Crossref

Crossref Prefixes API

Endpoints that expose prefix related data

GitHub OpenAPI

Operations 2

GET /prefixes/{prefix}/works Get prefixes by prefix works #
GET /prefixes/{prefix} Get prefixes by prefix #

Documentation

📖
Documentation
https://www.crossref.org/documentation/retrieve-metadata/rest-api/

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/crossref/refs/heads/main/openapi/crossref-prefixes-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/crossref/refs/heads/main/json-schema/crossref-work-schema.json

Other Resources

🔗
SwaggerUI
https://api.crossref.org/swagger-ui/
🔗
PolitePool
https://www.crossref.org/documentation/retrieve-metadata/rest-api/tips-for-using-the-crossref-rest-api/#etiquette
🔗
Tips
https://www.crossref.org/documentation/retrieve-metadata/rest-api/tips-for-using-the-crossref-rest-api/
🔗
Rules
https://raw.githubusercontent.com/api-evangelist/crossref/refs/heads/main/rules/crossref-rules.yml
🔗
JSONLD
https://raw.githubusercontent.com/api-evangelist/crossref/refs/heads/main/json-ld/crossref-context.jsonld

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OpenAPI Specification

crossref-prefixes-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Crossref Prefixes API
  description: The Crossref REST API is one of a variety of tools and APIs that allow anybody to search and reuse our members' metadata in sophisticated ways.
  contact:
    name: Crossref
    url: https://crossref.org
    email: support@crossref.org
  version: 3.32.0
servers:
- url: /
tags:
- name: Prefixes
  description: Endpoints that expose prefix related data
paths:
  /prefixes/{prefix}/works:
    get:
      tags:
      - Prefixes
      description: Returns list of works associated with specified {prefix}.
      parameters:
      - name: rows
        in: query
        description: The number of rows per page
        schema:
          type: integer
          format: int64
      - name: order
        in: query
        description: Combined with sort can be used to specify the order of results, e.g. asc or desc
        schema:
          pattern: (asc|desc)
          type: string
      - name: facet
        in: query
        description: Exposes the ability to retrieve counts for pre-defined facets e.g. `type-name:*` returns counts of all works by type
        schema:
          type: string
      - name: sample
        in: query
        description: Exposes the ability to return `N` randomly sampled items
        schema:
          type: integer
          format: int64
      - name: sort
        in: query
        description: Exposes the ability to sort results by a certain field, e.g. `score`
        schema:
          type: string
      - name: offset
        in: query
        description: The number of rows to skip before returning
        schema:
          type: integer
          format: int64
      - name: mailto
        in: query
        description: The email address to identify yourself and be in the "polite pool"
        schema:
          pattern: ^[A-Za-z0-9._%+-]+@[A-Za-z0-9-]+\.[A-Za-z]{2,6}$
          type: string
      - name: select
        in: query
        description: Exposes the ability to select certain fields, supports a comma separated list of fields, e.g. `DOI,volume`
        schema:
          pattern: ^\w+(,\w+)*$
          type: string
      - name: query
        in: query
        description: Exposes the ability to free text query certain fields
        schema:
          type: string
      - name: filter
        in: query
        description: Exposes the ability to filter by certain fields, supports a comma separated list of lucene filters, e.g. `content-domain:psychoceramics.labs.crossref.org`
        schema:
          type: string
      - name: cursor
        in: query
        description: Exposes the ability to deep page through large result sets, where offset would cause performance problems
        schema:
          type: string
      - name: prefix
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: A list of works
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WorksMessage'
      summary: Get prefixes by prefix works
      x-summary-source: derived
      operationId: getPrefixesByPrefixWorks
      x-operation-id-source: derived
  /prefixes/{prefix}:
    get:
      tags:
      - Prefixes
      description: Returns metadata for the DOI owner prefix, as an example use prefix 10.1016
      parameters:
      - name: prefix
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: The prefix data identified by {prefix}.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PrefixMessage'
        '404':
          description: The prefix data identified by {prefix} does not exist.
          content: {}
      summary: Get prefixes by prefix
      x-summary-source: derived
      operationId: getPrefixesByPrefix
      x-operation-id-source: derived
components:
  schemas:
    Resources:
      required:
      - primary
      type: object
      properties:
        primary:
          $ref: '#/components/schemas/PrimaryResource'
        secondary:
          type: array
          items:
            $ref: '#/components/schemas/SecondaryResource'
      additionalProperties: false
    WorkFunder:
      type: object
      properties:
        name:
          type: string
        DOI:
          type: string
        doi-asserted-by:
          type: string
        award:
          type: array
          items:
            type: string
