DDD Invenio Search and Export Interface
The repository's search endpoint returns machine-readable records when given an output format: of=xm yields MARC21 XML in the loc.gov/MARC21/slim namespace, of=xd yields Dublin Core XML, of=hx yields BibTeX. Responses carry a Search-Engine-Total-Number-Of-Results comment; an unrestricted query reported 221,931 records on 2026-09-01. Anonymous, no key, no registration. This is the practical export route for selections that do not map onto an OAI-PMH set, and it is described in the same derived contract as the OAI-PMH interface because it runs on the same UAB host.
DDD Invenio Search and Export Interface is one of 11 APIs that Autonomous University of Barcelona publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Search, Metadata, MARC21, Dublin Core, and Invenio. The published artifact set on APIs.io includes an OpenAPI specification.
This API exposes 2 operations across 2 paths, organized into 2 resource areas. It is described by OpenAPI 3.1.0, at version 1.0.0.
Requests are made against 3 base URLs: https://ddd.uab.cat, https://traces.uab.cat, https://ifmuc.uab.cat.
Metadata
The identity and technical contract details declared by the specification.
Paths & Operations 2
Across 2 paths, the API surfaces 2 operations — 2 GET. They span 2 resource areas: OAI-PMH, Search. Each is listed below with its method, path, parameters, and response codes.
Open Archives Initiative Protocol for Metadata Harvesting 2.0. The repository is OpenAIRE-compliant and is harvested by Google Scholar, BASE and CORE.
Invenio search with machine-readable output formats, used for record export outside the OAI-PMH flow.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Autonomous University of Barcelona 10
Other APIs Autonomous University of Barcelona publishes across the network.
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