Purdue University

aid: purdue
name: Purdue University
x-type: university
x-category: Public Research University
description: 'Purdue University is a public land-grant research university in West Lafayette, Indiana, United States, a member
  of the Association of American Universities and the Big Ten Academic Alliance. Purdue operates no central developer portal,
  no API gateway and no self-service key issuance, and its programmable footprint is small, scattered across service units,
  and almost entirely undocumented. Four surfaces were confirmed institution-operated by live probe: the Rosen Center for
  Advanced Computing (RCAC) publishes its own OpenAPI 3.0 document at www.rcac.purdue.edu/api covering 206 paths and 452 operations
  behind Purdue Web Authentication; Housing and Food Services runs an open, keyless dining menus API at api.hfs.purdue.edu/menus/v2;
  the Purdue University Research Repository exposes an OAI-PMH 2.0 endpoint at purr.purdue.edu/oaipmh; and Purdue runs its
  own Shibboleth identity provider, registered in InCommon, whose SAML 2.0 metadata is public. Three further surfaces are
  recorded as tenant relationships, not Purdue engineering - Purdue e-Pubs on bepress Digital Commons, the events calendar
  on Localist, and the community-built Purdue.io course-catalog API, which runs on a privately registered domain and DigitalOcean
  hosting with no evidence of institutional operation or endorsement. The Purdue Libraries API host resolves but has served
  only a placeholder page since at least June 2026.'
type: Index
tags:
- University
- Higher Education
- Education
- United States
- Indiana
- Public Research University
- Land-Grant University
- Association of American Universities
- Big Ten Academic Alliance
- Research Computing
- Research Repository
- Identity Federation
- OAI-PMH
- Campus Life
- Course Catalog
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/purdue.png
url: https://raw.githubusercontent.com/api-evangelist/purdue/refs/heads/main/apis.yml
created: '2026-06-03'
modified: '2026-08-30'
specificationVersion: '0.23'
deliveryModel:
  model: self-operated
  open_source: false
  commercial: false
  callable_host: true
  label: Institution-operated endpoints - you call Purdue's own hosts
  confidence: high
  source:
  - openapi
  - probe
  generated: '2026-08-30'
  method: probed
accessModel:
  pricing: free
  onboarding: institutional-affiliation
  trial: false
  try_now: true
  public: partial
  label: Free - one keyless surface, the rest gated by Purdue institutional identity
  confidence: high
  source:
  - probe
  generated: '2026-08-30'
  method: probed
x-enrichment:
  pipeline: pipeline-university
  run: '2026-08-30'
  note: Re-profiled under the university pipeline's operator axis. The June 2026 profile credited Purdue with ten separate
    APIs that were one community-built third-party OData contract split by tag; those entries and every artifact derived from
    that contract were removed, and the relationship is retained as a single tenant entry. Two genuinely institution-operated
    contracts were found and added.
x-coverage:
  state: covered
  reason: covered
  detail: 'Four institution-operated surfaces were confirmed by live probe and two contracts are now held in this repository
    - Purdue''s own RCAC OpenAPI, fetched from the institution''s host, and a dining menus contract generated from keyless
    live probes because Housing and Food Services publishes none. Coverage is nonetheless partial by Purdue''s choice, not
    by ours: there is no developer portal, no API index, no published documentation for the dining API, no self-service credential
    issuance, and the RCAC endpoints answer an unauthenticated request with a 500 and an HTML login page. Three surfaces that
    previously read as Purdue''s are recorded as tenant relationships instead. The Purdue Libraries API host returns 200 on
    a placeholder body and is recorded as dead, not as a surface.'
  generated: '2026-08-30'
  method: probed
  evidence:
  - url: https://www.rcac.purdue.edu/api
    status: 200
    note: Purdue's own OpenAPI 3.0.0 document, 206 paths / 452 operations, application/json.
  - url: https://www.rcac.purdue.edu/api/groups
    status: 500
    note: Purdue Web Authentication HTML login page returned in place of a 401.
  - url: https://api.hfs.purdue.edu/menus/v2/locations
    status: 200
    note: Keyless 35,766-byte JSON locations document.
  - url: https://api.hfs.purdue.edu/menus/v2/locations/Earhart/2026-08-30
    status: 200
    note: Keyless daily menu with stations, items, allergens and nutrition flags.
  - url: https://purr.purdue.edu/oaipmh?verb=Identify
    status: 200
    note: Valid OAI-PMH 2.0 Identify, repositoryName Purdue University Research Repository.
