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. Returns records, communities, licenses and file buckets as unauthenticated JSON with Access-Control-Allow-Origin *, RFC 8288 Link pagination and X-RateLimit-* headers (limit 5000). Deposit paths return 401. Records carry DataCite DOIs under the institutional prefix 10.25592 and ORCID iDs on creators. The repository runs Invenio, so the contract SHAPE originates upstream; the deployment, host, identifiers and data are the institution's, and the OpenAPI below was derived by API Evangelist from live probes because the institution publishes none.
ZFDM Research Data Repository API is one of 12 APIs that Universität Hamburg publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Research Data, Repository, DataCite, DOI, and Open Access. The published artifact set on APIs.io includes an OpenAPI specification, authentication docs, and API documentation.
This API exposes 6 operations across 6 paths, organized into 4 resource areas, and defines 3 schemas. It is described by OpenAPI 3.0.3, at version 2026-09-01.
Requests are made against a single base URL, https://www.fdr.uni-hamburg.de/api.
Metadata
The identity and technical contract details declared by the specification.
Paths & Operations 6
Across 6 paths, the API surfaces 6 operations — 6 GET. They span 4 resource areas: Records, Communities, Licenses, Files. Each is listed below with its method, path, parameters, and response codes.
Published research-data records and their metadata.
Curated collections within the repository.
Controlled license vocabulary used by records.
File buckets attached to a record.
Schemas 3
The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are Record (9 properties), Community (8 properties), Error (2 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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Other APIs Universität Hamburg publishes across the network.
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