University of Oxford Repository API

openapi: 3.2.0
info:
  title: ORA — Oxford University Research Archive Search Repository…
  version: '2026-08-19'
  summary: JSON:API-shaped search and record retrieval over Oxford's institutional open-access repository.
  description: 'A derived description of the JSON responses that the Oxford University Research Archive

    (ORA) returns from its public object endpoints.'
  contact:
    name: ORA — Bodleian Libraries, University of Oxford
    email: ora-dev@bodleian.ox.ac.uk
    url: https://ora.ox.ac.uk/api
  termsOfService: https://ora.ox.ac.uk/terms_of_use
  license:
    name: Metadata available under CC0 1.0 via the rioxx_terms_cc0 OAI-PMH format
    url: https://creativecommons.org/publicdomain/zero/1.0/
  x-operator: institution
  x-operator-evidence: ora.ox.ac.uk is a University of Oxford registrable domain; the OAI-PMH Identify response for the same service names ora4-rhel9-prd-public2.bodleian.ox.ac.uk as the origin and ora-dev@bodleian.ox.ac.uk as the administrator.
  x-provenance:
    generated: '2026-08-19'
    method: derived
    source: Derived from live unauthenticated GET responses to https://ora.ox.ac.uk/objects.json and https://ora.ox.ac.uk/objects/{id}.json captured 2026-08-19; payloads stored in ../examples/university-of-oxford-ora-search-response.json and ../examples/university-of-oxford-ora-object-response.json.
servers:
- url: https://ora.ox.ac.uk
  description: ORA public production (fronted by Cloudflare; some paths are bot-challenged)
tags:
- name: Repository
  description: Search and retrieval of ORA repository records.
paths:
  /objects.json:
    get:
      operationId: searchObjects
      summary: Search ORA repository records
      description: Returns a paged, faceted result set of ORA records. The response also carries the service's own vocabulary — the supported search_field values, sort orders and facet fields — under `included`, which makes the endpoint self-describing.
      tags:
      - Repository
      parameters:
      - name: q
        in: query
        description: Free-text query.
        required: false
        schema:
          type: string
        example: climate
      - name: search_field
        in: query
        description: Field the query is applied to. Observed values come from the service's own `included[type=search_field]` entries.
        required: false
        schema:
          type: string
          enum:
          - all_fields
          - title
          - author
          - keyword
          default: all_fields
      - name: sort
        in: query
        description: Sort order, taken from the service's own `included[type=sort]` entries.
        required: false
        schema:
          type: string
          enum:
          - score desc
          - record_publication_date desc
          - record_publication_date asc
          - computed__contains_full_text desc
          default: score desc
      - name: page
        in: query
        description: 1-indexed page number.
        required: false
        schema:
          type: integer
          minimum: 1
          default: 1
      - name: per_page
        in: query
        description: Page size. The observed default is 10; the operator has not documented a maximum, so callers should not assume one.
        required: false
        schema:
          type: integer
          minimum: 1
          default: 10
      - name: f
        in: query
        description: Facet filter, sent Rails-style as `f[<facet_id>][]=<value>` — for example `f[f_type_of_work][]=Thesis`. Facet ids are listed in the response's `included[type=facet]` entries.
        required: false
        style: deepObject
        explode: true
        schema:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
      responses:
        '200':
          description: A page of matching records with facets and the service vocabulary.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SearchResponse'
              examples:
                climate:
                  summary: Probed response, trimmed to 3 records
                  externalValue: ../examples/university-of-oxford-ora-search-response.json
        '403':
          description: Cloudflare managed challenge. Observed on other ORA paths (for example /objects/opensearch.xml) for non-browser clients. The service is live; the request was mitigated, not refused by the application.
          content:
            text/html:
              schema:
                type: string
        '429':
          description: Not observed, but ORA's published etiquette states that unexpected spidering or scraping may lead to access being blocked. Documented here so clients back off.
  /objects/{objectId}.json:
    get:
      operationId: getObject
      summary: Retrieve one ORA record
      description: Returns the full metadata document for a single ORA record. Every attribute is wrapped in a `document_value` envelope carrying a human `label` alongside the `value` array.
      tags:
      - Repository
      parameters:
      - name: objectId
        in: path
        required: true
        description: ORA record identifier, in the form `uuid:<uuid>`.
        schema:
          type: string
          pattern: ^uuid:[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$
        example: uuid:ffe1394e-cfea-4e55-a561-2b707325fd1b
      responses:
        '200':
          description: The record.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ObjectResponse'
              examples:
                record:
                  externalValue: ../examples/university-of-oxford-ora-object-response.json
        '404':
          description: No such record. Observed as an HTML error page rather than a JSON error body — the service has no machine-readable error format.
          content:
            text/html:
              schema:
                type: string
components:
  schemas:
    Included:
      type: object
      description: Self-describing vocabulary the service returns alongside results — facets, the available search fields and the available sort orders.
      properties:
        type:
          type: string
          enum:
          - facet
          - search_field
          - sort
        id:
          type: string
        attributes:
          type: object
          properties:
            label:
              type: string
            items:
              type: array
              items:
                $ref: '#/components/schemas/FacetItem'
        links:
          type: object
          properties:
            self:
              type: string
              format: uri
    DocumentValue:
      type: object
      description: The envelope ORA wraps every metadata attribute in.
      properties:
        id:
          type: string
          description: Fragment URI identifying the attribute on the record.
        type:
          type: string
          const: document_value
        attributes:
          type: object
          properties:
            value:
              type: array
              items:
                type: string
            label:
              type: string
              description: Human-facing label for the attribute.
          required:
          - value
      required:
      - attributes
    FacetItem:
      type: object
      properties:
        attributes:
          type: object
          properties:
            label:
              type: string
            value:
              type: string
            hits:
              type: integer
        links:
          type: object
          properties:
            self:
              type: string
              format: uri
    ObjectResponse:
      type: object
      properties:
        links:
          type: object
          properties:
            self:
              type: string
              format: uri
        data:
          $ref: '#/components/schemas/Record'
      required:
      - data
    Pages:
      type: object
      properties:
        current_page:
          type: integer
        next_page:
          type:
          - integer
          - 'null'
        prev_page:
          type:
          - integer
          - 'null'
        total_pages:
          type: integer
        limit_value:
          type: integer
        offset_value:
          type: integer
        total_count:
          type: integer
        first_page?:
          type: boolean
        last_page?:
          type: boolean
    Record:
      type: object
      properties:
        id:
          type: string
          description: ORA record identifier, `uuid:<uuid>`.
        type:
          description: Present on every observed record and null on every observed record. Recorded as observed; do not depend on it.
          type:
          - string
          - 'null'
        attributes:
          type: object
          description: Metadata attributes. `title` is a plain string; every other observed attribute is a DocumentValue. The attribute set varies by record — search results carry a reduced set, the single-record endpoint the full set.
          properties:
            title:
              type: string
          additionalProperties:
            $ref: '#/components/schemas/DocumentValue'
        links:
          type: object
          properties:
            self:
              type: string
              format: uri
      required:
      - id
      - attributes
    SearchResponse:
      type: object
      properties:
        links:
          type: object
          properties:
            self:
              type: string
              format: uri
            next:
              type: string
              format: uri
            prev:
              type: string
              format: uri
            last:
              type: string
              format: uri
        meta:
          type: object
          properties:
            pages:
              $ref: '#/components/schemas/Pages'
        data:
          type: array
          items:
            $ref: '#/components/schemas/Record'
        included:
          type: array
          items:
            $ref: '#/components/schemas/Included'
      required:
      - links
      - meta
      - data