Johns Hopkins University is a private research university in Baltimore, Maryland, founded in 1876 and ranked #21 in the QS World University Rankings 2026. Its programmable footprint is small but real and, unusually for this cohort, it is genuinely its own: Johns Hopkins operates three APIs on hosts under its own registrable domains and publishes two live machine-readable identity artifacts. The Hub API (api.hub.jhu.edu) serves news, announcements, events, photo galleries and faculty experts from the Hub database across fifteen resource families, and the Self-Service Public Course Search API (sis.jhu.edu/api) returns course catalog data as JSON; both are documented in public but issue keys only to Johns Hopkins affiliates. A MuleSoft Anypoint portal at api.jh.edu fronts integration APIs and is gated entirely. Beyond those, the institution runs a Shibboleth SAML 2.0 identity provider whose metadata it publishes itself at login.jh.edu and which is registered in the InCommon Federation with Research and Scholarship and SIRTFI attributes; Project MUSE, operated by Johns Hopkins University Press, answers OAI-PMH 2.0 over 897,938 harvestable records with no authentication at all — the only fully open machine-readable surface the university has. The Johns Hopkins Research Data Repository (archive.data.jhu.edu) is Dataverse software administered by JHU Data Services, and the university's research portal at pure.johnshopkins.edu is an Elsevier Pure tenancy: both hold Johns Hopkins data, and neither contract is Johns Hopkins engineering. No central public developer portal, no changelog, no deprecation policy and no working status page exist for any of it.
Johns Hopkins University publishes 3 APIs on the APIs.io network: JHU Hub API, SIS Classes API, and SIS Codes API. Tagged areas include University, Higher Education, Education, United States, and Private Research University.
The Johns Hopkins University catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
Johns Hopkins University’s developer surface includes API reference, documentation, GitHub presence, engineering blog, authentication, and 21 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Education & Research regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
REST API over the Hub database, the central repository of news articles, announcements, photo galleries, faculty experts and events at Johns Hopkins. Built to power hub.jhu.edu ...
Course and section lookup and advanced search against the Self-Service Public Course Search API, which returns the Johns Hopkins course catalog as JSON. Filterable by school, de...
Reference code lists — schools, terms and departments — from the Self-Service Public Course Search API. The lookup vocabulary that makes the Classes API's filters usable. Requir...
Central API management platform built on MuleSoft Anypoint, where Johns Hopkins developers and consumers view and request access to enterprise integration APIs. The portal answe...
Johns Hopkins operates its own Shibboleth SAML 2.0 identity provider and publishes the entity metadata itself at login.jh.edu, scoped to johnshopkins.edu and jh.edu. The same id...
Project MUSE, operated by Johns Hopkins University Press, exposes an OAI-PMH 2.0 harvesting endpoint that answers Identify, ListMetadataFormats, ListSets and ListRecords with no...
Institutional research data repository at archive.data.jhu.edu, administered by Johns Hopkins University Data Services within the Sheridan Libraries, running Dataverse software ...
The Johns Hopkins research information portal at pure.johnshopkins.edu, which CNAMEs to jhu.elsevierpure.com. This is an Elsevier Pure tenancy: the researcher profiles, publicat...
aid: johns-hopkins-university
name: Johns Hopkins University
x-type: university
x-category: Private Research University
description: 'Johns Hopkins University is a private research university in Baltimore, Maryland, founded in 1876 and ranked
#21 in the QS World University Rankings 2026. Its programmable footprint is small but real and, unusually for this cohort,
it is genuinely its own: Johns Hopkins operates three APIs on hosts under its own registrable domains and publishes two
live machine-readable identity artifacts. The Hub API (api.hub.jhu.edu) serves news, announcements, events, photo galleries
and faculty experts from the Hub database across fifteen resource families, and the Self-Service Public Course Search API
(sis.jhu.edu/api) returns course catalog data as JSON; both are documented in public but issue keys only to Johns Hopkins
affiliates. A MuleSoft Anypoint portal at api.jh.edu fronts integration APIs and is gated entirely. Beyond those, the institution
runs a Shibboleth SAML 2.0 identity provider whose metadata it publishes itself at login.jh.edu and which is registered
in the InCommon Federation with Research and Scholarship and SIRTFI attributes; Project MUSE, operated by Johns Hopkins
University Press, answers OAI-PMH 2.0 over 897,938 harvestable records with no authentication at all — the only fully open
machine-readable surface the university has. The Johns Hopkins Research Data Repository (archive.data.jhu.edu) is Dataverse
software administered by JHU Data Services, and the university''s research portal at pure.johnshopkins.edu is an Elsevier
Pure tenancy: both hold Johns Hopkins data, and neither contract is Johns Hopkins engineering. No central public developer
portal, no changelog, no deprecation policy and no working status page exist for any of it.'