  - url: https://sso.purdue.edu/idp/shibboleth
    status: 200
    note: SAML 2.0 IdP metadata for entityID https://idp.purdue.edu/idp/shibboleth.
  - url: https://mdq.incommon.org/entities/https%3A%2F%2Fidp.purdue.edu%2Fidp%2Fshibboleth
    status: 200
    note: Signed InCommon metadata, OrganizationName "Purdue University Main Campus".
  - url: https://api.datacite.org/providers/purdue
    status: 200
    note: Purdue University West Lafayette, DataCite direct_member, active since 2010.
  - url: https://docs.lib.purdue.edu/do/oai/?verb=Identify
    status: 200
    note: Purdue e-Pubs OAI-PMH. CNAME dlpurdue.bepress.com, adminEmail dc-support@elsevier.com - tenant, not institution
      engineering.
  - url: https://events.purdue.edu/api/2/events
    status: 200
    note: CNAME purdue.enterprise.localist.com, response header x-slzr-platform purdue - tenant on the Localist platform.
  - url: https://api.purdue.io/odata/
    status: 200
    note: Live, but 167.71.242.113 is DigitalOcean and purdue.io is privately registered through Porkbun to "Private by Design,
      LLC" - not Purdue infrastructure and not a Purdue domain.
  - url: https://api.lib.purdue.edu/
    status: 200
    note: 'Soft-200 placeholder: body reads "Libraries API documentation goes here..." - dead.'
  - url: https://api.purdue.edu/
    status: 0
    note: Does not resolve. There is no institutional API host.
  - url: https://developer.purdue.edu/
    status: 0
    note: Does not resolve. There is no developer portal.
  - url: https://data.purdue.edu/
    status: 0
    note: Does not resolve. No institutional open data portal was found.
apis:
- aid: purdue:purdue-rcac-api
  name: Purdue RCAC API
  x-operator: institution
  description: The Rosen Center for Advanced Computing publishes its own OpenAPI 3.0.0 description at www.rcac.purdue.edu/api
    - 206 paths and 452 operations covering research computing groups and their members, departments and fields of science,
    course allocations and enrollments, staff contact reports, and the RCAC service finder with its facets and facet tree.
    This is Purdue's own software on Purdue's own host (www.rcac.purdue.edu -> web.rcac.purdue.edu, 128.211.157.46), and it
    is the single largest institution-authored machine-readable artifact found anywhere in this profile. The contract is public;
    the endpoints are not - an unauthenticated call returns 500 with a Purdue Web Authentication login page, and the declared
    api_token apiKey header has no documented self-service issuance. Declared version is 0.0.1 with no stability, deprecation
    or changelog statement.
  humanURL: https://www.rcac.purdue.edu/
  baseURL: https://www.rcac.purdue.edu/api
  tags:
  - Research Computing
  - HPC
  - Allocations
  - Institution-Operated
  properties:
  - type: OpenAPI
    url: openapi/purdue-rcac-api-openapi.yml
  - type: OpenAPIOriginal
    url: openapi/_original/purdue-rcac-api.json
  - type: APIReference
    url: https://www.rcac.purdue.edu/api
  - type: Documentation
    url: https://www.rcac.purdue.edu/knowledge
  - type: Support
    url: https://www.rcac.purdue.edu/help
  - type: Authentication
    url: authentication/purdue-authentication.yml
  - type: Errors
    url: errors/purdue-errors.yml
  - type: Lifecycle
    url: lifecycle/purdue-lifecycle.yml
  - type: Rules
    url: rules/purdue-openapi-spectral-rules.yml
  - type: Vocabulary
    url: vocabulary/purdue-vocabulary.yml
- aid: purdue:purdue-hfs-dining-menus-api
  name: Purdue HFS Dining Menus API
  x-operator: institution
  description: A public, keyless HTTP API operated by Purdue University Housing and Food Services at api.hfs.purdue.edu, serving
    dining-court locations, published daily menus by location and date, and per-item nutrition and allergen data. The host
    is Purdue's own web infrastructure (CNAME wpvwebasp03-01.www.purdue.edu, 128.210.7.106) and the service identifies itself
    as Purdue.Hfs.Menus.Domain in its own error stack traces, so this is Purdue software on Purdue servers rather than a vendor
    platform behind a Purdue hostname. HFS publishes no documentation, no OpenAPI, no terms of use and no rate limit; the
    contract in this repository was written from live probes and is marked generated accordingly.
