HubSpot CRM Timeline API

openapi: 3.0.1
info:
  title: HubSpot CRM Timeline
  description: Basepom for all HubSpot Projects
  version: 2026-09
  x-hubspot-product-tier-requirements:
    marketing: FREE
    sales: FREE
    service: FREE
    cms: FREE
    commerce: FREE
    crmHub: FREE
    dataHub: FREE
  x-hubspot-api-use-case: After setting up a new set of sign-up flows on your website, update contact
    timelines to indicate which flow they completed. In each event, you could also include a link to open
    an iframe that displays additional external data about the event.
  x-hubspot-introduction: 'Use the timeline events API to add custom event information to CRM record timelines.
    You''ll first need to create a public app, then an event template to display event data. '
servers:
- url: https://api.hubapi.com
tags:
- name: Advanced
- name: Batch
paths:
  /integrators/timeline/2026-09/events:
    post:
      tags:
      - Advanced
      summary: Send event data (single)
      description: Send a single instance of event data to a specified event type.
      operationId: post-/integrators/timeline/2026-09/events_create
      parameters: []
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AppEventOccurrence'
        required: true
      responses:
        '200':
          description: App Event Occurrence was accepted and persisted successfully. Mirrored to UnifiedEvents
            async.
          content: {}
        '201':
          description: successful operation
          headers:
            Location:
              description: URL of the newly created resource
              style: simple
              explode: false
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AppEventOccurrence'
        '400':
          description: The occurrence has a validation error that prevented us from accepting it for persistence.
            The response body will contain details about the validation error. Occurrence insert request
            rejected.
          content: {}
        '409':
          description: An occurrence for this event type and occurrence ID already exists. Occurrences
            are immutable. Occurrence insert request rejected.
          content: {}
        default:
          description: ''
          $ref: '#/components/responses/Error'
      security:
      - oauth2:
        - crm.objects.contacts.highly_sensitive.write.v2
      - oauth2:
        - crm.objects.contacts.write
      - oauth2:
        - crm.objects.contacts.sensitive.write.v2
      - oauth2:
        - crm.schemas.contacts.write
      - oauth2:
        - crm.objects.companies.write
      - oauth2:
        - crm.objects.companies.sensitive.write.v2
      - oauth2:
        - crm.objects.companies.highly_sensitive.write.v2
      - oauth2:
        - crm.schemas.companies.write
      - oauth2:
        - crm.schemas.deals.write
      - oauth2:
        - crm.objects.deals.write
      - oauth2:
        - crm.objects.deals.sensitive.write.v2
      - oauth2:
        - crm.objects.deals.highly_sensitive.write.v2
      - oauth2:
        - tickets
      - oauth2:
        - tickets.sensitive.v2
      - oauth2:
        - tickets.highly_sensitive.v2
      - oauth2:
        - crm.schemas.tickets.write
      - oauth2:
        - crm.objects.tickets.highly_sensitive.write
      - oauth2:
        - crm.objects.tickets.sensitive.write
      - oauth2:
        - timeline.write
      - oauth2:
        - timeline
  /integrators/timeline/2026-09/events/batch:
    post:
      tags:
      - Batch
      operationId: post-/integrators/timeline/2026-09/events/batch_/integrators/timeline/2026-03/events/batch
      parameters: []
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BatchInputAppEventOccurrence'
        required: true
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BatchResponseAppEventOccurrence'
        '400':
          description: One or more occurrences has a validation error that prevented us from accepting
            them for persistence. The response body will contain details about the validation error. Occurrence
            batch insert request rejected, none were accepted.
          content: {}
        '409':
          description: One or more occurrence in the batch already exist. Occurrences are immutable. Occurrence
            insert request rejected, none were accepted.
          content: {}
        default:
          description: ''
          $ref: '#/components/responses/Error'
      security:
      - oauth2:
        - crm.objects.contacts.highly_sensitive.write.v2
      - oauth2:
        - crm.objects.contacts.write
      - oauth2:
        - crm.objects.contacts.sensitive.write.v2
      - oauth2:
        - crm.schemas.contacts.write
      - oauth2:
        - crm.objects.companies.write
      - oauth2:
        - crm.objects.companies.sensitive.write.v2
      - oauth2:
        - crm.objects.companies.highly_sensitive.write.v2
      - oauth2:
        - crm.schemas.companies.write
      - oauth2:
        - crm.schemas.deals.write
      - oauth2:
        - crm.objects.deals.write
      - oauth2:
        - crm.objects.deals.sensitive.write.v2
      - oauth2:
        - crm.objects.deals.highly_sensitive.write.v2
      - oauth2:
        - tickets
      - oauth2:
        - tickets.sensitive.v2
      - oauth2:
        - tickets.highly_sensitive.v2
      - oauth2:
        - crm.schemas.tickets.write
      - oauth2:
        - crm.objects.tickets.highly_sensitive.write
      - oauth2:
        - crm.objects.tickets.sensitive.write
      - oauth2:
        - timeline.write
      - oauth2:
        - timeline
  /integrators/timeline/2026-09/types/projects:
    post:
      tags:
      - Advanced
      operationId: post-/integrators/timeline/2026-09/types/projects_/integrators/timeline/2026-03/types/projects
      parameters: []
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ExternalAppEventResolutionRequest'
        required: true
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AppEventResolutionResponse'
        '404':
          description: There is no App Event Type for the provided coordinates. Did you provide them correctly?