type: Index
accessModel:
pricing: free
onboarding: request
trial: false
try_now: false
public: false
label: Free · Affiliate-gated, key issued on request
confidence: high
source:
- plans
- authentication
- probes
generated: '2026-08-19'
method: probed
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/johns-hopkins-university.png
url: https://raw.githubusercontent.com/api-evangelist/johns-hopkins-university/refs/heads/main/apis.yml
tags:
- University
- Higher Education
- Education
- United States
- Private Research University
- Association of American Universities
- Research
- Research Data
- Course Catalog
- Identity Federation
- OAI-PMH
- Research Repository
- News
created: '2026-06-03'
modified: '2026-08-19'
specificationVersion: '0.23'
x-ror: https://ror.org/00za53h95
x-domains:
- jhu.edu
- jh.edu
- johnshopkins.edu
x-coverage:
state: covered
reason: institution_operated_surfaces_verified
detail: 'Johns Hopkins publishes three institution-operated APIs, two institution-operated SAML identity artifacts and one
fully open OAI-PMH repository, all verified live by direct probe on 2026-08-19. The profile is genuinely thin rather than
under-researched: the two documented APIs gate key issuance to Johns Hopkins affiliates, the MuleSoft portal is gated
entirely, and no central public developer portal exists. PARTIAL BLOCKING is the one caveat and it is about US, not about
them: Cloudflare bot management returns 403 to automated clients across the university''s WordPress estate (www.jhu.edu,
ai.jhu.edu, it.johnshopkins.edu, teaching.jhu.edu, press.jhu.edu) and across jscholarship.library.jhu.edu and archive.data.jhu.edu,
so the OAI-PMH endpoint that re3data records for the Johns Hopkins Research Data Repository could not be exercised from
here. Those hosts grade LIVE, not dead. A negative probe was run before crediting any vendor tenancy: zzznotarealtenant.
figshare.com resolves and answers 202 exactly as jhu.figshare.com does, so the Figshare DNS record is a wildcard and is
NOT evidence of a Johns Hopkins Figshare tenancy — none is claimed.'
evidence:
- url: https://api.hub.jhu.edu/docs/getting-started/introduction/
status: 200
- url: https://api.hub.jhu.edu/openapi.json
status: 401
- url: https://sis.jhu.edu/api/help
status: 200
- url: https://sis.jhu.edu/api/classes
status: 500
- url: https://api.jh.edu/
status: 200
- url: https://login.jh.edu/idp/shibboleth
status: 200
- url: https://mdq.incommon.org/entities/urn%3Amace%3Aincommon%3Ajohnshopkins.edu
status: 200
- url: https://muse.jhu.edu/oai?verb=Identify
status: 200
- url: https://muse.jhu.edu/oai?verb=ListMetadataFormats
status: 200
- url: https://api.datacite.org/providers/jhu
status: 200
- url: https://www.re3data.org/api/v1/repository/r3d100011836
status: 200
- url: https://pure.johnshopkins.edu/
status: 200
- url: https://pure.johnshopkins.edu/ws/oai?verb=Identify
status: 401
- url: https://archive.data.jhu.edu/oai?verb=Identify
status: 403
- url: https://jscholarship.library.jhu.edu/oai/request?verb=Identify
status: 403
- url: https://www.jhu.edu/
status: 403
- url: https://status.jh.edu/
status: 500
- url: https://data.jhu.edu/
status: 0
apis:
- aid: johns-hopkins-university:hub
name: JHU Hub API
description: REST API over the Hub database, the central repository of news articles, announcements, photo galleries, faculty
experts and events at Johns Hopkins. Built to power hub.jhu.edu and reused across JHU schools, divisions and centers.
