openapi: 3.2.0
info:
  title: Greenbrier Cos Taxonomies API
  version: wp/v2
  contact:
    name: The Greenbrier Companies
    url: https://www.gbrx.com/contact/
  x-api-evangelist-note: 'Third-party profile. The Greenbrier Companies publishes no developer program; this documents the anonymously readable WordPress REST surface behind www.gbrx.com. Every path, parameter, type, default and enum below was read from the server''s own published route descriptor on 2026-09-12 — nothing is invented. Only the GET methods are documented: write methods exist on the same routes but require WordPress application-password credentials and are not part of the public surface.'
  x-derived-from: https://www.gbrx.com/wp-json/ (route-index document, saved verbatim at openapi/_original/greenbrier-cos-wp-json-route-index.json) + live anonymous GET samples
  x-derived-on: '2026-09-12'
  description: 'Operations tagged Taxonomies across 2 of this provider''s published API definitions: greenbrier-cos-press-room-api-openapi.yml, greenbrier-cos-railcar-catalog-api-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://www.gbrx.com/wp-json
  description: Greenbrier WordPress REST API
tags:
- name: Taxonomies
  description: Post categories and tags.
paths:
  /wp/v2/categories:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: listCategories
      summary: List categories
      description: Retrieve the post categories — Press Room / Perspectives & Updates and siblings.
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: hide_empty
        in: query
        description: Whether to hide terms not assigned to any posts.
        schema:
          type: boolean
          default: false
      - name: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: order
        in: query
        description: Order sort attribute ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort collection by term attribute.
        schema:
          type: string
          enum:
          - id
          - include
          - name
          - slug
          - include_slugs
          - term_group
          - description
          - count
          default: name
      - name: page
        in: query
        description: Current page of the collection.
        schema:
          type: integer
          default: 1
          minimum: 1
      - name: parent
        in: query
        description: Limit result set to terms assigned to a specific parent.
        schema:
          type: integer
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set.
        schema:
          type: integer
          default: 10
          minimum: 1
          maximum: 100
      - name: post
        in: query
        description: Limit result set to terms assigned to a specific post.
        schema:
          type: integer
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: slug
        in: query
        description: Limit result set to terms with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TaxonomyTerm'
          headers:
            X-WP-Total:
              description: Total number of matching records.
              schema:
                type: integer
            X-WP-TotalPages:
              description: Total number of pages at the requested per_page size.
              schema:
                type: integer
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/categories/{id}:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: getCategory
      summary: Get a category
      description: Retrieve one category by ID.
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: id
        in: path
        description: Unique identifier for the term.
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaxonomyTerm'
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/tags:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: listTags
      summary: List tags
      description: Retrieve post tag terms.
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: hide_empty
        in: query
        description: Whether to hide terms not assigned to any posts.
        schema:
          type: boolean
          default: false
      - name: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: offset
        in: query
        description: Offset the result set by a specific number of items.
        schema:
          type: integer
      - name: order
        in: query
        description: Order sort attribute ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort collection by term attribute.
        schema:
          type: string
          enum:
          - id
          - include
          - name
          - slug
          - include_slugs
          - term_group
          - description
          - count
          default: name
      - name: page
        in: query
        description: Current page of the collection.
        schema:
          type: integer
          default: 1
          minimum: 1
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set.
        schema:
          type: integer
          default: 10
          minimum: 1
          maximum: 100
      - name: post
        in: query
        description: Limit result set to terms assigned to a specific post.
        schema:
          type: integer
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: slug
        in: query
        description: Limit result set to terms with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TaxonomyTerm'
          headers:
            X-WP-Total:
              description: Total number of matching records.
              schema:
                type: integer
            X-WP-TotalPages:
              description: Total number of pages at the requested per_page size.
              schema:
                type: integer
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/tags/{id}:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: getTag
      summary: Get a tag
      description: Retrieve one tag by ID.
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: id
        in: path
        description: Unique identifier for the term.
