Ohio State University

aid: ohio-state-university
name: Ohio State University
x-type: university
x-category: Public Research University
description: 'The Ohio State University is a large public land-grant research university in Columbus, Ohio, United States.
  It operates no central developer portal and publishes no OpenAPI, no API key programme and no developer documentation for
  any of its surfaces. What it does operate, verified live on 2026-09-01, is a small set of genuinely institution-run programmable
  surfaces: an unauthenticated JSON class-search and campus-events API at content.osu.edu/v2 that identifies itself as "OSU
  Mobile API v2" and backs the public class search at classes.osu.edu; a CKAN 2.10.10 open data portal at data.chrr.ohio-state.edu
  run by the Center for Human Resource Research, which mints its own DataCite DOIs under prefix 10.82271; and an institution-wide
  Shibboleth SAML 2.0 Identity Provider published in the InCommon Federation under entityID urn:mace:incommon:osu.edu with
  REFEDS Research and Scholarship and SIRTFI assurance. Everything else that looks like an Ohio State API is a vendor platform
  running under an Ohio State name: the Knowledge Bank repository is DSpace hosted by Atmire, library discovery is Ex Libris
  Primo, and the LMS is Instructure Canvas. Those tenancies are recorded here as relationships, not as Ohio State contracts.'
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ohio-state-university.png
url: https://raw.githubusercontent.com/api-evangelist/ohio-state-university/refs/heads/main/apis.yml
tags:
- University
- Higher Education
- Education
- United States
- Public Research University
- Course Catalog
- Open Data
- Research Data
- Institutional Repository
- Library
- Identity Federation
- Open Access
created: '2026-06-03'
modified: '2026-09-01'
specificationVersion: '0.23'
x-coverage:
  state: covered
  reason: covered
  detail: 'Ohio State turned out to operate more than the June 2026 profile credited it with, and less of what it was credited
    with is actually its own. Two institution-operated public APIs were found and verified this run and neither was previously
    catalogued: the OSU Mobile Content API v2 at content.osu.edu/v2 (class search and campus events, entirely unauthenticated,
    no published documentation — the paths were read out of the classes.osu.edu client bundle and then probed) and the CHRR
    CKAN 2.10.10 open data portal at data.chrr.ohio-state.edu. Ohio State''s own Shibboleth SAML IdP was confirmed in InCommon
    metadata. Against that, the Knowledge Bank surfaces already in this profile were re-graded from institution to tenant:
    kb.osu.edu is an Ohio State hostname that CNAMEs to osu-prod.cname.atmire.com, so DSpace and its hosting are Atmire''s
    engineering and only the repository content is Ohio State''s. Library discovery (search.library.osu.edu CNAME to primo.exlibrisgroup.com)
    and the LMS (osu.instructure.com) are tenancies added this run for completeness. No pricing, rate limit, status page,
    terms of service or support channel exists for any Ohio State API, because Ohio State does not run an API programme —
    it runs a handful of services that happen to answer in JSON.'
  generated: '2026-09-01'
  method: probed
  evidence:
  - url: https://content.osu.edu/v2
    status: 200
  - url: https://content.osu.edu/v2/classes/search?q=english&term=1268
    status: 200
  - url: https://content.osu.edu/v2/events
    status: 200
  - url: https://data.chrr.ohio-state.edu/api/3/action/status_show
    status: 200
  - url: https://mdq.incommon.org/entities/urn%3Amace%3Aincommon%3Aosu.edu
    status: 200
  - url: https://kb.osu.edu/server/api
    status: 200
  - url: https://kb.osu.edu/server/oai/request?verb=Identify
    status: 200
  - url: https://api.datacite.org/providers/gvuz
    status: 200
  - url: https://www.osu.edu/llms.txt
    status: 404
    note: No llms.txt on the institution's primary host.
  - url: https://www.osu.edu/.well-known/security.txt
    status: 404
    note: No security.txt on the institution's primary host.
  - url: https://cybersecurity.osu.edu/services/web-single-sign
    status: 301
    note: Pointer removed this run. The WebSSO service page carried in the June 2026 profile now 301s to the generic https://it.osu.edu/security
      landing page — a soft-404 for the claim, live for a status-code-only check. Replaced with the WebSSO FAQ at https://dst-docs.it.osu.edu/websso/public/faq.html,
      which is the real surviving surface.
apis:
- aid: ohio-state-university:mobile-content-api
  name: Ohio State Mobile Content API v2
  x-operator: institution
  x-operator-basis: content.osu.edu is on Ohio State's own registrable domain and CNAMEs to WH-prdosuedu132-VIP.it.ohio-state.edu
    (140.254.112.132), Ohio State's own address space. No vendor identity appears in the service root, the response envelopes
    or the DNS chain.
  description: Public, unauthenticated, read-only JSON API operated by Ohio State's Office of Technology and Digital Innovation.
