# CU Directory of Classes

**Canonical:** https://apis.io/apis/columbia/directory-of-classes/  
**Provider:** Columbia University — https://apis.io/providers/columbia/  
**Documentation:** https://doc.sis.columbia.edu/

CU Directory of Classes is one of 10 APIs that [Columbia University](https://apis.io/providers/columbia/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Courses, Course Catalog, Directory, Registrar, and HTML Only. The published artifact set on APIs.io includes API documentation.

The public web directory of Columbia University class offerings, browsable by subject, department, semester, instruction method, weekday and start time. Live and fully readable, and HTML only — there is no documented API, no JSON feed and no machine-readable expression of Columbia's course vocabulary published by the university anywhere. The registrar's own Vergil course search sits behind the Cloudflare challenge. Recorded because course catalog is one of the surface classes a university genuinely operates, and Columbia operates this one without a contract. Third-party projects crawl this directory and republish it as JSON; those are not Columbia's and are deliberately not linked here as Columbia's.

## Machine-readable artifacts (1)

- **Documentation** — https://doc.sis.columbia.edu/

## Other Columbia University APIs (9)

- [Columbia University Libraries Hours API](https://apis.io/apis/columbia/library-hours/)
- [Columbia Identity — Shibboleth IdP and CAS](https://apis.io/apis/columbia/identity/)
- [CLIO Library Catalog Open Data](https://apis.io/apis/columbia/clio-opendata/)
- [Columbia Open Data Service](https://apis.io/apis/columbia/opendata/)
- [Columbia Academic Commons](https://apis.io/apis/columbia/academic-commons/)
- [Digital Library Collections and the 10.7916 DOI namespace](https://apis.io/apis/columbia/dlc/)
- [IRI/LDEO Climate Data Library](https://apis.io/apis/columbia/iri-data-library/)
- [CourseWorks (Instructure Canvas)](https://apis.io/apis/columbia/courseworks/)
- [Columbia University Data Platform (Redivis)](https://apis.io/apis/columbia/redivis/)

## Tags

Courses, Course Catalog, Directory, Registrar, HTML Only, No API

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/columbia/directory-of-classes/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/columbia/.