Fifteen resource families, each exposing a collection, a single object and a subcollection endpoint, in HAL-formatted
JSON. Requires an API key on the `key` query parameter and a version on the `v` parameter; keys are issued by email to
Johns Hopkins affiliates.
humanURL: https://api.hub.jhu.edu/docs/
baseURL: https://api.hub.jhu.edu
x-operator: institution
x-operator-basis: api.hub.jhu.edu is under the institution's own registrable domain jhu.edu; the documentation is copyrighted
to Johns Hopkins University and describes the university's own Hub content database.
tags:
- News
- Event
- Faculty Experts
- Content
- HAL
tags_raw:
- News
- Events
- Faculty Experts
- Content
- HAL
properties:
- type: OpenAPI
url: openapi/johns-hopkins-university-hub-api-openapi.yml
- type: Documentation
url: https://api.hub.jhu.edu/docs/
- type: Documentation
url: https://api.hub.jhu.edu/docs/getting-started/connecting/
- type: x-example
url: examples/johns-hopkins-university-hub-article-example.json
- type: x-errors
url: errors/johns-hopkins-university-errors.yml
- type: x-lifecycle
url: lifecycle/johns-hopkins-university-lifecycle.yml
- aid: johns-hopkins-university:johns-hopkins-university-classes-api
name: Johns Hopkins University SIS Classes API
description: Course and section lookup and advanced search against the Self-Service Public Course Search API, which returns
the Johns Hopkins course catalog as JSON. Filterable by school, department, course number, section number and academic
term, or by a custom advanced-search query string. Requires an API key on the `key` query parameter.
humanURL: https://sis.jhu.edu/api/help
baseURL: https://sis.jhu.edu/api
x-operator: institution
x-operator-basis: sis.jhu.edu is under the institution's own registrable domain jhu.edu; the OpenAPI servers[] entry is
https://sis.jhu.edu/api and info.contact names the SIS Development Team, Johns Hopkins University.
tags:
- Classes
- Course Catalog
properties:
- type: OpenAPI
url: openapi/johns-hopkins-university-classes-api-openapi.yml
- type: Documentation
url: https://sis.jhu.edu/api
- type: Documentation
url: https://sis.jhu.edu/api/help
- type: JSONSchema
url: json-schema/johns-hopkins-university-course-schema.json
- type: JSONStructure
url: json-structure/johns-hopkins-university-course-structure.json
- type: x-example
url: examples/johns-hopkins-university-advanced-search-example.json
- type: x-example
url: examples/johns-hopkins-university-schools-example.json
- type: x-rules
url: rules/johns-hopkins-university-rules.yml
- type: x-vocabulary
url: vocabulary/johns-hopkins-university-vocabulary.yml
- type: x-json-ld
url: json-ld/johns-hopkins-university-context.jsonld
- type: x-errors
url: errors/johns-hopkins-university-errors.yml
- type: x-lifecycle
url: lifecycle/johns-hopkins-university-lifecycle.yml
- aid: johns-hopkins-university:johns-hopkins-university-codes-api
name: Johns Hopkins University SIS Codes API
description: Reference code lists — schools, terms and departments — from the Self-Service Public Course Search API. The
lookup vocabulary that makes the Classes API's filters usable. Requires an API key on the `key` query parameter.
humanURL: https://sis.jhu.edu/api/help
baseURL: https://sis.jhu.edu/api
x-operator: institution
x-operator-basis: sis.jhu.edu is under the institution's own registrable domain jhu.edu; the OpenAPI servers[] entry is
https://sis.jhu.edu/api and info.contact names the SIS Development Team, Johns Hopkins University.
tags:
- Codes
- Course Catalog
properties:
- type: OpenAPI
url: openapi/johns-hopkins-university-codes-api-openapi.yml
- type: Documentation
url: https://sis.jhu.edu/api
- type: Documentation
url: https://sis.jhu.edu/api/help
- type: JSONSchema
url: json-schema/johns-hopkins-university-course-schema.json
- type: JSONStructure
url: json-structure/johns-hopkins-university-course-structure.json
- type: x-example
url: examples/johns-hopkins-university-schools-example.json
- type: x-rules
url: rules/johns-hopkins-university-rules.yml
- type: x-vocabulary
url: vocabulary/johns-hopkins-university-vocabulary.yml
- type: x-json-ld
url: json-ld/johns-hopkins-university-context.jsonld
- type: x-errors
url: errors/johns-hopkins-university-errors.yml
- aid: johns-hopkins-university:api-portal
name: JHU API Portal (MuleSoft Anypoint)
description: Central API management platform built on MuleSoft Anypoint, where Johns Hopkins developers and consumers view
and request access to enterprise integration APIs. The portal answers 200 but its asset catalog is gated to Johns Hopkins
affiliates, so no contract, version or lifecycle policy is visible to the public. Recorded as a real surface with nothing
behind it that we can read.
