openapi: 3.0.3
info:
  title: MediaWiki Action articles structured-contents API
  description: 'The MediaWiki Action API is the original programmatic interface to MediaWiki, exposed under /w/api.php on every MediaWiki installation. All operations dispatch via the ?action= query parameter. The API supports JSON, XML, and PHP serialization; JSON is the recommended format.


    Wikimedia projects strongly recommend serial (not parallel) calls, the use of maxlag for non-interactive jobs, and a contactable User-Agent header. The Action API remains the primary write interface (edit, upload, login, patrol) even where the Core REST API is also available.'
  version: '1.45'
  x-generated-from: documentation
  x-source-url: https://www.mediawiki.org/wiki/API:Main_page
  x-last-validated: '2026-05-29'
  contact:
    name: Wikimedia Foundation
    url: https://www.mediawiki.org/wiki/API:Etiquette
  license:
    name: CC BY-SA 4.0
    url: https://creativecommons.org/licenses/by-sa/4.0/
servers:
- url: https://en.wikipedia.org/w
  description: English Wikipedia
- url: https://{lang}.wikipedia.org/w
  description: Per-language Wikipedia
  variables:
    lang:
      default: en
      description: Language code
- url: https://commons.wikimedia.org/w
  description: Wikimedia Commons
- url: https://www.wikidata.org/w
  description: Wikidata
- url: https://www.mediawiki.org/w
  description: MediaWiki.org
tags:
- name: structured-contents
  description: (Beta) Structured Contents On-demand API
  externalDocs:
    description: enterprise docs - on-demand api
    url: https://enterprise.wikimedia.com/docs/on-demand/
paths:
  /v2/structured-contents/{name}:
    summary: Structured Contents Article Lookup (Beta)
    description: Lookup for the structured representation of the Article.
    get:
      tags:
      - structured-contents
      parameters:
      - in: path
        name: name
        description: Article name.
        required: true
        schema:
          type: string
          minLength: 1
      - in: query
        name: limit
        description: Limit of articles to return.
        schema:
          type: integer
          default: 3
      - in: query
        name: fields
        description: Select which fields to receive in your response, using JSON dot notation.
        schema:
          type: array
          items:
            type: string
            example: name
      - in: query
        name: filters
        description: Select which projects and languages to receive in your response.
        schema:
          type: array
          items:
            $ref: '#/components/schemas/filter'
      responses:
        200:
          description: OK
          content:
            application/json:
              schema:
                type: array
                format: json
                items:
                  $ref: '#/components/schemas/structured-content'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '[{"identifier":0,"name":"string","in_language":{"identifier":"string"},"is_part_of":{"identifier":"string"},"infoboxes":[],"main_entity":{"identifier":"string","url":"string"},{"name":"Abstract","type":"section","has_parts":[{"type":"paragraph","value":"string","links":[{"url":"string","text":"string"},{"url":"string","text":"string"}]},{ "type": "table", "table_references": [{ "identifier": "string", "confidence_score": 1}]},{"name":"string","type":"section","has_parts":[{"type":"list","has_parts":[{"type":"list_item","value":"string"},{"type":"list_item","value":"string","links":[{"url":"string","text":"string"}]}]}]}]}}] [{"identifier":0,"name":"string","in_language":{"identifier":"string"},"is_part_of":{"identifier":"string"},"infoboxes":[],"main_entity":{"identifier":"string","url":"string"},{"name":"Abstract","type":"section","has_parts":[{"type":"paragraph","value":"string","links":[{"url":"string","text":"string"},{"url":"string","text":"string"}]},{ "type": "table", "table_references": [{ "identifier": "string", "confidence_score": 1}]},{"name":"string","type":"section","has_parts":[{"type":"list","has_parts":[{"type":"list_item","value":"string"},{"type":"list_item","value":"string","links":[{"url":"string","text":"string"}]}]}]}]}}]

                  '
        401:
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status": 401}

                  '
        403:
          description: Forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status": 403}

                  '
        404:
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status": 404}

                  '
        422:
          description: Unprocessable Entity
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status":422}

                  '
        500:
          description: Internal Server Error, Retry Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status":500}

