepfrog's product. Recorded as a tenant relationship; no CourseLeaf contract is saved under this slug. Brown operates no course or registrar API of its own — the student-built api.students.brown.edu that once did has been 404 since before this profile was written.

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Other Resources

🔗
CourseCatalog
https://cab.brown.edu/

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API entry from apis.yml

apis.yml Raw ↑ 
aid: brown:cab
name: Courses@Brown (Leepfrog CourseLeaf tenant)
description: 'Brown''s course search and registration front end. It exposes a live, public, keyless JSON
  API at cab.brown.edu/api/ — a POST interface with page=fose routes for search and details that returned
  393 course sections with CRNs, meeting times, instructors, enrolment caps and grade-mode options for
  a single keyword query on 2026-08-30. This is by some distance the richest machine-readable Brown data
  on the public internet, and it is not Brown''s engineering: the host is a CourseLeaf tenant and the
  fose search interface is Leepfrog''s product. Recorded as a tenant relationship; no CourseLeaf contract
  is saved under this slug. Brown operates no course or registrar API of its own — the student-built api.students.brown.edu
  that once did has been 404 since before this profile was written.'
humanURL: https://cab.brown.edu/
baseURL: https://cab.brown.edu/api/
tags:
- Course Catalog
- Registrar
- Student Information
properties:
- type: CourseCatalog
  url: https://cab.brown.edu/
x-operator: tenant
x-operator-basis: cab.brown.edu CNAMEs to brown-fs.courseleaf.com and on to brown-fs.courseleafaws.com,
  resolving to 18.221.164.147 (Amazon Technologies Inc., AT-88-Z). CourseLeaf is Leepfrog Technologies'
  product; the ?page=fose&route=search POST interface is theirs, deployed identically across their customer
  base.