humanURL: https://api.jh.edu/
baseURL: https://api.jh.edu
x-operator: institution
x-operator-basis: api.jh.edu is under the institution's own registrable domain jh.edu. MuleSoft supplies the platform software;
the tenancy and the APIs behind it are the institution's, and no MuleSoft-authored contract is saved here.
tags:
- Integration
- Gated
- MuleSoft
properties:
- type: Documentation
url: https://api.jh.edu/
- type: x-lifecycle
url: lifecycle/johns-hopkins-university-lifecycle.yml
- aid: johns-hopkins-university:identity-federation
name: Johns Hopkins Shibboleth Identity Provider
description: Johns Hopkins operates its own Shibboleth SAML 2.0 identity provider and publishes the entity metadata itself
at login.jh.edu, scoped to johnshopkins.edu and jh.edu. The same identity is registered in the InCommon Federation as
urn:mace:incommon:johnshopkins.edu, carrying the InCommon and REFEDS Research and Scholarship entity categories and SIRTFI
assurance certification. Live, signed, machine-readable and institution-operated by definition — the single most under-catalogued
surface class in higher education.
humanURL: https://login.jh.edu/idp/shibboleth
baseURL: https://login.jh.edu/idp
x-operator: institution
x-operator-basis: Metadata served from login.jh.edu under the institution's own registrable domain jh.edu; the Organization
element names Johns Hopkins University and the support contact is the JHU Enterprise Authentication Team at enterpriseauth@jh.edu.
tags:
- Identity Federation
- SAML
- Shibboleth
- InCommon
properties:
- type: IdentityFederation
url: identity-federation/johns-hopkins-university-identity-federation.yml
- type: x-saml-metadata
url: identity-federation/johns-hopkins-university-idp-saml-metadata.xml
- type: x-saml-metadata
url: identity-federation/johns-hopkins-university-incommon-entity-metadata.xml
- type: x-conformance
url: conformance/johns-hopkins-university-education-standards-conformance.yml
- aid: johns-hopkins-university:project-muse-oai
name: Project MUSE OAI-PMH Repository
description: Project MUSE, operated by Johns Hopkins University Press, exposes an OAI-PMH 2.0 harvesting endpoint that answers
Identify, ListMetadataFormats, ListSets and ListRecords with no authentication at all — 897,938 records across 971 sets
in oai_dc, earliest datestamp 2016-08-31. It is the only fully open machine-readable surface Johns Hopkins operates, and
the strongest single piece of education-regime domain standard evidence in this profile.
humanURL: https://about.muse.jhu.edu/
baseURL: https://muse.jhu.edu/oai
x-operator: institution
x-operator-basis: muse.jhu.edu is under the institution's own registrable domain jhu.edu; the Identify response names the
repository Project MUSE with adminEmail musetech@jh.edu. Project MUSE is a division of Johns Hopkins University Press.
tags:
- OAI-PMH
- Scholarly Publishing
- Metadata Harvesting
- Open Access
properties:
- type: Documentation
url: https://muse.jhu.edu/oai?verb=Identify
- type: x-conformance
url: conformance/johns-hopkins-university-education-standards-conformance.yml
- type: x-example
url: conformance/johns-hopkins-university-project-muse-oai-identify.xml
- type: x-example
url: conformance/johns-hopkins-university-project-muse-oai-metadataformats.xml
- aid: johns-hopkins-university:research-data-repository
name: Johns Hopkins Research Data Repository
description: 'Institutional research data repository at archive.data.jhu.edu, administered by Johns Hopkins University Data
Services within the Sheridan Libraries, running Dataverse software and minting DOIs through the institution''s own DataCite
account (repository symbol JHU.DS under provider JHU). re3data records an OAI-PMH endpoint at /oai. NO CONTRACT IS SAVED
HERE: the REST and OAI-PMH interfaces are the Dataverse Project''s, not Johns Hopkins engineering, and saving them under
this slug is precisely the misattribution this pipeline exists to prevent. The repository, the data and the DOIs are the
institution''s; the API contract is not.'
