Humboldt-Universität zu Berlin
Humboldt-Universität zu Berlin (HU Berlin) is a public research university in Berlin, Germany, founded in 1810 and ranked #126 in the QS World University Rankings 2025. Like almost every university, HU is a federation of buyers rather than an API producer: it publishes no developer portal, no API terms, no SDKs and not one OpenAPI of its own, and every OpenAPI in this repository was authored by API Evangelist from live probes and says so in its own info.description. What HU does genuinely operate is scholarly and identity infrastructure on its own hosts. The edoc-Server institutional repository at edoc.hu-berlin.de (DSpace 8, self-hosted by the University Library) exposes an unauthenticated read REST API and a full OAI-PMH 2.0 interface advertising eighteen metadata formats including oai_datacite. The LAUDATIO-Repository for historical linguistic corpora, run by the Corpus Linguistics department with the Computer- und Medienservice, publishes a documented, versioned, public REST API over its Elasticsearch index. HU operates its own Shibboleth/SAML identity provider, registered in DFN-AAI and published to eduGAIN, and is a DataCite member (VLEF) minting 32,950 DOIs under its own prefix 10.18452 across ten registered repositories. Its library discovery is an Ex Libris Primo/Alma tenancy and is not HU engineering. Note for machine consumers: hu-berlin.de web hosts, including the GitLab instance at scm.cms.hu-berlin.de, sit behind an Anubis proof-of-work bot wall that returns HTTP 200 with a JavaScript challenge instead of content — the data hosts (edoc, LAUDATIO) do not.
Humboldt-Universität zu Berlin publishes 3 APIs on the APIs.io network: edoc-Server DSpace REST API, edoc-Server OAI-PMH 2.0 Interface, and LAUDATIO-Repository REST API. Tagged areas include University, Higher Education, Education, Research, and Germany.
The Humboldt-Universität zu Berlin catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
Humboldt-Universität zu Berlin’s developer surface includes API reference, authentication, and 22 more developer resources.
3 APIs
Individual APIs this provider publishes, each with its own machine-readable definition.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Published pricing tiers and plan structures.
Documented rate limits and quota policies.
Cost, billing, and metering signals for API financial operations.
JSON-LD contexts and semantic vocabularies used across these APIs.
Spectral governance rulesets for linting and validating these APIs.
Standalone JSON Schema definitions for this provider's data models.
JSON Structure definitions describing this provider's data shapes.
Example request and response payloads for these APIs.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Recommended x-agentic-access execution contracts for AI agents.
aid: humboldt-universitat-zu-berlin
name: Humboldt-Universität zu Berlin
x-type: university
x-category: Public Research University
description: 'Humboldt-Universität zu Berlin (HU Berlin) is a public research university in Berlin, Germany, founded in 1810
and ranked #126 in the QS World University Rankings 2025. Like almost every university, HU is a federation of buyers rather
than an API producer: it publishes no developer portal, no API terms, no SDKs and not one OpenAPI of its own, and every
OpenAPI in this repository was authored by API Evangelist from live probes and says so in its own info.description. What
HU does genuinely operate is scholarly and identity infrastructure on its own hosts. The edoc-Server institutional repository
at edoc.hu-berlin.de (DSpace 8, self-hosted by the University Library) exposes an unauthenticated read REST API and a full
OAI-PMH 2.0 interface advertising eighteen metadata formats including oai_datacite. The LAUDATIO-Repository for historical
linguistic corpora, run by the Corpus Linguistics department with the Computer- und Medienservice, publishes a documented,
versioned, public REST API over its Elasticsearch index. HU operates its own Shibboleth/SAML identity provider, registered
in DFN-AAI and published to eduGAIN, and is a DataCite member (VLEF) minting 32,950 DOIs under its own prefix 10.18452 across
ten registered repositories. Its library discovery is an Ex Libris Primo/Alma tenancy and is not HU engineering. Note for
machine consumers: hu-berlin.de web hosts, including the GitLab instance at scm.cms.hu-berlin.de, sit behind an Anubis proof-of-work
bot wall that returns HTTP 200 with a JavaScript challenge instead of content — the data hosts (edoc, LAUDATIO) do not.'