    Serves academic term lists, full-text class search against Student Information System data, and the public campus events
    feed. It is the backend behind the public class search at classes.osu.edu and it names itself "OSU Mobile API v2" at its
    root. Ohio State publishes no documentation and no specification for it; the OpenAPI carried here was DERIVED from the
    published client bundle and live probes on 2026-09-01, and verified at 1,033 courses for Autumn 2026 and 153 campus events.
  humanURL: https://classes.osu.edu/
  baseURL: https://content.osu.edu/v2
  tags:
  - Course Catalog
  - Class Search
  - Events
  - Campus Life
  - Student Information System
  - REST
  properties:
  - type: OpenAPI
    url: openapi/ohio-state-university-mobile-content-api-openapi.yml
  - type: Examples
    url: examples/ohio-state-university-classes-search-example.json
  - type: Examples
    url: examples/ohio-state-university-classes-searchable-terms-example.json
  - type: Examples
    url: examples/ohio-state-university-campus-events-example.json
- aid: ohio-state-university:chrr-ckan
  name: CHRR Open Data Portal (CKAN)
  x-operator: institution
  x-operator-basis: data.chrr.ohio-state.edu resolves directly to 140.254.214.133, inside Ohio State's own netblock, with
    no vendor CNAME. The CKAN deployment carries Ohio-State-specific extensions (chrrpermissions, chrr_idatasetform, osubux)
    and federates login through Ohio State's own Shibboleth IdP via saml2auth.
  description: CKAN 2.10.10 open data portal operated by Ohio State's Center for Human Resource Research. The full CKAN Action
    API is public for read (status_show, package_list, package_show, datastore search) and currently publishes five datasets
    including the Consumer Finance Monthly survey series and historic voter files for all 50 states. The deployment mints
    its own DataCite DOIs under prefix 10.82271 through the registered repository gvuz.dcavye. The CKAN contract itself is
    CKAN's, not Ohio State's — what is Ohio State's is the deployment, the data and the DOI minting.
  humanURL: https://data.chrr.ohio-state.edu/
  baseURL: https://data.chrr.ohio-state.edu/api/3
  tags:
  - Open Data
  - CKAN
  - Research Data
  - DOI
  - DataCite
  properties:
  - type: Examples
    url: examples/ohio-state-university-chrr-ckan-package-list-example.json
  - type: Examples
    url: examples/ohio-state-university-chrr-ckan-status-example.json
  - type: Documentation
    url: https://chrr.osu.edu/
- aid: ohio-state-university:websso
  name: Web Single Sign-On (Shibboleth Identity Provider)
  x-operator: institution
  x-operator-basis: webauth.service.ohio-state.edu CNAMEs to webauth.lbext1.it.osu.edu (140.254.112.150), Ohio State's own
    infrastructure. The IdP software is Shibboleth (open source); the deployment, the identities and the attribute release
    are Ohio State's.
  description: Institution-wide web authentication and authorization operated by the Office of Technology and Digital Innovation
    on Shibboleth, supporting SAML 2.0 with Redirect and POST SSO/SLO bindings and SOAP ECP. Every SSO-protected Ohio State
    service probed in this run redirects here, including the Canvas LMS tenancy. Intended for registered campus and cloud
    service owners integrating as SAML service providers; there is no self-service SP registration and no open public consumption
    path.
  humanURL: https://dst-docs.it.osu.edu/websso/public/faq.html
  baseURL: https://webauth.service.ohio-state.edu/idp
  tags:
  - Identity
  - Authentication
  - SAML
  - Shibboleth
  - SSO
  - Identity Federation
  properties:
  - type: Documentation
    url: https://dst-docs.it.osu.edu/websso/public/faq.html
  - type: Authentication
    url: authentication/ohio-state-university-authentication.yml
- aid: ohio-state-university:incommon-idp-metadata
  name: InCommon Federation IdP Metadata
  x-operator: federation
  x-operator-basis: Federation metadata is shared by definition — mdq.incommon.org serves every InCommon member. The entity
    it serves at urn:mace:incommon:osu.edu is Ohio State's own Identity Provider, so the membership is a fact about Ohio State
    even though the host is not theirs.
