Chulalongkorn University

Chulalongkorn University Meta API

Service metadata

GitHub OpenAPI

Operations 1

GET /version Deployed build version of the course schedule service #

Documentation

📖
Documentation
https://account.it.chula.ac.th/wiki/doku.php
📖
APIReference
https://account.it.chula.ac.th/wiki/doku.php?id=how_does_it_work
📖
Authentication
https://raw.githubusercontent.com/api-evangelist/chulalongkorn/refs/heads/main/authentication/chulalongkorn-authentication.yml

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/chulalongkorn/refs/heads/main/openapi/chulalongkorn-meta-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/chulalongkorn/refs/heads/main/json-schema/chulalongkorn-sso-user-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/chulalongkorn/refs/heads/main/json-schema/chulalongkorn-course-study-schema.json

Other Resources

🔗
Examples
https://raw.githubusercontent.com/api-evangelist/chulalongkorn/refs/heads/main/examples/chulalongkorn-sso-servicevalidation-example.json
🔗
SourceCode
https://github.com/krerk/ChulaSSO.Android
🔗
CourseCatalog
https://cas.reg.chula.ac.th/class/course-schedule
🔗
Examples
https://raw.githubusercontent.com/api-evangelist/chulalongkorn/refs/heads/main/examples/chulalongkorn-course-studies-example.json

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OpenAPI Specification

chulalongkorn-meta-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: CU-REG Course Schedule Meta API
  version: 2026.8.21-1644-1a51328
  description: The read-only JSON API behind CU-REG Course Schedule, the public course, curriculum and class-timetable browser operated by the Office of the Registrar, Chulalongkorn University, at https://cas.reg.chula.ac.th/class/course-schedule.
  contact:
    name: Office of the Registrar, Chulalongkorn University
    url: https://www.reg.chula.ac.th/
  x-provenance:
    generated: '2026-09-01'
    method: probed
    source: https://cas.reg.chula.ac.th/class/api/
    authored_by: API Evangelist
    note: Endpoint names read from the application bundle at https://cas.reg.chula.ac.th/class/main-STPCQOCS.js (HTTP 200), then each one fetched. Schemas below are inferred from the 50-record response body actually returned by GET /class/api/course-studies (HTTP 200, 43,377 bytes), archived at examples/chulalongkorn-course-studies-example.json.
servers:
- url: https://cas.reg.chula.ac.th/class/api
  description: Production CU-REG Course Schedule backend
tags:
- name: Meta
  description: Service metadata
paths:
  /version:
    get:
      tags:
      - Meta
      operationId: getVersion
      summary: Deployed build version of the course schedule service
      responses:
        '200':
          description: Build identifier.
          content:
            application/json:
              schema:
                type: object
                properties:
                  version:
                    type: string
                    description: Build stamp, formatted YYYY.M.D-HHMM-<commit>.
                required:
                - version
              example:
                version: 2026.8.21-1644-1a51328
x-client-declared-endpoints:
  note: Declared by the Angular client against the same base URL and observed returning HTTP 404 to an unauthenticated external request on 2026-09-01. Listed so the gap is recorded, not so it can be mistaken for a documented contract.
  probed: '2026-09-01'
  endpoints:
  - path: /course
    status: 404
  - path: /course-detail
    status: 404
  - path: /course-header
    status: 404
  - path: /course-group
    status: 404
  - path: /course-group-detail
    status: 404
  - path: /course-description
    status: 404
  - path: /class-day
    status: 404
  - path: /class-time
    status: 404
  - path: /exam-date
    status: 404
  - path: /faculty
    status: 404
  - path: /general-education
    status: 404
  - path: /instructor
    status: 404
  - path: /year-semester
    status: 404