  humanURL: https://dining.purdue.edu/
  baseURL: https://api.hfs.purdue.edu/menus/v2
  tags:
  - Campus Life
  - Dining
  - Nutrition
  - Institution-Operated
  - Keyless
  properties:
  - type: OpenAPI
    url: openapi/purdue-hfs-dining-menus-api-openapi.yml
  - type: JSONSchema
    url: json-schema/purdue-hfs-location-schema.json
  - type: JSONSchema
    url: json-schema/purdue-hfs-location-menu-schema.json
  - type: Examples
    url: examples/purdue-hfs-locations-example.json
  - type: Examples
    url: examples/purdue-hfs-location-menu-example.json
  - type: Errors
    url: errors/purdue-errors.yml
  - type: Authentication
    url: authentication/purdue-authentication.yml
  - type: Website
    url: https://www.housing.purdue.edu/
- aid: purdue:purr-oaipmh
  name: PURR OAI-PMH Metadata API
  x-operator: institution
  description: The Purdue University Research Repository exposes an OAI-PMH 2.0 endpoint for harvesting research dataset metadata,
    supporting the standard verbs (Identify, ListSets, ListMetadataFormats, ListIdentifiers, ListRecords, GetRecord) with
    the oai_dc Dublin Core prefix. Confirmed live on 2026-08-30 via Identify and ListSets. purr.purdue.edu is on Purdue's
    own netblock and the Identify response names a purdue.edu administrator, so the endpoint is institution-operated even
    though PURR runs on HUBzero - which itself originated at Purdue. Purdue mints DataCite DOIs for this repository as a direct
    DataCite member.
  humanURL: https://purr.purdue.edu/kb/finduse/oaipmh
  baseURL: https://purr.purdue.edu/oaipmh
  tags:
  - Research Repository
  - OAI-PMH
  - Research Data
  - Metadata
  - Institution-Operated
  properties:
  - type: Documentation
    url: https://purr.purdue.edu/kb/finduse/oaipmh
  - type: ResearchRepository
    url: https://purr.purdue.edu/
  - type: Examples
    url: examples/purdue-purr-oaipmh-identify-example.xml
  - type: Conformance
    url: conformance/purdue-conformance.yml
- aid: purdue:purdue-shibboleth-idp
  name: Purdue Shibboleth Identity Provider
  x-operator: institution
  description: Purdue operates its own Shibboleth identity provider, entityID https://idp.purdue.edu/idp/shibboleth, with
    SAML 2.0 SSO endpoints under sso.purdue.edu. The IdP is registered in InCommon and therefore reachable through eduGAIN;
    its metadata is served publicly and unauthenticated from Purdue's own host and signed from the InCommon metadata query
    service, where the entity carries OrganizationName "Purdue University Main Campus". This is the most defensible institution-operated
    machine-readable surface Purdue publishes - it is institution-run by definition, it is a standard the education regime
    names, and it is almost never catalogued.
  humanURL: https://incommon.org/federation/
  baseURL: https://sso.purdue.edu/idp
  tags:
  - Identity Federation
  - SAML
  - Shibboleth
  - InCommon
  - eduGAIN
  - Institution-Operated
  properties:
  - type: IdentityFederation
    url: https://sso.purdue.edu/idp/shibboleth
  - type: Metadata
    url: https://mdq.incommon.org/entities/https%3A%2F%2Fidp.purdue.edu%2Fidp%2Fshibboleth
  - type: Examples
    url: examples/purdue-shibboleth-idp-metadata-example.xml
  - type: Conformance
    url: conformance/purdue-conformance.yml
  - type: Authentication
    url: authentication/purdue-authentication.yml
- aid: purdue:purdue-epubs-oaipmh
  name: Purdue e-Pubs OAI-PMH (bepress Digital Commons tenant)
  x-operator: tenant
  description: Purdue e-Pubs is the university's institutional repository for scholarly output, reachable at docs.lib.purdue.edu
    with a working OAI-PMH 2.0 endpoint. The content, the collections and the scholarship are Purdue's; the platform is not.
    docs.lib.purdue.edu is a CNAME to dlpurdue.bepress.com and the Identify response names dc-support@elsevier.com as the
    repository administrator, so this is a bepress Digital Commons tenancy under a Purdue hostname. Recorded as a relationship.
    No bepress contract is stored under this institution - that contract belongs in bepress's own profile, not Purdue's.
  humanURL: https://docs.lib.purdue.edu/
  baseURL: https://docs.lib.purdue.edu/do/oai/
  tags:
  - Research Repository
  - OAI-PMH
  - Institutional Repository
  - Tenant
  - bepress Digital Commons
  properties:
  - type: ResearchRepository
    url: https://docs.lib.purdue.edu/
  - type: Conformance
    url: conformance/purdue-conformance.yml
- aid: purdue:purdue-events-api
  name: Purdue Events Calendar API (Localist tenant)
  x-operator: tenant
  description: Purdue's public events calendar at events.purdue.edu serves a live JSON events API on the Localist v2 contract.