  description: Ohio State's SAML 2.0 Identity Provider as published in the InCommon Federation metadata aggregate, retrievable
    per-entity over the InCommon MDQ service. The signed EntityDescriptor carries OrganizationName "The Ohio State University",
    the REFEDS Research and Scholarship entity category, SIRTFI assurance certification, InCommon's Registered-By-InCommon
    category, and the SSO/SLO/ECP endpoints on webauth.service.ohio-state.edu. Verified live 2026-09-01, application/samlmetadata+xml,
    9537 bytes.
  humanURL: https://spaces.at.internet2.edu/spaces/MDQ/overview
  baseURL: https://mdq.incommon.org/entities/urn%3Amace%3Aincommon%3Aosu.edu
  tags:
  - Identity Federation
  - InCommon
  - SAML
  - Shibboleth
  - Metadata
  properties:
  - type: Conformance
    url: conformance/ohio-state-university-conformance.yml
- aid: ohio-state-university:kb-rest
  name: Knowledge Bank DSpace REST API
  x-operator: tenant
  x-operator-basis: 'CNAME — kb.osu.edu resolves to osu-prod.cname.atmire.com, an Atmire-hosted DSpace tenancy. The hostname
    is Ohio State''s and the host rule reads it as institution-operated; the DNS chain says the software and the operations
    are Atmire''s. Recorded as a tenancy, not deleted: the repository, its 20-plus years of content and its Ohio State branding
    are real.'
  description: REST API for the Knowledge Bank, Ohio State University Libraries' DSpace 7.6 institutional repository. Exposes
    communities, collections, items and bitstreams as HAL JSON. Verified live 2026-09-01 returning dspaceName "The Knowledge
    Bank". The DSpace contract is DSpace's and the hosting is Atmire's; no DSpace specification is saved under Ohio State's
    slug.
  humanURL: https://library.osu.edu/kb
  baseURL: https://kb.osu.edu/server/api
  tags:
  - Library
  - Institutional Repository
  - DSpace
  - Open Access
  - REST
  properties:
  - type: Documentation
    url: https://library.osu.edu/kb
  - type: GitHub
    url: https://github.com/osulibraries/DSpaceOSUKB
- aid: ohio-state-university:kb-oai
  name: Knowledge Bank OAI-PMH Interface
  x-operator: tenant
  x-operator-basis: CNAME — kb.osu.edu resolves to osu-prod.cname.atmire.com. Same tenancy as the DSpace REST API above; the
    OAI-PMH implementation ships with DSpace.
  description: 'OAI-PMH 2.0 metadata harvesting endpoint for the Knowledge Bank institutional repository, supporting the standard
    verbs over Dublin Core and other formats. Verified live 2026-09-01: repositoryName "The Knowledge Bank", protocolVersion
    2.0, adminEmail libkbhelp@lists.osu.edu, earliestDatestamp 2003-07-11. The harvestable metadata is Ohio State''s; the
    protocol implementation is DSpace''s.'
  humanURL: https://library.osu.edu/kb/faqs
  baseURL: https://kb.osu.edu/server/oai/request
  tags:
  - Library
  - Institutional Repository
  - OAI-PMH
  - Metadata
  - Open Access
  properties:
  - type: Documentation
    url: https://library.osu.edu/kb/faqs
  - type: Conformance
    url: conformance/ohio-state-university-conformance.yml
- aid: ohio-state-university:primo-discovery
  name: Library Discovery (Ex Libris Primo VE)
  x-operator: tenant
  x-operator-basis: CNAME — search.library.osu.edu resolves to ohiolink-osu.primo.exlibrisgroup.com, an Ex Libris Primo VE
    instance in the OhioLINK consortium view 01OHIOLINK_OSU. Ohio State's hostname, Ex Libris's platform, OhioLINK's consortial
    tenancy.
  description: Library discovery for Ohio State University Libraries, delivered on Ex Libris Primo VE through the OhioLINK
    consortium (view 01OHIOLINK_OSU). Recorded as a tenancy because the collection and the institutional scope are Ohio State's;
    the Primo and Alma APIs belong to Ex Libris and are not saved here.
  humanURL: https://search.library.osu.edu/
  tags:
  - Library
  - Discovery
  - Primo
  - Ex Libris
  - OhioLINK
  properties:
  - type: Documentation
    url: https://library.osu.edu/
- aid: ohio-state-university:canvas-lms
  name: Canvas LMS Tenancy
  x-operator: tenant
  x-operator-basis: 'osu.instructure.com is an institution-specific subdomain on Instructure''s shared Canvas platform. Probed
    2026-09-01: it redirects to Ohio State''s own Shibboleth IdP for authentication, which is exactly the tenant shape — the
    institution''s identities on the vendor''s platform.'