                  '
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    post:
      tags:
      - structured-contents
      parameters:
      - in: path
        name: name
        description: Article name.
        required: true
        schema:
          type: string
          minLength: 1
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                fields:
                  type: array
                  example: '["name","identifier"]'
                  description: Select which fields to receive in your response, using JSON dot notation.
                  items:
                    type: string
                filters:
                  type: array
                  description: Select which projects and languages to receive in your response.
                  items:
                    $ref: '#/components/schemas/filter'
                  example: '[{"field": "in_language.identifier","value": "en"}]'
                limit:
                  type: integer
                  description: Limit of articles to return.
                  default: 3
      responses:
        200:
          description: OK
          content:
            application/json:
              schema:
                type: array
                format: json
                items:
                  $ref: '#/components/schemas/structured-content'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '[{"identifier":0,"name":"string","in_language":{"identifier":"string"},"is_part_of":{"identifier":"string"},"infoboxes":[],"main_entity":{"identifier":"string","url":"string"},{"name":"Abstract","type":"section","has_parts":[{"type":"paragraph","value":"string","links":[{"url":"string","text":"string"},{"url":"string","text":"string"}]},{ "type": "table", "table_references": [{ "identifier": "string", "confidence_score": 1}]},{"name":"string","type":"section","has_parts":[{"type":"list","has_parts":[{"type":"list_item","value":"string"},{"type":"list_item","value":"string","links":[{"url":"string","text":"string"}]}]}]}]}}] [{"identifier":0,"name":"string","in_language":{"identifier":"string"},"is_part_of":{"identifier":"string"},"infoboxes":[],"main_entity":{"identifier":"string","url":"string"},{"name":"Abstract","type":"section","has_parts":[{"type":"paragraph","value":"string","links":[{"url":"string","text":"string"},{"url":"string","text":"string"}]},{ "type": "table", "table_references": [{ "identifier": "string", "confidence_score": 1}]},{"name":"string","type":"section","has_parts":[{"type":"list","has_parts":[{"type":"list_item","value":"string"},{"type":"list_item","value":"string","links":[{"url":"string","text":"string"}]}]}]}]}}]

                  '
        401:
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status": 401}

                  '
        403:
          description: Forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status": 403}

                  '
        404:
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status": 404}

                  '
        422:
          description: Unprocessable Entity
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status":422}

                  '
        500:
          description: Internal Server Error, Retry Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error'
            application/x-ndjson:
              schema:
                type: string
                format: ndjson
                example: '{"message":"string","status":500}

