specification: API Commons Plans
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/Plans
provider: Tongji University
providerId: tongji
created: '2026-06-03'
modified: '2026-09-01'
reconciled: true
tags:
- Education
- Higher Education
- University
- Plans
description: 'Tongji University is a non-commercial higher-education institution and its Open Platform
  is not sold. There is no price on any tier and no commercial plan of any kind. Access is granted by
  institutional standing, not by payment: thirteen reference-metadata interfaces are open to anyone with
  no credential and no registration, and every other interface requires a faculty or student application
  to the Information Office, approved per application, which issues a client_id, a client_secret and a
  fixed set of OAuth scopes.'
notes: No per-seat, per-call or tiered commercial pricing exists. "Free / Open" reflects the thirteen
  anonymously callable interfaces confirmed live on 2026-09-01. "Institutional application" reflects everything
  else, which is gated on affiliation and approval rather than on money. Higher rate limits are also granted
  by request rather than purchase.
sources:
- https://api.tongji.edu.cn/docs/intro/apply/teacher_apply
- https://api.tongji.edu.cn/docs/intro/apply/student_apply
- https://api.tongji.edu.cn/docs/intro/develop/limit
plans:
- id: tongji-free-open
  name: Free / Open
  type: free
  description: The thirteen reference-metadata interfaces documented as 无需授权可直接访问. No credential, no registration,
    no charge. Confirmed callable 2026-09-01.
  entries:
  - label: Anonymous Reference Metadata
    name: anonymous_reference_metadata
    type: free
    metric: requests
    limit: 50
    timeFrame: second
    geo: global
    unit: 1
    price: '0.00'
    userMultiplied: false
- id: tongji-institutional-application
  name: Institutional Application
  type: free
  description: Every other interface. Requires a faculty or student application to the Tongji University
    Information Office; approval issues a client_id, client_secret and a scoped grant. Free of charge,
    gated on affiliation.
  entries:
  - label: Approved Application Access
    name: approved_application_access
    type: free
    metric: requests
    limit: 50
    timeFrame: second
    geo: global
    unit: 1
    price: '0.00'
    userMultiplied: false
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
generated: '2026-09-01'
method: searched
source: https://api.tongji.edu.cn/docs/intro/apply/teacher_apply and .../student_apply (HTTP 200, 2026-09-01),
  plus live confirmation that thirteen reference-metadata interfaces answer without a credential. Replaces
  the 2026-06-03 text, which described free access to "library, repository, course, and open-metadata
  interfaces" — no library, repository or course API is publicly callable, and no institutional repository
  exists.
x-operator: institution