  description: Ohio State's Canvas learning management system tenancy, branded Carmen. Canvas exposes an LTI-capable REST
    API, but that contract is Instructure's and every course-scoped call requires an Ohio State account, so nothing is saved
    under Ohio State's slug. Recorded because the tenancy is a real institutional fact and the SSO redirect evidences Ohio
    State's own IdP behind it.
  humanURL: https://osu.instructure.com/
  tags:
  - LMS
  - Canvas
  - Instructure
  - Teaching and Learning
  - SSO
- aid: ohio-state-university:datacite-membership
  name: DataCite Membership (GVUZ)
  x-operator: registry
  x-operator-basis: api.datacite.org is an identifier registry Ohio State is registered in, shared by every DOI-minting institution.
    The membership record is a fact about Ohio State; the registry's own contract is DataCite's and is not saved here.
  description: The Ohio State University is a DataCite direct member, provider symbol GVUZ, active, linked to ROR https://ror.org/00rs6vg23
    and created 2025-06-18. It operates one registered repository, gvuz.dcavye (CHRR CKAN Repository), minting DOIs under
    prefix 10.82271 against datasets published on Ohio State's own CKAN portal. Verified live 2026-09-01.
  humanURL: https://chrr.osu.edu/
  baseURL: https://api.datacite.org/providers/gvuz
  tags:
  - DOI
  - DataCite
  - Research Data
  - Registry
  - Persistent Identifiers
  properties:
  - type: Examples
    url: examples/ohio-state-university-datacite-provider-example.json
  - type: Conformance
    url: conformance/ohio-state-university-conformance.yml
- aid: ohio-state-university:crossref-membership
  name: Crossref Membership (member 7412)
  x-operator: registry
  x-operator-basis: api.crossref.org is an identifier registry Ohio State University Libraries is registered in. Membership
    recorded; the registry's contract is Crossref's.
  description: The Ohio State University Libraries is Crossref member 7412 with 4,927 registered DOIs, covering the journals
    and scholarly series the Libraries publishes. Verified live 2026-09-01 through the Crossref members API.
  humanURL: https://www.crossref.org/
  baseURL: https://api.crossref.org/members/7412
  tags:
  - DOI
  - Crossref
  - Scholarly Publishing
  - Registry
  - Persistent Identifiers
- aid: ohio-state-university:ror
  name: ROR Registration
  x-operator: registry
  x-operator-basis: ror.org is the Research Organization Registry, shared by every registered research organization. The record
    is a fact about Ohio State.
  description: The Ohio State University is registered in the Research Organization Registry as https://ror.org/00rs6vg23,
    the identifier DataCite's provider record for Ohio State points at. Separate ROR records exist for the Wexner Medical
    Center and the regional campuses, which is why organisation matching on name alone misattributes Ohio State surfaces.
  humanURL: https://ror.org/00rs6vg23
  baseURL: https://api.ror.org/organizations/00rs6vg23
  tags:
  - Registry
  - ROR
  - Persistent Identifiers
  - Research
common:
- type: Website
  url: https://www.osu.edu/
- type: Blog
  url: https://news.osu.edu/
- type: GitHubOrganization
  url: https://github.com/osulibraries
- type: LinkedIn
  url: https://www.linkedin.com/school/the-ohio-state-university/
- type: PrivacyPolicy
  url: https://it.osu.edu/privacy
- type: CourseCatalog
  url: https://classes.osu.edu/
- type: OpenData
  url: https://data.chrr.ohio-state.edu/
- type: ResearchRepository
  url: https://kb.osu.edu/
- type: LibraryCatalog
  url: https://search.library.osu.edu/
- type: IdentityFederation
  url: https://mdq.incommon.org/entities/urn%3Amace%3Aincommon%3Aosu.edu
- type: AIPolicy
  url: https://ohiostateresearch.knowledgebase.co/article/artificial-intelligence-40;ai-41;-in-research-guidelines-126.html
- type: AITooling
  url: https://ai.osu.edu/resources-buckeyes/approved-ai-tools
- type: Authentication
  url: authentication/ohio-state-university-authentication.yml
- type: Conformance
  url: conformance/ohio-state-university-conformance.yml
- type: DomainSecurity
  url: security/ohio-state-university-domain-security.yml
- type: Plans
  url: plans/ohio-state-university-plans-pricing.yml
- type: RateLimits
  url: rate-limits/ohio-state-university-rate-limits.yml
- type: FinOps
  url: finops/ohio-state-university-finops.yml
- type: Review
  url: review.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com