        id:
          type: array
          items:
            $ref: '#/components/schemas/FunderIdentifier'
      additionalProperties: false
    WorkRelationObject:
      required:
      - asserted-by
      - id
      - id-type
      type: object
      properties:
        id-type:
          type: string
        id:
          type: string
        asserted-by:
          type: string
      additionalProperties: false
    SecondaryResource:
      required:
      - URL
      - label
      type: object
      properties:
        URL:
          type: string
        label:
          type: string
      additionalProperties: false
    WorkUpdate:
      required:
      - DOI
      - label
      - type
      - updated
      type: object
      properties:
        label:
          type: string
        DOI:
          type: string
        type:
          type: string
        updated:
          $ref: '#/components/schemas/Date'
      additionalProperties: false
    WorkLink:
      required:
      - URL
      - content-type
      - content-version
      - intended-application
      type: object
      properties:
        URL:
          type: string
        content-type:
          type: string
        content-version:
          type: string
        intended-application:
          type: string
      additionalProperties: false
    WorkStandardsBody:
      type: object
      properties:
        name:
          type: string
        acronym:
          type: array
          items:
            type: string
      additionalProperties: false
    WorkAssertionExplanation:
      required:
      - URL
      type: object
      properties:
        URL:
          type: string
      additionalProperties: false
    DateParts:
      required:
      - date-parts
      type: object
      properties:
        date-parts:
          type: array
          items:
            type: array
            items:
              type: integer
              format: int64
      additionalProperties: false
    DateAndVersion:
      required:
      - date-parts
      - date-time
      - timestamp
      - version
      type: object
      properties:
        date-parts:
          type: array
          items:
            type: array
            items:
              type: integer
              format: int64
        date-time:
          type: string
          format: date-time
        timestamp:
          type: integer
          format: int64
        version:
          type: string
      additionalProperties: false
    WorksMessage:
      required:
      - message
      - message-type
      - message-version
      - status
      type: object
      properties:
        status:
          type: string
        message-type:
          pattern: work-list
          type: string
        message-version:
          type: string
        message:
          $ref: '#/components/schemas/Works'
      additionalProperties: false
    WorkAssertionGroup:
      required:
      - name
      type: object
      properties:
        name:
          type: string
        label:
          type: string
      additionalProperties: false
    WorkInstitution:
      required:
      - name
      type: object
      properties:
        name:
          type: string
        place:
          type: array
          items:
            type: string
        department:
          type: array
          items:
            type: string
        acronym:
          type: array
          items:
            type: string
      additionalProperties: false
    WorkClinicalTrial:
      required:
      - clinical-trial-number
      - registry
      type: object
      properties:
        clinical-trial-number:
          type: string
        registry:
          type: string
        type:
          type: string
      additionalProperties: false
    Affiliation:
      required:
      - name
      type: object
      properties:
        name:
          type: string
      additionalProperties: false
    WorkAssertion:
      required:
      - name
      type: object
      properties:
        group:
          $ref: '#/components/schemas/WorkAssertionGroup'
        explanation:
          $ref: '#/components/schemas/WorkAssertionExplanation'
        name:
          type: string
        value:
          type: string
        URL:
          type: string
        order:
          type: integer
          format: int64
      additionalProperties: false
    Reference:
      type: object
      properties:
        issn:
          type: string
        standards-body:
          type: string
        issue:
          type: string
        key:
          type: string
        series-title:
          type: string
        isbn-type:
          type: string
        doi-asserted-by:
          type: string
        first-page:
          type: string
        type:
          type: string
        isbn:
          type: string
        doi:
          type: string
        component:
          type: string
        article-title:
          type: string
        volume-title:
          type: string
        volume:
          type: string
        author:
          type: string
        standard-designator:
          type: string
        year:
          type: string
        unstructured:
          type: string
        edition:
          type: string
        journal-title:
          type: string
        issn-type:
          type: string
      additionalProperties: false
    WorkLicense:
      required:
      - URL
      - content-version
      - delay-in-days
      type: object
      properties:
        URL:
          type: string
        start:
          $ref: '#/components/schemas/Date'
        delay-in-days:
          type: integer
          format: int64
        content-version:
          type: string
      additionalProperties: false
    VersionInfo:
      required:
      - version
      type: object
      properties:
        version:
          type: string
        language:
          type: string
        version-description:
          type: array
          items:
            $ref: '#/components/schemas/VersionInfoDescription'
      additionalProperties: false
    WorkISSNType:
      required:
      - type
      - value
      type: object
      properties:
        type:
          type: string
        value:
          type: array
          items:
            type: string
      additionalProperties: false
    PrefixMessage:
      required:
      - message
      - message-type
      - message-version
      - status
      type: object
      properties:
        status:
          type: string
        message-type:
          pattern: prefix
          type: string
        message-version:
          type: string
        message:
          $ref: '#/components/schemas/Prefix'
      additionalProperties: false
    WorkJournalIssue:
      required:
      - issue
      type: object
      properties:
        issue:
          type: string
      additionalProperties: false
    Works:
      required:
      - items
      - items-per-page
      - query
      - total-results
      type: object
      properties:
        items-per-page:
          type: integer
          format: int64
        query:
          $ref: '#/components/schemas/Query'
        total-results:
          type: integer
          format: int64
        next-cursor:
          type: string
          description: Used to navigate to the next page of results when using cursor deep paging
        items:
          type: array
          items:
            $ref: '#/components/schemas/Work'
      additionalProperties: false
    Date:
      required:
      - date-parts
      - date-time
      - timestamp
      type: object
      properties:
        date-parts:
          type: array
          items:
            type: array
            items:
              type: integer
              format: int64
        date-time:
          type: string
          format: date-time
        timestamp:
          type: integer
          format: int64
      additionalProperties: false
    FunderIdentifier:
      required:
      - asserted-by
      - id
      - id-type
      type: object
      properties:
        id:
          type: string
        id-type:
          type: string
        asserted-by:
          type: string
      additionalProperties: false
    VersionInfoDescription:
      type: object
      properties:
        language:
          type: string
        description:
          type: string
      additionalProperties: false
    WorkFreeToRead:
      type: object
      properties:
        start-date:
          $ref: '#/components/schemas/DateParts'
        end-date:
          $ref: '#/components/schemas/DateParts'
      additionalProperties: false
    PrimaryResource:
      required:
      - URL
      type: object
      properties:
        URL:
          type: string
      additionalProperties: false
    WorkDomain:
      required:
      - domain
      type: object
      properties:
        domain:
          type: array
          items:
            type: string
        crossmark-restriction:
          type: boolean
      additionalProperties: false
    Work:
      required:
      - DOI
      - URL
      - created
      - deposited
      - indexed
      - issued
      - member
      - prefix
      - publisher
      - resource
      - score
      - source
      - type
      type: object
      properties:
        institution:
          type: array
          items:
            $ref: '#/components/schemas/WorkInstitution'
        indexed:
          $ref: '#/components/schemas/DateAndVersion'
        posted:
          $ref: '#/components/schemas/DateParts'
        publisher-location:
          type: string
        update-to:
          type: array
          items:
            $ref: '#/components/schemas/WorkUpdate'
        standards-body:
          type: array
          items:
            $ref: '#/components/schemas/WorkStandardsBody'
        edition-number:
          type: string
        group-title:
          type: array
          items:
            type: string
        reference-count:
          type: integer
          format: int64
        publisher:
          type: string
        issue:
          type: string
        isbn-type:
          type: array
          items:
            $ref: '#/components/schemas/WorkISSNType'
        license:
          type: array
          items:
            $ref: '#/components/schemas/WorkLicense'
        funder:
          type: array
          items:
            $ref: '#/components/schemas/WorkFunder'
        content-domain:
          $ref: '#/components/schemas/WorkDomain'
        chair:
          type: array
          items:
            $ref: '#/components/schemas/Author'
        short-container-title:
          type: string
        accepted:
          $ref: '#/components/schemas/DateParts'
        content-updated:
          $ref: '#/components/schemas/DateParts'
        published-print:
          $ref: '#/components/schemas/DateParts'
        abstract:
          type: string
        DOI:
          type: string
          description: The DOI identifier associated with the work
        type:
          type: string
        created:
          $ref: '#/components/schemas/Date'
        approved:
          $ref: '#/components/schemas/DateParts'
        page:
          type: string
        update-policy:
          type: string
        source:
          type: string
        is-referenced-by-count:
          type: integer
          format: int64
        title:
          type: array
          items:
            type: string
        prefix:
          type: string
        volume:
          type: string
        clinical-trial-number:
          type: array
          items:
            $ref: '#/components/schemas/WorkClinicalTrial'
        author:
          type: array
          items:
            $ref: '#/components/schemas/Author'
        member:
          type: string
        content-created:
          $ref: '#/components/schemas/DateParts'
        published-online:
          $ref: '#/components/schemas/DateParts'
        reference:
          $ref: '#/components/schemas/Reference'
        container-title:
          type: array
          items:
            type: string
        review:
          $ref: '#/components/schemas/WorkReview'
        original-title:
          type: array
          items:
            type: string
        language:
          type: string
        link:
          type: array
          items:
            $ref: '#/components/schemas/WorkLink'
        deposited:
          $ref: '#/components/schemas/Date'
        score:
          type: integer
          format: int64
        degree:
          type: string
        resource:
          $ref: '#/components/schemas/Resources'
        subtitle:
          type: array
          items:
            type: string
        translator:
          type: array
          items:
            $ref: '#/components/schemas/Author'
        free-to-read:
          $ref: '#/components/schemas/WorkFreeToRead'
        editor:
          type: array
          items:
            $ref: '#/components/schemas/Author'
        proceedings-subject:
          type: string
        component-number:
          type: string
        short-title:
          type: array
          items:
            type: string
        issued:
          $ref: '#/components/schemas/DateParts'
        ISBN:
          type: array
          items:
            type: string
        references-count:
          type: integer
          format: int64
        part-number:
          type: string
        issue-title:
          type: array
          items:
            type: string
        journal-issue:
          $ref: '#/components/schemas/WorkJournalIssue'
        alternative-id:
          type: array
          items:
            type: string
        version:
          $ref: '#/components/schemas/VersionInfo'
        URL:
          type: string
        archive:
          type: array
          items:
            type: string
        relation:
          $ref: '#/components/schemas/WorkRelation'
        ISSN:
          type: array
          items:
            type: string
        issn-type:
          type: array
          items:
            $ref: '#/components/schemas/WorkISSNType'
        subject:
          type: array
          items:
            type: string
        published-other:
          $ref: '#/components/schemas/DateParts'
        published:
          $ref: '#/components/schemas/DateParts'
        assertion:
          type: array
          items:
            $ref: '#/components/schemas/WorkAssertion'
        subtype:
          type: string
        article-number:
          type: string
      additionalProperties: false
    Query:
      required:
      - search-terms
      - start-index
      type: object
      properties:
        start-index:
          type: integer
          format: int64
        search-terms:
          type: string
      additionalProperties: false
    Author:
      required:
      - affiliation
      - sequence
      type: object
      properties:
        ORCID:
          type: string
        suffix:
          type: string
        given:
          type: string
        family:
          type: string
        affiliation:
          type: array
          items:
            $ref: '#/components/schemas/Affiliation'
        name:
          type: string
        authenticated-orcid:
          type: boolean
        prefix:
          type: string
        sequence:
          type: string
      additionalProperties: false
    WorkReview:
      type: object
      properties:
        type:
          type: string
        running-number:
          type: string
        revision-round:
          type: string
        stage:
          type: string
        competing-interest-statement:
          type: string
        recommendation:
          type: string
        language:
          type: string
      additionalProperties: false
    WorkRelation:
      type: object
      additionalProperties:
        $ref: '#/components/schemas/WorkRelationObject'
    Prefix:
      required:
      - member
      - name
      - prefix
      type: object
      properties:
        member:
          type: string
        name:
          type: string
        prefix:
          type: string
      additionalProperties: false
x-original-swagger-version: '2.0'