Greenbrier Companies Catalog API

openapi: 3.2.0
info:
  title: Greenbrier Aftermarket Parts Store Catalog API
  version: wp/v2
  description: Public, unauthenticated read access to the Greenbrier aftermarket railcar parts catalog served by the WooCommerce Store API on www.gbrx.com.
  contact:
    name: The Greenbrier Companies
    url: https://www.gbrx.com/contact/
  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'
  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.'
servers:
- url: https://www.gbrx.com/wp-json
  description: Greenbrier WooCommerce Store API
tags:
- name: Catalog
  description: Product categories, tags, brands and attribute vocabularies.
paths:
  /wc/store/v1/products/categories:
    get:
      operationId: listStoreProductCategories
      summary: List product categories
      description: Retrieve the product category tree used to navigate the parts catalog.
      tags:
      - Catalog
      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: If true, empty terms will not be returned.
        schema:
          type: boolean
          default: true
      - name: include
        in: query
        description: Limit result set to specific ids.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: order
        in: query
        description: Sort ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort by term property.
        schema:
          type: string
          enum:
          - name
          - slug
          - 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 results to terms with a specific parent (hierarchical taxonomies only).
        schema:
          type: integer
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set. Defaults to no limit if left blank.
        schema:
          type: integer
          minimum: 0
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      responses:
        '200':
          description: A page of product categories.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/StoreProductCategory'
          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'
  /wc/store/v1/products/categories/{id}:
    get:
      operationId: getStoreProductCategory
      summary: Get a product category
      description: Retrieve one product category by ID.
      tags:
      - Catalog
      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 resource.
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StoreProductCategory'
        '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'
  /wc/store/v1/products/attributes:
    get:
      operationId: listStoreProductAttributes
      summary: List product attributes
      description: Retrieve the global product attribute vocabularies. Verified live at 33 attributes on 2026-09-12, including dimensions, material, nominal thickness, o-ring, PSI, steam connections, thickness and weight.
      tags:
      - Catalog
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - edit
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/StoreProductAttribute'
          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'
  /wc/store/v1/products/attributes/{attribute_id}/terms:
    get:
      operationId: listStoreProductAttributeTerms
      summary: List attribute terms
      description: Retrieve the terms defined for one global product attribute.
      tags:
      - Catalog
      parameters:
      - name: __experimental_visual
        in: query
        description: If true, include experimental visual swatch data for wc-visual attribute terms.
        schema:
          type: boolean
          default: false
      - name: attribute_id
        in: path
        description: Unique identifier for the attribute.
        required: true
        schema:
          type: integer
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - 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: If true, empty terms will not be returned.
        schema:
          type: boolean
          default: true
      - name: include
        in: query
        description: Limit result set to specific ids.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: order
        in: query
        description: Sort ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort by term property.
        schema:
          type: string
          enum:
          - name
          - slug
          - count
          - menu_order
          - name_num
          - id
          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 results to terms with a specific parent (hierarchical taxonomies only).
        schema:
          type: integer
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set. Defaults to no limit if left blank.
        schema:
          type: integer
          minimum: 0
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/StoreProductAttribute'
          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'
  /wc/store/v1/products/collection-data:
    get:
      operationId: getStoreCollectionData
      summary: Get collection aggregates
      description: Retrieve aggregate facet data for a product query — price range, attribute counts, rating counts, stock-status counts and taxonomy counts. This is the data behind the store's filter widgets.
      tags:
      - Catalog
      parameters:
      - name: after
        in: query
        description: Limit response to resources created after a given ISO8601 compliant date.
        schema:
          type: string
          format: date-time
      - name: attribute_relation
        in: query
        description: The logical relationship between attributes when filtering across multiple at once.
        schema:
          type: string
          enum:
          - in
          - and
          default: and
      - name: attributes
        in: query
        description: Limit result set to products with selected global attributes.
        schema:
          type: array
          items:
            type: object
          default: []
      - name: before
        in: query
        description: Limit response to resources created before a given ISO8601 compliant date.
        schema:
          type: string
          format: date-time
      - name: brand
        in: query
        description: Limit result set to products assigned a set of brand IDs or slugs, separated by commas.
        schema:
          type: string
      - name: brand_operator
        in: query
        description: Operator to compare product brand terms.
        schema:
          type: string
          enum:
          - in
          - not_in
          - and
          default: in
      - name: calculate_attribute_counts
        in: query
        description: If requested, calculates attribute term counts for products in the collection.
        schema:
          type: array
          items:
            type: object
          default: []
      - name: calculate_price_range
        in: query
        description: If true, calculates the minimum and maximum product prices for the collection.
        schema:
          type: boolean
          default: false
      - name: calculate_rating_counts
        in: query
        description: If true, calculates rating counts for products in the collection.
