Universität Hamburg
Universität Hamburg is a public research university in Hamburg, Germany, and one of the largest in the country. It operates no central developer portal, publishes no OpenAPI of its own, and has no course, registrar, campus-life or open-data API — the STiNE campus-management system and the Katalogplus discovery service are both behind an authorization wall. What it does operate, on its own hosts and with its own engineering, is scholarly-communication and identity infrastructure: a research-data repository (ZFDM, www.fdr.uni-hamburg.de) whose read API returns unauthenticated JSON with CORS and rate-limit headers; five live OAI-PMH 2.0 repositories across dissertations, research data, the university press, its journal server and its digitized collections; and its own Shibboleth SAML 2.0 Identity Provider, whose metadata is published at login.uni-hamburg.de and registered in the DFN-AAI federation and thereby in eduGAIN. It is a DataCite registrant (prefix 10.25592) and its library is a Crossref member (prefix 10.15460). Almost all of this is library-and-computing-centre infrastructure rather than a product; none of it is documented for third-party developers.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Universität Hamburg the way a machine reads it — 20 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Universität Hamburg scores 34.8/100 (thin), with a separate agent-readiness read of 25/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
Put this on your own site. The badge is drawn live from Universität Hamburg's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/universitat-hamburg/"
title="Universität Hamburg on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/universitat-hamburg.svg"
alt="Universität Hamburg Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/universitat-hamburg/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/universitat-hamburg/"
title="Universität Hamburg on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/universitat-hamburg/card.svg"
alt="Universität Hamburg Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Universität Hamburg
Each block below is one kind of artifact we hold for Universität Hamburg. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 12
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
ZFDM Research Data Repository API
Read API of the ZFDM Repository (Forschungsdatenrepositorium), operated by Universität Hamburg's Zentrum für nachhaltiges Forschungsdatenmanagement on the institution's own host...
ZFDM Repository OAI-PMH
OAI-PMH 2.0 harvesting interface of the ZFDM Research Data Repository. Verified live 2026-09-01: repositoryName "ZFDM Repository", adminEmail repository.fdm@uni-hamburg.de, earl...
E-Dissertationen (ediss.sub.hamburg) OAI-PMH
OAI-PMH 2.0 metadata-harvesting interface for the DSpace-based institutional repository of electronic dissertations and habilitations of Universität Hamburg, operated by the Sta...
Hamburg University Press OAI-PMH
OAI-PMH 2.0 interface of Hamburg University Press, the open-access publishing house of the Staats- und Universitätsbibliothek Hamburg, running on OJS. Verified live 2026-09-01 w...
HUP Journal Server OAI-PMH
OAI-PMH 2.0 interface of the journal server of Hamburg University Press. Verified live 2026-09-01: repositoryName "Journal Server of Hamburg University Press - Publishing House ...
Digitized Collections (Kitodo.Presentation) OAI-PMH
OAI-PMH 2.0 interface over the digitized collections of the Staats- und Universitätsbibliothek Hamburg, running Kitodo.Presentation. Verified live 2026-09-01 serving real PPN id...
Universität Hamburg Shibboleth SAML 2.0 Identity Provider Metadata
The institution's own SAML 2.0 Identity Provider metadata, served from its own host. entityID https://login.uni-hamburg.de/idp/shibboleth, mdui:DisplayName "Universität Hamburg ...
DFN-AAI / eduGAIN Federation Membership
Universität Hamburg's IdP is registered in DFN-AAI, the German national identity federation and eduGAIN member, and its metadata is resolvable through the DFN-AAI MDQ service. r...
DataCite Registrant (prefix 10.25592)
Universität Hamburg is a DataCite registrant. DOI prefix 10.25592 resolves to DataCite client tib.fdmuh, named "Universität Hamburg", registered 2017 and used by the ZFDM Reposi...
Crossref Member 25426 (prefix 10.15460)
The Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky — the university library and publisher of Hamburg University Press — is Crossref member 25426, depositing under...
ROR Registration (00g30e956)
Universität Hamburg is registered in the Research Organization Registry as https://ror.org/00g30e956. Membership recorded; the ROR API is ROR's.
Open-Access-Portal Universität Hamburg
Open Access discovery portal aggregating freely available publications, research data, teaching materials and scientific collections of Universität Hamburg. Human-facing only — ...
Scroll within the panel for all 12 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Universitat Hamburg Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Semantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Universitat Hamburg Context
JSON-LDExamples 2
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for Universität Hamburg — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Design & Contract 1
Pagination, idempotency, versioning, errors, and events
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 2
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 5
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/universitat-hamburg · machine-readable index on apis.io
This is an independent, third-party profile of Universität Hamburg, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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