> ## Documentation Index > Fetch the complete documentation index at: https://developer.vetcove.com/llms.txt > Use this file to discover all available pages before exploring further. # List all product lines > Returns a list of all catalog product lines. The product lines are sorted by creation date, with the most recent product lines appearing first. When using modified filters, results are sorted in descending modification date instead. A **product line** is the top level of the catalog hierarchy, representing a brand or product family (e.g., "Heartgard Plus"). Each product line contains one or more products, and is associated with a manufacturer and category. ## OpenAPI ````yaml get /ext/v2/product-lines/ openapi: 3.1.0 info: description: '' title: NinjaAPI version: 2.0.0 servers: - url: https://connect.vetcove.com/ security: [] paths: /ext/v2/product-lines/: get: tags: - Catalog summary: List all product lines description: >- Returns a list of all catalog product lines. The product lines are sorted by creation date, with the most recent product lines appearing first. When using modified filters, results are sorted in descending modification date instead. A **product line** is the top level of the catalog hierarchy, representing a brand or product family (e.g., "Heartgard Plus"). Each product line contains one or more products, and is associated with a manufacturer and category. operationId: product_lines_list parameters: - description: When provided, filters to objects with these IDs. in: query name: ids required: false schema: anyOf: - items: type: integer type: array - type: 'null' description: When provided, filters to objects with these IDs. title: Ids - description: >- A cursor used for pagination. Fetches the page of results ending immediately before the object with the given ID. Cannot be used at the same time as `starting_after`. in: query name: ending_before required: false schema: anyOf: - type: integer - type: 'null' description: >- A cursor used for pagination. Fetches the page of results ending immediately before the object with the given ID. Cannot be used at the same time as `starting_after`. title: Ending Before - description: >- A cursor used for pagination. Fetches the page of results starting immediately after the given ID. Cannot be used at the same time as `ending_before`. in: query name: starting_after required: false schema: anyOf: - type: integer - type: 'null' description: >- A cursor used for pagination. Fetches the page of results starting immediately after the given ID. Cannot be used at the same time as `ending_before`. title: Starting After - description: The maximum number of items to return per page. in: query name: limit required: false schema: default: 10 description: The maximum number of items to return per page. maximum: 100 minimum: 1 title: Limit type: integer - description: >- A cursor token used for pagination. This token contains encoded information about the last seen record in order to continue pagination. Cannot be used with `starting_after` or `ending_before` parameters. in: query name: cursor required: false schema: anyOf: - type: string - type: 'null' description: >- A cursor token used for pagination. This token contains encoded information about the last seen record in order to continue pagination. Cannot be used with `starting_after` or `ending_before` parameters. title: Cursor - description: >- Filters to objects modified on or after this datetime (ISO8601 UTC, e.g. 2025-08-25T10:30:00Z). Cannot be used with `starting_after` or `ending_before` parameters. in: query name: modified__gte required: false schema: anyOf: - format: date-time type: string - type: 'null' description: >- Filters to objects modified on or after this datetime (ISO8601 UTC, e.g. 2025-08-25T10:30:00Z). Cannot be used with `starting_after` or `ending_before` parameters. title: Modified Gte - description: >- Filters to objects modified on or before this datetime (ISO8601 UTC, e.g. 2025-08-25T10:30:00Z). Cannot be used with `starting_after` or `ending_before` parameters. in: query name: modified__lte required: false schema: anyOf: - format: date-time type: string - type: 'null' description: >- Filters to objects modified on or before this datetime (ISO8601 UTC, e.g. 2025-08-25T10:30:00Z). Cannot be used with `starting_after` or `ending_before` parameters. title: Modified Lte responses: '200': content: application/json: schema: $ref: '#/components/schemas/ExternalProductLineSchemaList' description: OK security: - ExternalAPIAuth: [] components: schemas: ExternalProductLineSchemaList: properties: data: description: A single page of data contained within this list. items: $ref: '#/components/schemas/ExternalProductLineSchema' title: Data type: array has_more: default: false description: Whether there are more pages or data in this list. title: Has More type: boolean next_page: description: A URL linking to the next page of this list. title: Next Page type: string type: default: list description: Type of this object. Always `list`. title: Type type: string required: - data - next_page title: ExternalProductLineSchemaList type: object ExternalProductLineSchema: properties: alt_image_url: anyOf: - type: string - type: 'null' description: Alternative URL to the product line's image title: Alt Image Url brand_name: description: The brand name of the product line. title: Brand Name type: string created: description: The datetime this object was created. format: date-time title: Created type: string description: anyOf: - type: string - type: 'null' description: A description of the Product Line, if available title: Description grouping: anyOf: - type: string - type: 'null' description: >- Indicates whether the Product Line is a prescription item or OTC item title: Grouping id: description: Unique identifier for the product line. title: Id type: integer image_url: anyOf: - type: string - type: 'null' description: URL to the product line's image title: Image Url manufacturer_id: description: ID of the manufacturer that produces this product line. title: Manufacturer Id type: integer manufacturer_name: description: The manufacturer of the Product Line title: Manufacturer Name type: string modified: description: >- The datetime this object was last modified; changes to related entities will not update this field. format: date-time title: Modified type: string prescription_required: description: Indicates whether the Product Line requires a prescription title: Prescription Required type: boolean primary_category_name: anyOf: - type: string - type: 'null' description: The primary product category this product line belongs to. title: Primary Category Name refrigeration_required: description: Indicates whether the Product Line requires refrigeration title: Refrigeration Required type: boolean secondary_category_names: anyOf: - items: type: string type: array - type: 'null' description: Additional product categories this product line belongs to. title: Secondary Category Names required: - created - modified - id - manufacturer_id - brand_name - description - manufacturer_name - grouping - prescription_required - refrigeration_required title: ExternalProductLineSchema type: object securitySchemes: ExternalAPIAuth: scheme: bearer type: http ````