type: Index
deliveryModel:
model: saas
open_source: false
commercial: false
callable_host: true
label: Institution-operated endpoints · you call their host
confidence: high
source:
- openapi
- probe
generated: '2026-09-01'
method: probed
accessModel:
pricing: free
onboarding: none
trial: false
try_now: true
public: true
label: Free · unauthenticated public read, no registration offered
confidence: high
source:
- probe
generated: '2026-09-01'
method: probed
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/humboldt-universitat-zu-berlin.png
url: https://raw.githubusercontent.com/api-evangelist/humboldt-universitat-zu-berlin/refs/heads/main/apis.yml
tags:
- University
- Higher Education
- Education
- Research
- Germany
- Berlin
- Institutional Repository
- Research Data
- Open Access
- Library
- Identity Federation
- OAI-PMH
- DataCite
- Shibboleth
- Corpus Linguistics
created: '2026-06-03'
modified: '2026-09-01'
specificationVersion: '0.23'
x-coverage:
state: covered
reason: covered
detail: 'Four institution-operated machine-readable surfaces were found and probed live on 2026-09-01: the edoc-Server DSpace
REST API and its OAI-PMH 2.0 interface (both on edoc.hu-berlin.de, HU''s own domain), the LAUDATIO-Repository REST API,
and HU''s own Shibboleth/SAML identity provider as registered in DFN-AAI and eduGAIN. HU''s DataCite membership (VLEF,
ROR 01hcx6992, prefix 10.18452, 32,950 DOIs, 10 registered repositories) is recorded as a registry membership. Three surfaces
are recorded as relationships without saving anyone else''s contract: the Ex Libris Primo/Alma library discovery tenancy,
the NOMAD Repository (nomad-lab.eu — a FAIRmat consortium platform whose DOIs HU mints under tib.hu), and the GenderOpen
repository shared with FU and TU Berlin. HU itself publishes no OpenAPI, no developer portal, no API terms of service
and no SDKs; the June 2026 profile of this repo claimed the edoc surface as three separate APIs, which is one surface
counted three times, and that has been collapsed. One measurement caveat worth carrying forward: every hu-berlin.de WEB
host probed (www., ub., cms., edoc-info., scm.) sits behind an Anubis proof-of-work bot wall that answers HTTP 200 with
a JavaScript challenge page, so a status-code-only probe reads them as live content and a /llms.txt probe of www.hu-berlin.de
returns 200 for a challenge page rather than an llms.txt. The DATA hosts (edoc.hu-berlin.de, media.hu-berlin.de, agnes.hu-berlin.de,
laudatio-repository.org) are not walled, which is why coverage is `covered` and not `bot_blocked`.'
evidence:
- url: https://edoc.hu-berlin.de/server/api
status: 200
- url: https://edoc.hu-berlin.de/server/oai/request?verb=Identify
status: 200
- url: https://www.laudatio-repository.org/api/elasticapi/v1/corpora/latest/count
status: 200
- url: https://technical.edugain.org/api.php?action=list_entities&format=json
status: 200
- url: https://api.datacite.org/providers/vlef
status: 200
- url: https://www.hu-berlin.de/.well-known/security.txt
status: 200
- url: https://scm.cms.hu-berlin.de/api/v4/version
status: 200
note: HTTP 200 but the body is an Anubis proof-of-work challenge, not the GitLab API response.
- url: https://www.hu-berlin.de/llms.txt
status: 200
note: HTTP 200 but the body is an Anubis challenge page; HU publishes no llms.txt.
- url: https://edoc.hu-berlin.de/server/api/core/items?size=1
status: 401
generated: '2026-09-01'
method: probed
apis:
- aid: humboldt-universitat-zu-berlin:edoc-rest
name: edoc-Server DSpace REST API
x-operator: institution
description: Public, unauthenticated read API of the edoc-Server, the Open Access institutional repository of Humboldt-Universität
zu Berlin, operated by the University Library's Arbeitsgruppe Elektronisches Publizieren. Live probe 2026-09-01 returned
dspaceName "edoc-Server", dspaceVersion "DSpace 8.5-SNAPSHOT"; /core/communities and /discover/search/objects both answered
200, /core/items answered 401. The repository software is DSpace (open source, BSD, self-hosted) — the software is a third
party's, the host, the deployment and the content are HU's, which is why this is `institution` and not `tenant`. HU publishes
no OpenAPI for it; the three contracts below were authored by API Evangelist from live responses and each says so in its
own description. They are three tag-split views of ONE surface, not three APIs — the June 2026 profile listed them as
three separate entries and that inflation has been corrected here.