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaxonomyTerm'
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/railcar_type:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: listRailcarTypes
      summary: List railcar types
      description: Retrieve the railcar_type taxonomy terms — the equipment classes Greenbrier builds (agricultural covered hopper, pressure tank car, mill gondola, and so on).
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: hide_empty
        in: query
        description: Whether to hide terms not assigned to any posts.
        schema:
          type: boolean
          default: false
      - name: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: offset
        in: query
        description: Offset the result set by a specific number of items.
        schema:
          type: integer
      - name: order
        in: query
        description: Order sort attribute ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort collection by term attribute.
        schema:
          type: string
          enum:
          - id
          - include
          - name
          - slug
          - include_slugs
          - term_group
          - description
          - count
          default: name
      - name: page
        in: query
        description: Current page of the collection.
        schema:
          type: integer
          default: 1
          minimum: 1
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set.
        schema:
          type: integer
          default: 10
          minimum: 1
          maximum: 100
      - name: post
        in: query
        description: Limit result set to terms assigned to a specific post.
        schema:
          type: integer
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: slug
        in: query
        description: Limit result set to terms with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: A page of railcar_type terms.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TaxonomyTerm_2'
          headers:
            X-WP-Total:
              description: Total number of matching records.
              schema:
                type: integer
            X-WP-TotalPages:
              description: Total number of pages at the requested per_page size.
              schema:
                type: integer
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/railcar_type/{id}:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: getRailcarType
      summary: Get a railcar type
      description: Retrieve one railcar_type term by ID.
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: id
        in: path
        description: Unique identifier for the term.
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaxonomyTerm_2'
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/cargo_type:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: listCargoTypes
      summary: List cargo types
      description: Retrieve the cargo_type taxonomy terms — the commodities Greenbrier railcars are built to haul (aggregate, ethanol, grain, plastic pellets, and so on).
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: hide_empty
        in: query
        description: Whether to hide terms not assigned to any posts.
        schema:
          type: boolean
          default: false
      - name: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: offset
        in: query
        description: Offset the result set by a specific number of items.
        schema:
          type: integer
      - name: order
        in: query
        description: Order sort attribute ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort collection by term attribute.
        schema:
          type: string
          enum:
          - id
          - include
          - name
          - slug
          - include_slugs
          - term_group
          - description
          - count
          default: name
      - name: page
        in: query
        description: Current page of the collection.
        schema:
          type: integer
          default: 1
          minimum: 1
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set.
        schema:
          type: integer
          default: 10
          minimum: 1
          maximum: 100
      - name: post
        in: query
        description: Limit result set to terms assigned to a specific post.
        schema:
          type: integer
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: slug
        in: query
        description: Limit result set to terms with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: A page of cargo_type terms.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TaxonomyTerm_2'
          headers:
            X-WP-Total:
              description: Total number of matching records.
              schema:
                type: integer
            X-WP-TotalPages:
              description: Total number of pages at the requested per_page size.
              schema:
                type: integer
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/cargo_type/{id}:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: getCargoType
      summary: Get a cargo type
      description: Retrieve one cargo_type term by ID.
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: id
        in: path
        description: Unique identifier for the term.
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaxonomyTerm_2'
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/fluid_capacity:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: listFluidCapacities
      summary: List fluid capacities
      description: Retrieve the fluid_capacity taxonomy terms used to classify tank cars by volume.
