openapi: 3.1.0
info:
  title: Wikidata REST API & MediaWiki Descriptions Statements API
  description: Wikidata provides multiple APIs for accessing its structured knowledge graph. The Wikibase REST API (OpenAPI-based) provides entity read/write operations. The MediaWiki Action API provides entity retrieval, editing, and search via the wbgetentities, wbsearchentities, and wbeditentity actions. The SPARQL endpoint at query.wikidata.org supports SPARQL 1.1 queries.
  version: '1.0'
  contact:
    name: Wikidata Support
    url: https://www.wikidata.org/wiki/Wikidata:Contact_the_development_team
  license:
    name: CC0 1.0 Universal (Public Domain)
    url: https://creativecommons.org/publicdomain/zero/1.0/
servers:
- url: https://www.wikidata.org/w/rest.php/wikibase/v0
  description: Wikibase REST API (Beta)
- url: https://www.wikidata.org/w/api.php
  description: MediaWiki Action API
tags:
- name: Statements
  description: Statement (claim) operations
paths:
  /entities/items/{item_id}/statements:
    get:
      operationId: getItemStatements
      summary: Wikidata Get Statements for an Item
      description: Returns all statements (claims) for a Wikidata item, optionally filtered by property. Statements include main snak, qualifiers, and references.
      tags:
      - Statements
      parameters:
      - $ref: '#/components/parameters/ItemId'
      - name: property
        in: query
        schema:
          type: string
          pattern: ^P\d+$
        description: Filter statements by property ID
        example: P31
      responses:
        '200':
          description: Item statements
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  type: array
                  items:
                    $ref: '#/components/schemas/Statement'
              examples:
                getItemStatements200Example:
                  summary: Default getItemStatements 200 response
                  x-microcks-default: true
                  value:
                    id: Q42
                    type: item
                    labels:
                      en: Douglas Adams
                      fr: Douglas Adams
                      de: Douglas Adams
                    descriptions:
                      en: English author and humorist
                      fr: auteur et humoriste anglais
                    aliases:
                      en:
                      - DNA
                      - Douglas Noel Adams
                    statements:
                      P31:
                      - id: Q42$F078E5B3-F9A8-480E-B7AC-D97778CBBEF9
                        rank: normal
                        property:
                          id: P31
                        value:
                          type: value
                          content: Q5
                    sitelinks:
                      enwiki:
                        title: Douglas Adams
                        url: https://en.wikipedia.org/wiki/Douglas_Adams
        '404':
          description: Item not found
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    post:
      operationId: addItemStatement
      summary: Wikidata Add a Statement to an Item
      description: Adds a new statement (claim) to a Wikidata item.
      tags:
      - Statements
      security:
      - OAuth2: []
      - MediaWikiSession: []
      parameters:
      - $ref: '#/components/parameters/ItemId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/StatementCreate'
      responses:
        '201':
          description: Statement added
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Statement'
              examples:
                addItemStatement201Example:
                  summary: Default addItemStatement 201 response
                  x-microcks-default: true
                  value:
                    id: Q42$F078E5B3-F9A8-480E-B7AC-D97778CBBEF9
                    rank: normal
                    property:
                      id: P31
                    value:
                      type: value
                      content: Q5
                    qualifiers: []
                    references: []
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /statements/{statement_id}:
    get:
      operationId: getStatement
      summary: Wikidata Get a Single Statement
      description: Returns a single statement by its globally unique statement ID.
      tags:
      - Statements
      parameters:
      - name: statement_id
        in: path
        required: true
        schema:
          type: string
        description: Statement ID (Q{itemId}${guid})
        example: Q42$F078E5B3-F9A8-480E-B7AC-D97778CBBEF9
      responses:
        '200':
          description: Statement
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Statement'
              examples:
                getStatement200Example:
                  summary: Default getStatement 200 response
                  x-microcks-default: true
                  value:
                    id: Q42$F078E5B3-F9A8-480E-B7AC-D97778CBBEF9
                    rank: normal
                    property:
                      id: P31
                    value:
                      type: value
                      content: Q5
                    qualifiers: []
                    references: []
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    delete:
      operationId: deleteStatement
      summary: Wikidata Delete a Statement
      description: Removes a statement from its parent item.
      tags:
      - Statements
      security:
      - OAuth2: []
      - MediaWikiSession: []
      parameters:
      - name: statement_id
        in: path
        required: true
        schema:
          type: string
        example: Q42$F078E5B3-F9A8-480E-B7AC-D97778CBBEF9
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                comment:
                  type: string
                  description: Edit summary
      responses:
        '200':
          description: Statement deleted
        '404':
          description: Statement not found
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    DataValue:
      type: object
      properties:
        type:
          type: string
          enum:
          - value
          - somevalue
          - novalue
        content:
          description: Value content — depends on property datatype
          oneOf:
          - type: string
          - type: number
          - type: object
          - type: 'null'
    StatementCreate:
      type: object
      required:
      - property
      - value
      properties:
        property:
          type: object
          required:
          - id
          properties:
            id:
              type: string
              pattern: ^P\d+$
        value:
          $ref: '#/components/schemas/DataValue'
        rank:
          type: string
          enum:
          - preferred
          - normal
          - deprecated
          default: normal
        qualifiers:
          type: array
          items:
            type: object
        references:
          type: array
          items:
            type: object
        comment:
          type: string
    Statement:
      type: object
      properties:
        id:
          type: string
          description: Globally unique statement ID
        rank:
          type: string
          enum:
          - preferred
          - normal
          - deprecated
        property:
          type: object
          properties:
            id:
              type: string
              pattern: ^P\d+$
        value:
          $ref: '#/components/schemas/DataValue'
        qualifiers:
          type: array
          items:
            type: object
            properties:
              property:
                type: object
                properties:
                  id:
                    type: string
              value:
                $ref: '#/components/schemas/DataValue'
        references:
          type: array
          items:
            type: object
            properties:
              hash:
                type: string
              parts:
                type: array
                items:
                  type: object
  parameters:
    ItemId:
      name: item_id
      in: path
      required: true
      description: Wikidata item ID
      schema:
        type: string
        pattern: ^Q\d+$
      example: Q42
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://www.mediawiki.org/w/index.php?title=Special:OAuth/authorize
          tokenUrl: https://www.mediawiki.org/w/index.php?title=Special:OAuth/token
          scopes:
            editpage: Edit Wikidata items
            createeditmovepage: Create new items
    MediaWikiSession:
      type: apiKey
      in: cookie
      name: wikidataSession