humanURL: https://edoc-info.hu-berlin.de/en
baseURL: https://edoc.hu-berlin.de/server/api
tags:
- Institutional Repository
- DSpace
- Open Access
- Research Data
properties:
- type: OpenAPI
url: openapi/humboldt-universitat-zu-berlin-core-api-openapi.yml
- type: OpenAPI
url: openapi/humboldt-universitat-zu-berlin-discovery-api-openapi.yml
- type: OpenAPI
url: openapi/humboldt-universitat-zu-berlin-root-api-openapi.yml
- type: Documentation
url: https://edoc-info.hu-berlin.de/en
- type: Website
url: https://edoc.hu-berlin.de/
- type: x-json-schema
url: json-schema/humboldt-universitat-zu-berlin-item-schema.json
- type: x-json-schema
url: json-schema/humboldt-universitat-zu-berlin-community-schema.json
- type: x-json-schema
url: json-schema/humboldt-universitat-zu-berlin-collection-schema.json
- type: x-vocabulary
url: vocabulary/humboldt-universitat-zu-berlin-vocabulary.yml
- type: x-rules
url: rules/humboldt-universitat-zu-berlin-rules.yml
- type: x-json-ld
url: json-ld/humboldt-universitat-zu-berlin-context.jsonld
- aid: humboldt-universitat-zu-berlin:edoc-oai
name: edoc-Server OAI-PMH 2.0 Interface
x-operator: institution
description: OAI-PMH 2.0 metadata harvesting endpoint for the edoc institutional repository, on HU's own host. ?verb=Identify
returned 200 on 2026-09-01 with repositoryName "edoc-Server", repositoryIdentifier edoc.hu-berlin.de, adminEmail edocadmins@lists.hu-berlin.de,
earliestDatestamp 2017-06-15 and granularity YYYY-MM-DDThh:mm:ssZ. Eighteen metadata formats are advertised — didl, mods,
xMetaDissPlus, ore, mets, xoai, dim, uketd_dc, qdc, oai_dc, rdf, oai_datacite, epicur, marc, marc21_huub, xMetaDissPlusPlus,
etdms — and sets are exposed by Dewey class, document type and researchData. This is the strongest standards-conformant
surface HU operates.
humanURL: https://edoc-info.hu-berlin.de/en
baseURL: https://edoc.hu-berlin.de/server/oai/request
tags:
- OAI-PMH
- Metadata Harvesting
- Open Access
- Institutional Repository
properties:
- type: OpenAPI
url: openapi/humboldt-universitat-zu-berlin-oai-pmh-api-openapi.yml
- type: Documentation
url: https://edoc-info.hu-berlin.de/en
- type: Website
url: https://edoc.hu-berlin.de/
- type: x-conformance
url: conformance/humboldt-universitat-zu-berlin-conformance.yml
- aid: humboldt-universitat-zu-berlin:laudatio-repository-api
name: LAUDATIO-Repository REST API
x-operator: institution
description: 'Documented, versioned, public read API of the LAUDATIO-Repository (Long-term Access and Usage of Deeply Annotated
Information), the open-access research-data repository for historical linguistic corpora operated by HU''s Department
of Corpus Linguistics with the Computer- und Medienservice. HU publishes its own API reference at /docs/elasticapi naming
32 paths across corpora, documents and annotations; live probe 2026-09-01 returned 30 corpora, 5,284 documents and 1,160
annotation layers. Classified `institution` despite the laudatio-repository.org domain because every ownership signal
is HU''s: the site imprint and privacy policy point at hu-berlin.de, sign-in authenticates HU accounts against HU''s Shibboleth
IdP, the source is on HU''s own GitLab, and DOIs are minted under HU''s DataCite membership as repository tib.hu-laudatio.
This surface was missed entirely by the June 2026 profile.'
humanURL: https://www.laudatio-repository.org/docs/elasticapi
baseURL: https://www.laudatio-repository.org/api/elasticapi/v1
tags:
- Research Data
- Corpus Linguistics
- Open Access
- Repository
properties:
- type: OpenAPI
url: openapi/humboldt-universitat-zu-berlin-laudatio-repository-api-openapi.yml
- type: APIReference
url: https://www.laudatio-repository.org/docs/elasticapi
- type: Website
url: https://www.laudatio-repository.org/
- type: SourceCode
url: https://scm.cms.hu-berlin.de/hu-berlin-laudatio-repository/laudatio-repository
- aid: humboldt-universitat-zu-berlin:shibboleth-idp
name: HU-IAM Shibboleth Identity Provider (SAML 2.0)
x-operator: federation
description: 'Humboldt-Universität zu Berlin operates its own Shibboleth/SAML identity provider, entityID https://shib-idp.cms.hu-berlin.de/idp/shibboleth,
registered by DFN-AAI (registrationAuthority https://www.aai.dfn.de) and published to eduGAIN with IDPSSODescriptor and
AttributeAuthorityDescriptor roles and eccs_status 1, read from the eduGAIN technical database on 2026-09-01. A second
HU entity, the service provider https://korpling-auth.german.hu-berlin.de/shibboleth, is registered in the same federation.
