Clerk.io Logging API

openapi: 3.2.0
info:
  title: Clerk.io Logging API
  version: '2'
  description: 'Clerk.io e-commerce personalisation REST API. Ingest and manage catalog data (products, categories, pages, orders, order parcels, customers, accessories), run behaviour-ranked search and predictive search-as-you-type, request recommendation logics (popular, trending, new, complementary, substituting, visitor- and customer-personalised, category- and page-scoped), manage merchandising (custom search configurations, synonyms, redirects), drive audiences/campaigns/subscribers for email, log visitor behaviour events, and service GDPR privacy requests.


    All endpoints live under https://api.clerk.io/v2. Authentication uses a dual-key model: the public `key` identifies the store and is safe in browser-side calls; `private_key` is additionally required for write and sensitive operations and MUST only be sent over SSL.'
  contact:
    name: Clerk.io Documentation
    url: https://docs.clerk.io/
  x-provenance:
    method: searched
    harvested: '2026-08-13'
    source: https://docs.clerk.io/reference/ (ReadMe API Designer OpenAPI 3.1.0 fragments per reference page)
    original: openapi/_original/clerk-io-api-settings-openapi-original.yml
    note: Provider-published operation content is verbatim. API Evangelist added the document title/description, tags[] declarations and per-operation tag assignment; see overlays/clerk-io-api-overlay.yaml.
servers:
- url: https://api.clerk.io/v2
security:
- sec0: []
tags:
- name: Logging
paths:
  /log/cart/add:
    get:
      summary: log/cart/add
      description: Add products to a customers cart. A product is defined as a basket_product object  (see below)
      operationId: logcartadd
      parameters:
      - name: key
        in: query
        description: You store API key.
        required: true
        schema:
          type: string
      - name: products
        in: query
        description: A list of products in the form of **basket_products**
        required: true
        schema:
          type: array
      - name: visitor
        in: query
        description: Visitor id belonging to the basket
        schema:
          type: string
      - name: email
        in: query
        description: Email belonging to the basket
        schema:
          type: string
      - name: basket_id
        in: query
        description: Will be self assigned if one is not provided
        schema:
          type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: '{}'
              schema:
                type: object
                properties: {}
        '400':
          description: '400'
          content:
            application/json:
              examples:
                Result:
                  value: '{}'
              schema:
                type: object
                properties: {}
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: curl https://api.clerk.io/v2/log/cart/add?key=store_api_key&products=[{"id":"abc","qty":3}]&visitor=bob
        samples-languages:
        - curl
      tags:
      - Logging
  /log/cart/remove:
    get:
      summary: log/cart/remove
      description: remove products from a customers cart. A product is defined as a basket_product object (see below)
      operationId: logcartremove
      parameters:
      - name: key
        in: query
        description: You store API key.
        required: true
        schema:
          type: string
      - name: products
        in: query
        description: A list of products in the form of **basket_products**
        required: true
        schema:
          type: array
      - name: visitor
        in: query
        description: Visitor id belonging to the basket
        schema:
          type: string
      - name: email
        in: query
        description: Email belonging tot he basket
        schema:
          type: string
      - name: basket_id
        in: query
        description: Will be self assigned if one is not provided
        schema:
          type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: '{}'
              schema:
                type: object
                properties: {}
        '400':
          description: '400'
          content:
            application/json:
              examples:
                Result:
                  value: '{}'
              schema:
                type: object
                properties: {}
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: curl https://api.clerk.io/v2/log/cart/remove?key=store_api_key&products=[{"id":"abc","qty":3}]&visitor=bob
        samples-languages:
        - curl
      tags:
      - Logging
  /log/cart/update:
    get:
      summary: log/cart/update
      description: Sets the customers basket to the given products. A product is defined as a basket_product object (see below)
      operationId: logcartupdate
      parameters:
      - name: key
        in: query
        description: You store API key.
