University of Bonn Search API

openapi: 3.0.3
info:
  title: bonndata Dataverse Native REST API (Public Read Subset) Datasets Search API
  description: Public, read-only subset of the Dataverse Native REST API as exposed by bonndata, the University of Bonn institutional research data repository (https://bonndata.uni-bonn.de). The paths, parameters, and operationIds in this document are taken faithfully from the live machine-readable OpenAPI document published by the server at https://bonndata.uni-bonn.de/openapi (Dataverse software version 6.7.1). This subset includes only the endpoints that are publicly accessible without an API token and were verified live on 2026-06-03 (search, dataset retrieval, dataset versions, metadata export, repository info, and dataset metrics). Response schemas were modeled from the actual JSON payloads returned by the live service. The full upstream Dataverse API (425 paths, many requiring authentication) is documented at the Native API guide referenced below.
  version: 6.7.1
  contact:
    name: bonndata Research Data Repository, University of Bonn
    email: bonndata@uni-bonn.de
    url: https://bonndata.uni-bonn.de/
  license:
    name: Apache License 2.0
    url: https://github.com/IQSS/dataverse/blob/develop/LICENSE.md
servers:
- url: https://bonndata.uni-bonn.de/api
  description: bonndata Dataverse Native API base (verified live, 362 indexed datasets)
tags:
- name: Search
  description: Search the published catalog of datasets, dataverses, and files.
paths:
  /search:
    get:
      tags:
      - Search
      summary: Search published content
      description: Search across published datasets, dataverses (collections), and files. Verified live returning 362 indexed datasets for q=*&type=dataset.
      operationId: Search_search
      parameters:
      - name: q
        in: query
        description: Search query string (use * to match all).
        schema:
          type: string
      - name: type
        in: query
        description: Restrict results to a content type.
        schema:
          type: array
          items:
            type: string
            enum:
            - dataset
            - dataverse
            - file
      - name: subtree
        in: query
        description: Restrict the search to one or more dataverse aliases.
        schema:
          type: array
          items:
            type: string
      - name: sort
        in: query
        description: Field to sort on (e.g. name, date).
        schema:
          type: string
      - name: order
        in: query
        description: Sort order.
        schema:
          type: string
          enum:
          - asc
          - desc
      - name: per_page
        in: query
        description: Number of results per page (max 1000).
        schema:
          type: integer
          default: 10
      - name: start
        in: query
        description: Zero-based offset of the first result to return.
        schema:
          type: integer
          default: 0
      - name: fq
        in: query
        description: Filter query(ies) to narrow results.
        schema:
          type: array
          items:
            type: string
      - name: show_relevance
        in: query
        schema:
          type: boolean
      - name: show_facets
        in: query
        schema:
          type: boolean
      - name: show_entity_ids
        in: query
        schema:
          type: boolean
      - name: show_type_counts
        in: query
        schema:
          type: boolean
      - name: geo_point
        in: query
        description: Latitude,longitude point for geospatial search.
        schema:
          type: string
      - name: geo_radius
        in: query
        description: Radius in kilometers for geospatial search.
        schema:
          type: string
      responses:
        '200':
          description: Search results.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SearchResponse'
  /search/services:
    get:
      tags:
      - Search
      summary: List available search engines
      operationId: Search_getSearchEngines
      responses:
        '200':
          description: Available search services.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiEnvelope'
components:
  schemas:
    SearchData:
      type: object
      properties:
        q:
          type: string
          example: '*'
        total_count:
          type: integer
          example: 362
        start:
          type: integer
          example: 0
        spelling_alternatives:
          type: object
          additionalProperties: true
        count_in_response:
          type: integer
          example: 2
        items:
          type: array
          items:
            $ref: '#/components/schemas/SearchItem'
      required:
      - total_count
      - start
      - items
    SearchResponse:
      type: object
      properties:
        status:
          type: string
          example: OK
        data:
          $ref: '#/components/schemas/SearchData'
      required:
      - status
      - data
    ApiEnvelope:
      type: object
      description: Standard Dataverse API response envelope.
      properties:
        status:
          type: string
          enum:
          - OK
          - ERROR
        data:
          type: object
          additionalProperties: true
        message:
          type: string
      required:
      - status
    SearchItem:
      type: object
      description: A single search hit. Fields shown are those returned for datasets.
      properties:
        name:
          type: string
        type:
          type: string
          enum:
          - dataset
          - dataverse
          - file
        url:
          type: string
          format: uri
        global_id:
          type: string
          example: doi:10.60507/FK2/BBP6GG
        description:
          type: string
        published_at:
          type: string
          format: date-time
        publisher:
          type: string
        citationHtml:
          type: string
        identifier_of_dataverse:
          type: string
        name_of_dataverse:
          type: string
        citation:
          type: string
        storageIdentifier:
          type: string
        subjects:
          type: array
          items:
            type: string
        fileCount:
          type: integer
        versionId:
          type: integer
        versionState:
          type: string
          example: RELEASED
        majorVersion:
          type: integer
        minorVersion:
          type: integer
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        publicationStatuses:
          type: array
          items:
            type: string
        contacts:
          type: array
          items:
            type: object
            additionalProperties: true
        authors:
          type: array
          items:
            type: string
        geographicCoverage:
          type: array
          items:
            type: string
      required:
      - name
      - type
      - url
externalDocs:
  description: Dataverse Native API guide
  url: https://guides.dataverse.org/en/latest/api/native-api.html