The federation aggregate is shared by definition; the IdP behind it is HU''s own, which is why this is recorded rather
than discarded. CAVEAT: the IdP''s own metadata URL returns 200 XML but serves Shibboleth''s stock example metadata with
entityID idp-dev.cms.hu-berlin.de — the authoritative metadata is the DFN-AAI aggregate.'
humanURL: https://www.cms.hu-berlin.de/de/dl/hu-iam/shibboleth
baseURL: https://shib-idp.cms.hu-berlin.de/idp/shibboleth
x-entity-id: https://shib-idp.cms.hu-berlin.de/idp/shibboleth
x-federation: DFN-AAI (https://www.aai.dfn.de), published to eduGAIN
tags:
- Identity Federation
- Shibboleth
- SAML
- Single Sign-On
properties:
- type: Documentation
url: https://www.cms.hu-berlin.de/de/dl/hu-iam/shibboleth
- type: x-conformance
url: conformance/humboldt-universitat-zu-berlin-conformance.yml
- aid: humboldt-universitat-zu-berlin:datacite-membership
name: DataCite Membership (VLEF)
x-operator: registry
description: 'Humboldt-Universität zu Berlin is a DataCite member — provider symbol VLEF, memberType consortium_organization,
country DE, ROR https://ror.org/01hcx6992, created 2020-12-11 — with its own DOI prefix 10.18452 carrying 32,950 DOIs
and ten registered repositories: tib.hu-edoc (edoc-Server), tib.hu-laudatio (LAUDATIO), tib.hu-mr (Media Repository),
tib.hu-genop (Gender Open), tib.hu (NOMAD), tib.hu-agep, tib.topoi, vlef.hu-fmb, vlef.clio-online and gesis.qjb. This
is a membership recorded as a fact about HU; api.datacite.org is DataCite''s contract and is deliberately NOT saved here.'
humanURL: https://commons.datacite.org/providers/vlef
x-registrant-id: vlef
x-doi-prefix: '10.18452'
x-ror: https://ror.org/01hcx6992
tags:
- DataCite
- DOI
- Persistent Identifiers
- Registry Membership
properties:
- type: Registry
url: https://api.datacite.org/providers/vlef
- type: Registry
url: https://ror.org/01hcx6992
- type: x-conformance
url: conformance/humboldt-universitat-zu-berlin-conformance.yml
- aid: humboldt-universitat-zu-berlin:hu-gitlab
name: HU Berlin GitLab (scm.cms.hu-berlin.de)
x-operator: institution
description: HU's Computer- und Medienservice operates its own GitLab instance at scm.cms.hu-berlin.de, hosting institutional
projects including the LAUDATIO repository source. GitLab exposes a REST API at /api/v4, but that contract is GitLab's
product API, not HU's engineering, so it is not saved here — only the deployment is recorded. Every path on this host,
/api/v4 included, currently answers HTTP 200 with an Anubis proof-of-work challenge rather than content, so the API is
effectively unreachable to a non-browser client.
humanURL: https://scm.cms.hu-berlin.de/
baseURL: https://scm.cms.hu-berlin.de/api/v4
tags:
- Source Control
- GitLab
- Research Software
properties:
- type: Website
url: https://scm.cms.hu-berlin.de/hu-berlin-laudatio-repository/laudatio-repository
- aid: humboldt-universitat-zu-berlin:primo-discovery
name: University Library Primus Discovery (Ex Libris Primo/Alma tenancy)
x-operator: tenant
description: Primus, the University Library's central search portal, is an Ex Libris Primo deployment backed by Alma, served
from hu-berlin.primo.exlibrisgroup.com under view 49KOBV_HUB:HUB_UB within the KOBV network. The tenancy is real and it
is HU's library catalog; the Primo/Alma REST contract belongs to Ex Libris and is deliberately not saved under this institution.