        required: true
        schema:
          type: string
      - name: products
        in: query
        description: A list of products in the form of **basket_products**
        required: true
        schema:
          type: array
      - name: visitor
        in: query
        description: Visitor id belonging to the basket
        schema:
          type: string
      - name: email
        in: query
        description: Email belonging tot he basket
        schema:
          type: string
      - name: basket_id
        in: query
        description: Will be self assigned if one is not provided
        schema:
          type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: '{}'
              schema:
                type: object
                properties: {}
        '400':
          description: '400'
          content:
            application/json:
              examples:
                Result:
                  value: '{}'
              schema:
                type: object
                properties: {}
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: curl https://api.clerk.io/v2/log/cart/update?key=store_api_key&products=[{"id":"abc","qty":3}]&visitor=bob
        samples-languages:
        - curl
      tags:
      - Logging
  /log/category:
    get:
      summary: log/category
      description: Log a category view from a customer
      operationId: logcategory
      parameters:
      - name: key
        in: query
        description: You store API key.
        required: true
        schema:
          type: string
      - name: category
        in: query
        description: ID of the product that the visitor viewed.
        required: true
        schema:
          type: string
      - name: visitor
        in: query
        description: Visitor ID for the given visitor. <br/> If `auto`, an anonymous ID is generated. <br/> See <a href="https://docs.clerk.io/docs/visitor-tracking" target="_blank">API documentation on Visitor Tracking</a> for details.
        required: true
        schema:
          type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n  \"status\": \"ok\"\n}"
                Error:
                  value: "{\n  \"status\": \"error\",\n  \"message\": \"A message explaining the error.\",\n  \"moreInfo\": \"http://help.clerk.io/error/{ERROR_ID}\",\n  \"type\": \"ErrorType\",\n  \"id\": \"{ERROR_ID}\"\n}"
              schema:
                oneOf:
                - type: object
                  properties:
                    status:
                      type: string
                      example: ok
                - title: Error
                  type: object
                  properties:
                    status:
                      type: string
                      example: error
                    message:
                      type: string
                      example: A message explaining the error.
                    moreInfo:
                      type: string
                      example: http://help.clerk.io/error/{ERROR_ID}
                    type:
                      type: string
                      example: ErrorType
                    id:
                      type: string
                      example: '{ERROR_ID}'
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: curl https://api.clerk.io/v2/log/category?key=store_api_key&category=123&visitor=unique_visitor_id
          name: GET
        - language: curl
          code: "curl -X POST \\\n     -H 'Content-Type: application/json' \\\n     -d '{\"key\": \"store_api_key\",\n          \"product\": 123,\n          \"visitor\": \"unique_visitor_id\"}' \\\n       https://api.clerk.io/v2/log/category"
          name: POST
        samples-languages:
        - curl
      tags:
      - Logging
  /log/click:
    get:
      summary: log/click
      description: Log a click on a product from Clerk.io.
      operationId: log-click
      parameters:
      - name: key
        in: query
        description: You store API key.
        required: true
        schema:
          type: string
      - name: product
        in: query
        description: ID pf the clicked product.
        required: true
        schema:
          type: string
      - name: visitor
        in: query
        description: '<small style="color: #eea236;">Required for tracking</small><br/>Visitor ID for the given visitor. <br/> If `auto`, an anonymous ID is generated. <br/> See <a href="https://docs.clerk.io/docs/visitor-tracking" target="_blank">API documentation on Visitor Tracking</a> for details.'
        required: true
        schema:
          type: string
      - name: api
        in: query
        description: The API endpoint used to generate the result for this click.
        schema:
          type: string
      - name: n
        in: query
        description: The clicked products position in the result (0-indexed).
        schema:
          type: integer
          format: int32
      - name: external
        in: query
        description: Is this a external click from outside the website such as a email or an ad.
        schema:
          type: boolean
          default: false
      - name: labels
        in: query
        description: The label(s) of the API endpoint used to generate this click
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n  \"status\": \"ok\"\n}"
                Error:
                  value: "{\n  \"status\": \"error\",\n  \"message\": \"A message explaining the error.\",\n  \"moreInfo\": \"http://help.clerk.io/error/{ERROR_ID}\",\n  \"type\": \"ErrorType\",\n  \"id\": \"{ERROR_ID}\"\n}"
              schema:
                oneOf:
                - type: object
                  properties:
                    status:
                      type: string
                      example: ok
                - title: Error
                  type: object
                  properties:
                    status:
                      type: string
                      example: error
                    message:
                      type: string
                      example: A message explaining the error.