    The events are Purdue's; the API is Localist's. events.purdue.edu is a CNAME chain to purdue.enterprise.localist.com and
    the responses carry the vendor's own x-slzr-platform header set to "purdue" - a textbook institution-branded tenancy.
    Recorded as a relationship; Localist's generic contract is not stored under this institution. Note that calendar.purdue.edu
    is a separate Purdue-hosted page and does not serve this API.
  humanURL: https://events.purdue.edu/
  baseURL: https://events.purdue.edu/api/2/events
  tags:
  - Campus Life
  - Event
  - Calendar
  - Tenant
  - Localist
  tags_raw:
  - Campus Life
  - Events
  - Calendar
  - Tenant
  - Localist
  properties:
  - type: Website
    url: https://events.purdue.edu/
- aid: purdue:purdueio-course-catalog-api
  name: Purdue.io Course Catalog API (community-built, third-party)
  x-operator: tenant
  description: Purdue.io is an OData v4 API over Purdue's course catalog, started in 2015 as a Computer Science senior design
    project and still maintained by its community. It is genuinely useful and genuinely about Purdue, but it is not Purdue's
    engineering and by every check it is not Purdue's operation - api.purdue.io resolves to 167.71.242.113 on DigitalOcean
    rather than Purdue's 128.210/128.211 netblocks, purdue.io is privately registered through Porkbun to "Private by Design,
    LLC" in North Carolina rather than to the university, the code is MIT-licensed under the independent Purdue-io GitHub
    organization, and no institutional endorsement was found. The June 2026 profile of this repository recorded this single
    contract as ten separate Purdue APIs, one per tag, and credited Purdue with every schema, collection, example, rule and
    vocabulary derived from it; all of that has been removed and the relationship kept as this one entry. Purdue's own registrar
    catalog is a separate, non-programmable surface at catalog.purdue.edu.
  humanURL: https://github.com/Purdue-io/PurdueApi
  baseURL: https://api.purdue.io/odata
  tags:
  - Course Catalog
  - OData
  - Community-Built
  - Third Party
  - Unaffiliated
  tags_raw:
  - Course Catalog
  - OData
  - Community-Built
  - Third-Party
  - Unaffiliated
  properties:
  - type: Documentation
    url: https://github.com/Purdue-io/PurdueApi/wiki
  - type: GitHub
    url: https://github.com/Purdue-io
  - type: Website
    url: https://purdue.io/
common:
- type: Website
  url: https://www.purdue.edu/
- type: GitHubOrganization
  url: https://github.com/Purdue
- type: LinkedIn
  url: https://www.linkedin.com/school/purdue-university/
- type: ResearchComputing
  url: https://www.rcac.purdue.edu/
- type: ResearchRepository
  url: https://purr.purdue.edu/
- type: IdentityFederation
  url: https://sso.purdue.edu/idp/shibboleth
- type: CourseCatalog
  url: https://catalog.purdue.edu/
- type: AIPolicy
  url: https://www.purdue.edu/ai/ai-governance-and-review/
- type: AITooling
  url: https://www.purdue.edu/ai/enterprise-ai-toolkit/
- type: PrivacyPolicy
  url: https://www.purdue.edu/purdue/about/privacy-notice.php
- type: TermsOfService
  url: https://www.purdue.edu/home/disclaimer/
- type: Support
  url: https://www.rcac.purdue.edu/help
- type: Blog
  url: https://www.purdue.edu/newsroom/
- type: Documentation
  url: https://www.rcac.purdue.edu/knowledge
- type: APIReference
  url: https://www.rcac.purdue.edu/api
- type: Authentication
  url: authentication/purdue-authentication.yml
- type: Errors
  url: errors/purdue-errors.yml
- type: Conformance
  url: conformance/purdue-conformance.yml
- type: Lifecycle
  url: lifecycle/purdue-lifecycle.yml
- type: Rules
  url: rules/purdue-openapi-spectral-rules.yml
- type: Vocabulary
  url: vocabulary/purdue-vocabulary.yml
- type: DomainSecurity
  url: security/purdue-domain-security.yml
- type: Plans
  url: plans/purdue-plans-pricing.yml
- type: RateLimits
  url: rate-limits/purdue-rate-limits.yml
- type: FinOps
  url: finops/purdue-finops.yml
- type: Review
  url: review.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com