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: hide_empty
        in: query
        description: Whether to hide terms not assigned to any posts.
        schema:
          type: boolean
          default: false
      - name: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: offset
        in: query
        description: Offset the result set by a specific number of items.
        schema:
          type: integer
      - name: order
        in: query
        description: Order sort attribute ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort collection by term attribute.
        schema:
          type: string
          enum:
          - id
          - include
          - name
          - slug
          - include_slugs
          - term_group
          - description
          - count
          default: name
      - name: page
        in: query
        description: Current page of the collection.
        schema:
          type: integer
          default: 1
          minimum: 1
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set.
        schema:
          type: integer
          default: 10
          minimum: 1
          maximum: 100
      - name: post
        in: query
        description: Limit result set to terms assigned to a specific post.
        schema:
          type: integer
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: slug
        in: query
        description: Limit result set to terms with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TaxonomyTerm_2'
          headers:
            X-WP-Total:
              description: Total number of matching records.
              schema:
                type: integer
            X-WP-TotalPages:
              description: Total number of pages at the requested per_page size.
              schema:
                type: integer
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/cargo_capacity:
    servers:
    - url: https://www.gbrx.com/wp-json
      description: Greenbrier WordPress REST API
    get:
      operationId: listCargoCapacities
      summary: List cargo capacities
      description: Retrieve the cargo_capacity taxonomy terms used to classify railcars by load capacity.
      tags:
      - Taxonomies
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: hide_empty
        in: query
        description: Whether to hide terms not assigned to any posts.
        schema:
          type: boolean
          default: false
      - name: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: offset
        in: query
        description: Offset the result set by a specific number of items.
        schema:
          type: integer
      - name: order
        in: query
        description: Order sort attribute ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort collection by term attribute.
        schema:
          type: string
          enum:
          - id
          - include
          - name
          - slug
          - include_slugs
          - term_group
          - description
          - count
          default: name
      - name: page
        in: query
        description: Current page of the collection.
        schema:
          type: integer
          default: 1
          minimum: 1
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set.
        schema:
          type: integer
          default: 10
          minimum: 1
          maximum: 100
      - name: post
        in: query
        description: Limit result set to terms assigned to a specific post.
        schema:
          type: integer
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: slug
        in: query
        description: Limit result set to terms with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TaxonomyTerm_2'
          headers:
            X-WP-Total:
              description: Total number of matching records.
              schema:
                type: integer
            X-WP-TotalPages:
              description: Total number of pages at the requested per_page size.
              schema:
                type: integer
        '400':
          description: Invalid parameter (rest_invalid_param).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No route or resource matched (rest_no_route / rest_post_invalid_id).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    Error:
      type: object
      description: WordPress REST error envelope (WP_Error serialized).
      properties:
        code:
          type: string
        message:
          type: string
        data:
          type: object
          properties:
            status:
              type: integer
    TaxonomyTerm_2:
      type: object
      properties:
        id:
          type: integer
        count:
          type: integer
        description:
          type: string
        link:
          type: string
          format: uri
        name:
          type: string
        slug:
          type: string
        taxonomy:
          type: string
        meta:
          type: array
          items:
            type: string
        acf:
          type: array
          items:
            type: string
        _links:
          type: object
          properties:
            self:
              type: array
              items:
                type: string
            collection:
              type: array
              items:
                type: string
            about:
              type: array
              items:
                type: string
            wp:post_type:
              type: array
              items:
                type: string
            curies:
              type: array
              items:
                type: string
      description: Shape observed on a live anonymous GET of the TaxonomyTerm collection on 2026-09-12.
    TaxonomyTerm:
      type: object
      properties:
        id:
          type: integer
        count:
          type: integer
        description:
          type: string
        link:
          type: string
          format: uri
        name:
          type: string
        slug:
          type: string
        taxonomy:
          type: string
        parent:
          type: integer
        meta:
          type: array
          items:
            type: string
        acf:
          type: array
          items:
            type: string
        _links:
          type: object
          properties:
            self:
              type: array
              items:
                type: string
            collection:
              type: array
              items:
                type: string
            about:
              type: array
              items:
                type: string
            up:
              type: array
              items:
                type: string
            wp:post_type:
              type: array
              items:
                type: string
            curies:
              type: array
              items:
                type: string
      description: Shape observed on a live anonymous GET of the TaxonomyTerm collection on 2026-09-12.
x-refined-from:
- greenbrier-cos-press-room-api-openapi.yml
- greenbrier-cos-railcar-catalog-api-openapi.yml