        schema:
          type: boolean
          default: false
      - name: calculate_stock_status_counts
        in: query
        description: If true, calculates stock counts for products in the collection.
        schema:
          type: boolean
          default: false
      - name: calculate_taxonomy_counts
        in: query
        description: If requested, calculates taxonomy term counts for products in the collection.
        schema:
          type: array
          items:
            type: string
          default: []
      - name: catalog_visibility
        in: query
        description: Determines if hidden or visible catalog products are shown.
        schema:
          type: string
          enum:
          - any
          - visible
          - catalog
          - search
          - hidden
      - name: category
        in: query
        description: Limit result set to products assigned a set of category IDs or slugs, separated by commas.
        schema:
          type: string
      - name: category_operator
        in: query
        description: Operator to compare product category terms.
        schema:
          type: string
          enum:
          - in
          - not_in
          - and
          default: in
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - edit
          default: view
      - name: date_column
        in: query
        description: When limiting response using after/before, which date column to compare against.
        schema:
          type: string
          enum:
          - date
          - date_gmt
          - modified
          - modified_gmt
          default: date
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: featured
        in: query
        description: Limit result set to featured products.
        schema:
          type: boolean
      - name: include
        in: query
        description: Limit result set to specific ids.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: max_price
        in: query
        description: Limit result set to products based on a maximum price, provided using the smallest unit of the currency.
        schema:
          type: string
      - name: min_price
        in: query
        description: Limit result set to products based on a minimum price, provided using the smallest unit of the currency.
        schema:
          type: string
      - name: offset
        in: query
        description: Offset the result set by a specific number of items.
        schema:
          type: integer
      - name: on_sale
        in: query
        description: Limit result set to products on sale.
        schema:
          type: boolean
      - name: order
        in: query
        description: Order sort attribute ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: desc
      - name: orderby
        in: query
        description: Sort collection by object attribute.
        schema:
          type: string
          enum:
          - date
          - modified
          - id
          - include
          - title
          - slug
          - price
          - popularity
          - rating
          - menu_order
          - comment_count
          default: date
      - 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 those of particular parent IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: parent_exclude
        in: query
        description: Limit result set to all items except those of a particular parent ID.
        schema:
          type: array
          items:
            type: integer
          default: []
      - 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: rating
        in: query
        description: Limit result set to products with a certain average rating.
        schema:
          type: array
          items:
            type: integer
            enum:
            - 1
            - 2
            - 3
            - 4
            - 5
          default: []
      - name: related
        in: query
        description: Limit result set to products related to a specific product ID.
        schema:
          type: integer
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: sku
        in: query
        description: Limit result set to products with specific SKU(s). Use commas to separate.
        schema:
          type: string
      - name: slug
        in: query
        description: Limit result set to products with specific slug(s). Use commas to separate.
        schema:
          type: string
      - name: stock_status
        in: query
        description: Limit result set to products with specified stock status.
        schema:
          type: array
          items:
            type: string
            enum:
            - instock
            - outofstock
            - onbackorder
          default: []
      - name: tag
        in: query
        description: Limit result set to products assigned a set of tag IDs or slugs, separated by commas.
        schema:
          type: string
      - name: tag_operator
        in: query
        description: Operator to compare product tags.
        schema:
          type: string
          enum:
          - in
          - not_in
          - and
          default: in
      - name: type
        in: query
        description: Limit result set to products assigned a specific type.
        schema:
          type: string
          enum:
          - simple
          - grouped
          - external
          - variable
          - variation
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StoreCollectionData'
        '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:
    StoreCollectionData:
      type: object
      properties:
        price_range:
          type: object
          properties:
            min_price:
              type: string
            max_price:
              type: string
            currency_code:
              type: string
            currency_symbol:
              type: string
            currency_minor_unit:
              type: integer
            currency_decimal_separator:
              type: string
            currency_thousand_separator:
              type: string
            currency_prefix:
              type: string
            currency_suffix:
              type: string
        attribute_counts:
          type: string
        rating_counts:
          type: string
        stock_status_counts:
          type: string
        taxonomy_counts:
          type: string
      description: Shape observed on a live anonymous GET of the StoreCollectionData collection on 2026-09-12.
    StoreProductAttribute:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        taxonomy:
          type: string
        type:
          type: string
        order:
          type: string
        has_archives:
          type: boolean
        count:
          type: integer
      description: Shape observed on a live anonymous GET of the StoreProductAttribute collection on 2026-09-12.
    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
    StoreProductCategory:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        slug:
          type: string
        description:
          type: string
        parent:
          type: integer
        count:
          type: integer
        image:
          type: string
        review_count:
          type: integer
        permalink:
          type: string
          format: uri
      description: Shape observed on a live anonymous GET of the StoreProductCategory collection on 2026-09-12.