                    moreInfo:
                      type: string
                      example: http://help.clerk.io/error/{ERROR_ID}
                    type:
                      type: string
                      example: ErrorType
                    id:
                      type: string
                      example: '{ERROR_ID}'
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: curl https://api.clerk.io/v2/log/click?key=store_api_key&product=123&visitor=unique_visitor_id
          name: GET
        - language: curl
          code: "curl -X POST \\\n     -H 'Content-Type: application/json' \\\n     -d '{\"key\": \"store_api_key\",\n          \"product\": 123,\n          \"visitor\": \"unique_visitor_id\"}' \\\n       https://api.clerk.io/v2/log/click"
          name: POST
        samples-languages:
        - curl
      tags:
      - Logging
  /log/email:
    get:
      summary: log/email
      description: Associate an email with a visitor.
      operationId: log-email
      parameters:
      - name: key
        in: query
        description: You store API key.
        required: true
        schema:
          type: string
      - name: email
        in: query
        description: The visitors email.
        required: true
        schema:
          type: string
      - name: visitor
        in: query
        description: Visitor ID for the given visitor. <br/> If `auto`, an anonymous ID is generated. <br/> See <a href="https://docs.clerk.io/docs/visitor-tracking" target="_blank">API documentation on Visitor Tracking</a> for details.
        required: true
        schema:
          type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n  \"status\": \"ok\"\n}"
                Error:
                  value: "{\n  \"status\": \"error\",\n  \"message\": \"A message explaining the error.\",\n  \"moreInfo\": \"http://help.clerk.io/error/{ERROR_ID}\",\n  \"type\": \"ErrorType\",\n  \"id\": \"{ERROR_ID}\"\n}"
              schema:
                oneOf:
                - type: object
                  properties:
                    status:
                      type: string
                      example: ok
                - title: Error
                  type: object
                  properties:
                    status:
                      type: string
                      example: error
                    message:
                      type: string
                      example: A message explaining the error.
                    moreInfo:
                      type: string
                      example: http://help.clerk.io/error/{ERROR_ID}
                    type:
                      type: string
                      example: ErrorType
                    id:
                      type: string
                      example: '{ERROR_ID}'
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: curl https://api.clerk.io/v2/log/email?key=store_api_key&email=john@doe.com&visitor=unique_visitor_id
          name: GET
        - language: curl
          code: "curl -X POST \\\n     -H 'Content-Type: application/json' \\\n     -d '{\"key\": \"store_api_key\",\n          \"product\": 123,\n          \"visitor\": \"unique_visitor_id\"}' \\\n       https://api.clerk.io/v2/log/click"
          name: POST
        samples-languages:
        - curl
      tags:
      - Logging
  /log/product:
    get:
      summary: log/product
      description: Log a product view from a customer
      operationId: logproduct
      parameters:
      - name: key
        in: query
        description: You store API key.
        required: true
        schema:
          type: string
      - name: product
        in: query
        description: ID of the product that the visitor viewed.
        required: true
        schema:
          type: string
      - name: visitor
        in: query
        description: Visitor ID for the given visitor. <br/> If `auto`, an anonymous ID is generated. <br/> See <a href="https://docs.clerk.io/docs/visitor-tracking" target="_blank">API documentation on Visitor Tracking</a> for details.
        required: true
        schema:
          type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n  \"status\": \"ok\"\n}"
                Error:
                  value: "{\n  \"status\": \"error\",\n  \"message\": \"A message explaining the error.\",\n  \"moreInfo\": \"http://help.clerk.io/error/{ERROR_ID}\",\n  \"type\": \"ErrorType\",\n  \"id\": \"{ERROR_ID}\"\n}"
              schema:
                oneOf:
                - type: object
                  properties:
                    status:
                      type: string
                      example: ok
                - title: Error
                  type: object
                  properties:
                    status:
                      type: string
                      example: error
                    message:
                      type: string
                      example: A message explaining the error.
                    moreInfo:
                      type: string
                      example: http://help.clerk.io/error/{ERROR_ID}
                    type:
                      type: string
                      example: ErrorType
                    id:
                      type: string
                      example: '{ERROR_ID}'
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: curl https://api.clerk.io/v2/log/product?key=store_api_key&product=123&visitor=unique_visitor_id
          name: GET
        - language: curl
          code: "curl -X POST \\\n     -H 'Content-Type: application/json' \\\n     -d '{\"key\": \"store_api_key\",\n          \"product\": 123,\n          \"visitor\": \"unique_visitor_id\"}' \\\n       https://api.clerk.io/v2/log/product"
          name: POST
        samples-languages:
        - curl
      tags:
      - Logging
  /log/returned:
    get:
      summary: log/returned
      description: Log a product that was returned, on an order.