API access is governed by the library and Ex Libris and is not self-service.
humanURL: https://www.ub.hu-berlin.de/en/literature-search/catalogues/catalogues
x-tenant-url: https://hu-berlin.primo.exlibrisgroup.com/discovery/search?vid=49KOBV_HUB:HUB_UB
x-vendor: Ex Libris (Clarivate)
tags:
- Library
- Discovery
- Primo
- Alma
- Catalog
properties:
- type: Documentation
url: https://www.ub.hu-berlin.de/en/literature-search/catalogues/catalogues
- type: Website
url: https://hu-berlin.primo.exlibrisgroup.com/discovery/search?vid=49KOBV_HUB:HUB_UB
- aid: humboldt-universitat-zu-berlin:nomad-repository
name: NOMAD Repository (FAIRmat) — HU DOI tenancy
x-operator: tenant
description: The NOMAD Repository for computational materials-science data is registered under HU Berlin's DataCite membership
as repository tib.hu ("HU Berlin - NOMAD Repository"), and the NOMAD Laboratory / FAIRmat consortium is led from HU's
Department of Physics. NOMAD publishes a live OpenAPI at nomad-lab.eu with 87 paths, but that contract is the consortium
platform's — info.title "NOMAD API", version "v1, NOMAD 1.4.3.post1", a relative server (/prod/v1/api/v1), no contact
and no HU identity anywhere in it — so it is recorded as a relationship and NOT saved under this institution.
humanURL: https://nomad-lab.eu/
x-tenant-url: https://nomad-lab.eu/prod/v1/api/v1/openapi.json
x-datacite-repository: tib.hu
tags:
- Research Data
- Materials Science
- FAIR Data
- Repository
properties:
- type: Website
url: https://nomad-lab.eu/prod/v1/api/v1/openapi.json
- aid: humboldt-universitat-zu-berlin:genderopen
name: GenderOpen Repositorium — HU DOI tenancy
x-operator: tenant
description: GenderOpen is the shared open-access repository for gender studies run jointly by the Freie Universität Berlin,
Humboldt-Universität zu Berlin and Technische Universität Berlin. It is a DSpace deployment on genderopen.de with a live
OAI-PMH endpoint at /server/oai/request (200 on 2026-09-01), and its DOIs are registered under HU's DataCite membership
as tib.hu-genop. Shared with two peer institutions, so the relationship is recorded and no contract is saved here.
humanURL: https://www.genderopen.de/
baseURL: https://www.genderopen.de/server/oai/request
x-datacite-repository: tib.hu-genop
tags:
- Open Access
- Repository
- OAI-PMH
- Gender Studies
properties:
- type: Website
url: https://www.genderopen.de/
common:
- type: Website
url: https://www.hu-berlin.de/en
- type: ResearchRepository
url: https://edoc.hu-berlin.de/
- type: ResearchRepository
url: https://www.laudatio-repository.org/
- type: ResearchRepository
url: https://media.hu-berlin.de/
- type: LibraryCatalog
url: https://hu-berlin.primo.exlibrisgroup.com/discovery/search?vid=49KOBV_HUB:HUB_UB
- type: CourseCatalog
url: https://agnes.hu-berlin.de/
- type: IdentityFederation
url: https://www.cms.hu-berlin.de/de/dl/hu-iam/shibboleth
- type: AITooling
url: https://ai-skills.hu-berlin.de/
- type: APIReference
url: https://www.laudatio-repository.org/docs/elasticapi
- type: GitHubOrganization
url: https://github.com/UB-HU-Berlin
- type: VCS
url: https://scm.cms.hu-berlin.de/
- type: LinkedIn
url: https://www.linkedin.com/school/humboldt-universitat-zu-berlin/
- type: TermsOfService
url: https://www.hu-berlin.de/de/hu/impressum
- type: PrivacyPolicy
url: https://www.hu-berlin.de/de/hu/impressum/datenschutzerklaerung
- type: Authentication
url: https://www.cms.hu-berlin.de/de/dl/hu-iam/shibboleth
- type: Conformance
url: conformance/humboldt-universitat-zu-berlin-conformance.yml
- type: CapabilityMap
url: capabilities/humboldt-universitat-zu-berlin-capability-edges.yml
name: Humboldt-Universität zu Berlin Business Capability Map
- type: AgenticAccess
url: agentic-access/humboldt-universitat-zu-berlin-agentic-access.yml
- type: VulnerabilityDisclosure
url: security/humboldt-universitat-zu-berlin-vulnerability-disclosure.yml
- type: DomainSecurity
url: security/humboldt-universitat-zu-berlin-domain-security.yml
- type: Plans
url: plans/humboldt-universitat-zu-berlin-plans-pricing.yml
- type: RateLimits
url: rate-limits/humboldt-universitat-zu-berlin-rate-limits.yml
- type: FinOps
url: finops/humboldt-universitat-zu-berlin-finops.yml
- type: Review
url: review.yml
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
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