humanURL: https://archive.data.jhu.edu/
baseURL: https://archive.data.jhu.edu
x-operator: institution
x-operator-basis: archive.data.jhu.edu is under the institution's own registrable domain jhu.edu and is administered by
JHU Data Services. Dataverse supplies the software; the contract belongs to the Dataverse Project and is deliberately
not saved under this institution.
x-software: Dataverse
x-contract-owner: The Dataverse Project
tags:
- Research Data
- Research Repository
- Dataverse
- OAI-PMH
- DataCite
properties:
- type: ResearchRepository
url: https://archive.data.jhu.edu/
- type: Documentation
url: https://dataservices.library.jhu.edu/
- type: x-registry
url: https://www.re3data.org/repository/r3d100011836
- type: x-conformance
url: conformance/johns-hopkins-university-education-standards-conformance.yml
- aid: johns-hopkins-university:pure-research-portal
name: Johns Hopkins Research Portal (Elsevier Pure tenancy)
description: 'The Johns Hopkins research information portal at pure.johnshopkins.edu, which CNAMEs to jhu.elsevierpure.com.
This is an Elsevier Pure tenancy: the researcher profiles, publications and organizational data are Johns Hopkins'', the
platform and every API contract on it are Elsevier''s. Recorded as a TENANT relationship, which is a real institutional
fact worth keeping. Pure''s own web services (/ws/rest, /ws/api, /ws/oai) all answer 401 — deployed but closed to the
public. No Elsevier contract is saved under this institution.'
humanURL: https://pure.johnshopkins.edu/
baseURL: https://pure.johnshopkins.edu
x-operator: tenant
x-operator-basis: pure.johnshopkins.edu is a CNAME to jhu.elsevierpure.com — an institution-specific account on a vendor
platform. The data is Johns Hopkins'; the contract is Elsevier's and belongs against Elsevier's own profile, not this
one.
x-vendor: Elsevier Pure
tags:
- Research Information
- Research Repository
- Pure
- Tenant
properties:
- type: ResearchRepository
url: https://pure.johnshopkins.edu/
common:
- type: Website
url: https://www.jhu.edu/
- type: DeveloperPortal
url: https://api.jh.edu/
- type: APIReference
url: https://api.hub.jhu.edu/docs/
- type: Documentation
url: https://sis.jhu.edu/api/help
- type: CourseCatalog
url: https://sis.jhu.edu/api/help
- type: IdentityFederation
url: identity-federation/johns-hopkins-university-identity-federation.yml
- type: ResearchRepository
url: https://archive.data.jhu.edu/
- type: ResearchComputing
url: https://www.arch.jhu.edu/
- type: OpenData
url: https://dataservices.library.jhu.edu/
- type: LibraryCatalog
url: https://guides.library.jhu.edu/open-access/repositories
- type: AIPolicy
url: https://teaching.jhu.edu/university-teaching-policies/generative-ai/guidelines/
- type: GitHubOrganization
url: https://github.com/johnshopkins
- type: GitHub
url: https://github.com/jhu-data-services
- type: GitHub
url: https://github.com/JHUAPL
- type: Blog
url: https://hub.jhu.edu/
- type: LinkedIn
url: https://www.linkedin.com/school/johns-hopkins-university/
- type: AgenticAccess
url: agentic-access/johns-hopkins-university-agentic-access.yml
- type: DomainSecurity
url: security/johns-hopkins-university-domain-security.yml
- type: Authentication
url: authentication/johns-hopkins-university-authentication.yml
- type: Conformance
url: conformance/johns-hopkins-university-education-standards-conformance.yml
- type: Errors
url: errors/johns-hopkins-university-errors.yml
- type: Lifecycle
url: lifecycle/johns-hopkins-university-lifecycle.yml
- type: Plans
url: plans/johns-hopkins-university-plans-pricing.yml
- type: RateLimits
url: rate-limits/johns-hopkins-university-rate-limits.yml
- type: FinOps
url: finops/johns-hopkins-university-finops.yml
- type: Review
url: review.yml
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
Kin Score
How this is scored →