      operationId: logreturned
      parameters:
      - name: key
        in: query
        description: Your store API key.
        required: true
        schema:
          type: string
      - name: private_key
        in: query
        description: Your store private API key.
        required: true
        schema:
          type: string
      - name: product
        in: query
        description: ID of the product.
        required: true
        schema:
          type: string
      - name: order
        in: query
        description: ID of the order / sale.
        required: true
        schema:
          type: string
      - name: quantity
        in: query
        description: The amount of returned products
        required: true
        schema:
          type: integer
          format: int32
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n  \"status\": \"ok\"\n}"
                Error:
                  value: "{\n  \"status\": \"error\",\n  \"message\": \"A message explaining the error.\",\n  \"moreInfo\": \"http://help.clerk.io/error/{ERROR_ID}\",\n  \"type\": \"ErrorType\",\n  \"id\": \"{ERROR_ID}\"\n}"
              schema:
                oneOf:
                - type: object
                  properties:
                    status:
                      type: string
                      example: ok
                - title: Error
                  type: object
                  properties:
                    status:
                      type: string
                      example: error
                    message:
                      type: string
                      example: A message explaining the error.
                    moreInfo:
                      type: string
                      example: http://help.clerk.io/error/{ERROR_ID}
                    type:
                      type: string
                      example: ErrorType
                    id:
                      type: string
                      example: '{ERROR_ID}'
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: '    curl https://api.clerk.io/v2/log/returned?key=store_api_key&private_key=store_private_api_key&product=123&order=456&quantity=2'
          name: GET
        - language: curl
          code: "curl -X POST \\\n     -H 'Content-Type: application/json' \\\n     -d '{\"key\": \"store_api_key\",\n          \"private_key\": \"store_private_api_key\",\n          \"product\": 123,\n          \"order\": 456,\n          \"quantity\":1}' \\\n     https://api.clerk.io/v2/log/returned"
          name: POST
        samples-languages:
        - curl
      tags:
      - Logging
  /log/sale:
    get:
      summary: log/sale
      description: Log a sale / order made by a user.
      operationId: log-sale
      parameters:
      - name: key
        in: query
        description: You store API key
        required: true
        schema:
          type: string
      - name: sale
        in: query
        description: ID of the order / sale.
        required: true
        schema:
          type: string
      - name: products
        in: query
        description: List of products in the order. Can be a simple list of product IDs or a list of objects with ID, price and quantity.
        required: true
        schema:
          items:
            properties:
              id:
                type: integer
                description: The ID of the product that was bought.
                format: int32
              quantity:
                type: integer
                description: The number of identical products that were bought. Minimum 1.
                format: int32
              price:
                type: number
                description: The unit price of the product that was bought. This will be multiplied by the quantity in Clerk.
                format: float
            type: object
          type: array
        style: deepObject
        explode: true
      - name: visitor
        in: query
        description: '<small style="color: #eea236;">Required for tracking</small><br/>Visitor ID for the given visitor. <br/> If `auto`, an anonymous ID is generated. <br/> See <a href="https://docs.clerk.io/docs/visitor-tracking" target="_blank">API documentation on Visitor Tracking</a> for details.'
        schema:
          type: string
      - name: customer
        in: query
        description: ID of the customer who made the order / sale.
        schema:
          type: string
      - name: email
        in: query
        description: The email of the customer who mae the order / sale.
        schema:
          type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n  \"status\": \"ok\"\n}"
                Error:
                  value: "{\n  \"status\": \"error\",\n  \"message\": \"A message explaining the error.\",\n  \"moreInfo\": \"http://help.clerk.io/error/{ERROR_ID}\",\n  \"type\": \"ErrorType\",\n  \"id\": \"{ERROR_ID}\"\n}"
              schema:
                oneOf:
                - type: object
                  properties:
                    status:
                      type: string
                      example: ok
                - title: Error
                  type: object
                  properties:
                    status:
                      type: string
                      example: error
                    message:
                      type: string
                      example: A message explaining the error.