                  '
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    version:
      properties:
        comment:
          type: string
        editor:
          $ref: '#/components/schemas/editor'
        identifier:
          type: integer
        is_flagged_stable:
          type: boolean
        is_minor_edit:
          type: boolean
        noindex:
          type: boolean
        scores:
          $ref: '#/components/schemas/scores'
        maintenance_tags:
          $ref: '#/components/schemas/maintenance_tags'
        tags:
          items:
            type: string
          type: array
      type: object
    citation:
      type: object
      properties:
        identifier:
          type: string
        group:
          type: string
        text:
          type: string
    language:
      type: object
      properties:
        identifier:
          type: string
          example: en
        name:
          type: string
          example: English
        alternate_name:
          type: string
          example: English
        direction:
          type: string
          example: ltr
    entity:
      type: object
      properties:
        identifier:
          type: string
        url:
          type: string
    maintenance_tags:
      properties:
        citation_needed_count:
          type: integer
        pov_count:
          type: integer
        clarification_needed_count:
          type: integer
        update_count:
          type: integer
      type: object
    error:
      type: object
      properties:
        message:
          type: string
        status:
          type: integer
    structured-content:
      properties:
        name:
          type: string
        identifier:
          type: integer
        abstract:
          type: string
        description:
          type: string
        url:
          type: string
        date_created:
          type: string
        date_modified:
          type: string
        infoboxes:
          type: array
          items:
            $ref: '#/components/schemas/part'
        sections:
          type: array
          items:
            $ref: '#/components/schemas/part'
        main_entity:
          $ref: '#/components/schemas/entity'
        additional_entities:
          type: array
          items:
            $ref: '#/components/schemas/entity'
        image:
          $ref: '#/components/schemas/image'
        version:
          $ref: '#/components/schemas/version'
        is_part_of:
          $ref: '#/components/schemas/project'
        in_language:
          $ref: '#/components/schemas/language'
        license:
          $ref: '#/components/schemas/license'
        references:
          $ref: '#/components/schemas/reference'
        tables:
          $ref: '#/components/schemas/table'
      type: object
    scores:
      properties:
        revertrisk:
          $ref: '#/components/schemas/revertrisk'
        referencerisk:
          $ref: '#/components/schemas/referencerisk'
        referenceneed:
          $ref: '#/components/schemas/referenceneed'
      type: object
    referencerisk:
      properties:
        reference_risk_score:
          type: number
      type: object
    referenceneed:
      properties:
        reference_need_score:
          type: number
      type: object
    image:
      type: object
      properties:
        content_url:
          description: Image URL
          format: uri
          type: string
          example: https://upload.wikimedia.org/wikipedia/en/thumb/0/03/Flag_of_Italy.svg/40px-Flag_of_Italy.svg.png
        identifier:
          type: string
          format: uuid
          description: Unique identifier for the image
          example: 6c71e85942c77b40266b6d6150405719897682f4b56989100f7c5de97fa631d0
        name:
          type: string
          description: Filename of the image
          example: ./File:Flag_of_Italy.svg
        width:
          description: image width in pixels
          type: integer
          example: 156
        height:
          description: image height in pixels
          type: integer
          example: 255
        thumbnail:
          $ref: '#/components/schemas/thumbnail'
        caption:
          type: string
          description: caption describing the image
          example: Flag of Italy
        alternative_text:
          type: string
          description: Alternative text description of the image for accessibility
          example: a flag divided in three vertical sections colored green, white, and red from left to right
        encoding_format:
          type: string
          format: mime_type
          description: MIME type or encoding format of the image, constructed from the url
          example: image/png
        media_type:
          type: string
          enum: unknown, bitmap, drawing, audio, video, multimedia, office, text, executable, archive
          description: Mediawiki media type of the image
          example: drawing
    part:
      type: object
      properties:
        name:
          type: string
        type:
          type: string
        value:
          type: string
        values:
          type: array
          items:
            type: string
        has_parts:
          type: array
          items:
            type: object
        images:
          type: array
          items:
            $ref: '#/components/schemas/image'
        links:
          type: array
          items:
            $ref: '#/components/schemas/link'
        citations:
          type: array
          items:
            $ref: '#/components/schemas/citation'
    filter:
      type: object
      properties:
        field:
          type: string
        value:
          type: string
    table:
      type: object
      properties:
        identifier:
          type: string
        headers:
          type: array
          items:
            type: array
            items:
              type: object
              properties:
                value:
                  type: string
        rows:
          type: array
          items:
            type: array
            items:
              type: object
              properties:
                value:
                  type: string
        confidence_score:
          type: number
          minimum: 0
          maximum: 1
    revertrisk:
      properties:
        prediction:
          type: boolean
        probability:
          properties:
            'false':
              type: number
            'true':
              type: number
          type: object
      type: object
    editor:
      properties:
        date_started:
          type: string
        edit_count:
          type: integer
        groups:
          items:
            type: string
          type: array
        identifier:
          type: integer
        is_anonymous:
          type: boolean
        is_bot:
          type: boolean
        name:
          type: string
      type: object
    reference:
      type: object
      properties:
        identifier:
          type: string
        group:
          type: string
        type:
          type: string
        metadata:
          type: object
        text:
          type: object
          properties:
            value:
              type: string
            links:
              type: array
              items:
                $ref: '#/components/schemas/link'
        source:
          type: object
          properties:
            value:
              type: string
            links:
              type: array
              items:
                $ref: '#/components/schemas/link'
        parent_reference:
          type: string
    link:
      type: object
      properties:
        url:
          type: string
        text:
          type: string
        images:
          type: array
          items:
            $ref: '#/components/schemas/image'
    license:
      type: object
      properties:
        identifier:
          type: string
          example: CC-BY-SA-4.0
        name:
          type: string
          example: Creative Commons Attribution-ShareAlike License 4.0
        url:
          type: string
          example: https://creativecommons.org/licenses/by-sa/4.0/
    project:
      type: object
      properties:
        identifier:
          type: string
          example: enwiki
        code:
          type: string
          example: wiki
        name:
          type: string
          example: Wikipedia
        url:
          type: string
          example: https://en.wikipedia.org
        in_language:
          $ref: '#/components/schemas/language'
    thumbnail:
      type: object
      properties:
        contentUrl:
          type: string
          format: uri
          description: Thumbnail URL
        width:
          description: Thumbnail width in pixels
          type: integer
          example: 156
        height:
          description: Thumbnail height in pixels
          type: integer
          example: 255
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: OAuth 2.0 bearer token from meta.wikimedia.org
    CookieAuth:
      type: apiKey
      in: cookie
      name: '{wiki}wikiUserID'
      description: Session cookie obtained via action=login or action=clientlogin