                    moreInfo:
                      type: string
                      example: http://help.clerk.io/error/{ERROR_ID}
                    type:
                      type: string
                      example: ErrorType
                    id:
                      type: string
                      example: '{ERROR_ID}'
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: "curl -X POST \\\n     -H 'Content-Type: application/json' \\\n     -d '{\"key\": \"store_api_key\",\n          \"sale\": 567,\n          \"products\": [\n            {\n              \"id\": 1,\n              \"price\": 99.95,\n              \"quantity\": 2\n            }, \n            {\n              \"id\": 33,\n              \"price\": 14.00,\n              \"quantity\": 2\n            }\n          ],\n          \"customer\": 1234,\n          \"email\": \"theone@matrix.com\",\n          \"visitor\":  \"a1d0c6e83f027327d8461063f4ac58a6\"}' \\\n       https://api.clerk.io/v2/log/sale"
          name: POST
        - language: text
          code: curl https://api.clerk.io/v2/log/sale?key=store_api_key&sale=123456&email=john@doe.com&products=[123,456]
          name: GET
        samples-languages:
        - curl
        - text
      tags:
      - Logging
    post:
      summary: log/sale
      description: Log a sale / order made by a user.
      operationId: logsale-copy
      requestBody:
        content:
          application/json:
            schema:
              type: object
              required:
              - key
              - sale
              - products
              properties:
                key:
                  type: string
                  description: You store API key
                customer:
                  type: string
                  description: ID of the customer who made the order / sale.
                email:
                  type: string
                  description: The email of the customer who mae the order / sale.
                sale:
                  type: string
                  description: ID of the order / sale.
                products:
                  type: array
                  description: List of products in the order. Can be a simple list of product IDs or a list of objects with ID, price and quantity.
                  items:
                    properties:
                      id:
                        type: integer
                        description: The ID of the product that was bought.
                        format: int32
                      quantity:
                        type: integer
                        description: The number of identical products that were bought. Minimum 1.
                        format: int32
                      price:
                        type: number
                        description: The unit price of the product that was bought. This will be multiplied by the quantity in Clerk.
                        format: float
                    type: object
                visitor:
                  type: string
                  description: '<small style="color: #eea236;">Required for tracking</small><br/>Visitor ID for the given visitor. <br/> If `auto`, an anonymous ID is generated. <br/> See <a href="https://docs.clerk.io/docs/visitor-tracking" target="_blank">API documentation on Visitor Tracking</a> for details.'
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n  \"status\": \"ok\"\n}"
                Error:
                  value: "{\n  \"status\": \"error\",\n  \"message\": \"A message explaining the error.\",\n  \"moreInfo\": \"http://help.clerk.io/error/{ERROR_ID}\",\n  \"type\": \"ErrorType\",\n  \"id\": \"{ERROR_ID}\"\n}"
              schema:
                oneOf:
                - type: object
                  properties:
                    status:
                      type: string
                      example: ok
                - title: Error
                  type: object
                  properties:
                    status:
                      type: string
                      example: error
                    message:
                      type: string
                      example: A message explaining the error.
                    moreInfo:
                      type: string
                      example: http://help.clerk.io/error/{ERROR_ID}
                    type:
                      type: string
                      example: ErrorType
                    id:
                      type: string
                      example: '{ERROR_ID}'
      deprecated: false
      x-readme:
        code-samples:
        - language: curl
          code: "curl -X POST \\\n     -H 'Content-Type: application/json' \\\n     -d '{\"key\": \"store_api_key\",\n          \"sale\": 567,\n          \"products\": [\n            {\n              \"id\": 1,\n              \"price\": 99.95,\n              \"quantity\": 2\n            }, \n            {\n              \"id\": 33,\n              \"price\": 14.00,\n              \"quantity\": 2\n            }\n          ],\n          \"customer\": 1234,\n          \"email\": \"theone@matrix.com\",\n          \"visitor\":  \"a1d0c6e83f027327d8461063f4ac58a6\"}' \\\n       https://api.clerk.io/v2/log/sale"
          name: POST
        - language: text
          code: curl https://api.clerk.io/v2/log/sale?key=store_api_key&sale=123456&email=john@doe.com&products=[123,456]
          name: GET
        samples-languages:
        - curl
        - text
      tags:
      - Logging
components:
  securitySchemes:
    sec0:
      type: apiKey
      name: key
      in: query
      x-default: your_api_key