          content: {}
        default:
          description: ''
          $ref: '#/components/responses/Error'
      security:
      - oauth2:
        - developers-read
components:
  schemas:
    AppEventOccurrence:
      required:
      - eventTypeName
      - id
      - properties
      type: object
      properties:
        domain:
          type: string
        email:
          type: string
        eventTypeName:
          type: string
        extraData:
          type: object
          properties: {}
        id:
          type: string
        objectId:
          type: string
        objectTypeFullyQualifiedName:
          type: string
        properties:
          type: object
          additionalProperties:
            type: string
        timelineIFrame:
          $ref: '#/components/schemas/TimelineEventIFrame'
        timestamp:
          type: string
          format: date-time
        utk:
          type: string
    AppEventResolutionResponse:
      required:
      - developerQualifiedSymbol
      - fullyQualifiedName
      type: object
      properties:
        developerQualifiedSymbol:
          $ref: '#/components/schemas/DeveloperQualifiedSymbol'
        fullyQualifiedName:
          type: string
    BatchInputAppEventOccurrence:
      required:
      - inputs
      type: object
      properties:
        inputs:
          type: array
          items:
            $ref: '#/components/schemas/AppEventOccurrence'
    BatchResponseAppEventOccurrence:
      required:
      - completedAt
      - results
      - startedAt
      - status
      type: object
      properties:
        completedAt:
          type: string
          format: date-time
        errors:
          type: array
          items:
            $ref: '#/components/schemas/StandardError'
        links:
          type: object
          additionalProperties:
            type: string
        numErrors:
          type: integer
          format: int32
        requestedAt:
          type: string
          format: date-time
        results:
          type: array
          items:
            $ref: '#/components/schemas/AppEventOccurrence'
        startedAt:
          type: string
          format: date-time
        status:
          type: string
          enum:
          - CANCELED
          - COMPLETE
          - PENDING
          - PROCESSING
    DeveloperQualifiedSymbol:
      required:
      - developerSymbol
      - projectName
      type: object
      properties:
        developerSymbol:
          type: string
        projectName:
          type: string
    Error:
      required:
      - category
      - correlationId
      - message
      type: object
      properties:
        category:
          type: string
          description: The error category
        context:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
          description: Context about the error condition
          example: '{invalidPropertyName=[propertyValue], missingScopes=[scope1, scope2]}'
        correlationId:
          type: string
          description: A unique identifier for the request. Include this value with any error reports
            or support tickets
          format: uuid
          example: aeb5f871-7f07-4993-9211-075dc63e7cbf
        errors:
          type: array
          description: further information about the error
          items:
            $ref: '#/components/schemas/ErrorDetail'
        links:
          type: object
          additionalProperties:
            type: string
          description: A map of link names to associated URIs containing documentation about the error
            or recommended remediation steps
        message:
          type: string
          description: A human readable message describing the error along with remediation steps where
            appropriate
          example: An error occurred
        subCategory:
          type: string
          description: A specific category that contains more specific detail about the error
      description: Represents an error response returned by the API when an operation fails. This component
        is used in various endpoints to provide detailed information about the error encountered.
      example:
        message: Invalid input (details will vary based on the error)
        correlationId: aeb5f871-7f07-4993-9211-075dc63e7cbf
        category: VALIDATION_ERROR
        links:
          knowledge-base: https://www.hubspot.com/products/service/knowledge-base
    ErrorDetail:
      required:
      - message
      type: object
      properties:
        code:
          type: string
          description: The status code associated with the error detail
        context:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
          description: Context about the error condition
          example: '{missingScopes=[scope1, scope2]}'
        in:
          type: string
          description: The name of the field or parameter in which the error was found.
        message:
          type: string
          description: A human readable message describing the error along with remediation steps where
            appropriate
        subCategory:
          type: string
          description: A specific category that contains more specific detail about the error
      description: Represents detailed information about an error that occurred in the API. This component
        is used to provide additional context and specifics about errors, typically as part of an error
        response.
    ExternalAppEventResolutionRequest:
      required:
      - developerSymbol
      - projectName
      type: object
      properties:
        developerSymbol:
          type: string
        projectName:
          type: string
    StandardError:
      required:
      - category
      - context
      - errors
      - links
      - message
      - status
      type: object
      properties:
        category:
          type: string
          description: The category of the error.
        context:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
          description: The context of the error, potentially including occurrence information.
        errors:
          type: array
          description: The detailed error objects.
          items:
            $ref: '#/components/schemas/ErrorDetail'
        id:
          type: string
          description: The error ID, if any.
        links:
          type: object
          additionalProperties:
            type: string
          description: Links to any helpful documentation.
        message:
          type: string
          description: The error message, if any.
        status:
          type: string
          description: The resulting status of the batch operation.
        subCategory:
          type: object
          properties: {}
          description: Sub category of the error, if any.
      description: Ye olde error
    TimelineEventIFrame:
      required:
      - headerLabel
      - height
      - linkLabel
      - url
      - width
      type: object
      properties:
        headerLabel:
          type: string
          description: The label of the modal window that displays the iframe contents.
        height:
          type: integer
          description: The height of the modal window in pixels.
          format: int32
        linkLabel:
          type: string
          description: The text displaying the link that will display the iframe.
        url:
          type: string
          description: The URI of the iframe contents.
        width:
          type: integer
          description: The width of the modal window in pixels.
          format: int32
  responses:
    Error:
      description: An error occurred.
      content:
        '*/*':
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    developer_hapikey:
      type: apiKey
      name: hapikey
      in: query
    oauth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://app.hubspot.com/oauth/authorize
          tokenUrl: https://api.hubapi.com/oauth/v1/token
          scopes:
            crm.objects.companies.highly_sensitive.write.v2: ''
            crm.objects.companies.sensitive.write.v2: ''
            crm.objects.companies.write: ''
            crm.objects.contacts.highly_sensitive.write.v2: ''
            crm.objects.contacts.sensitive.write.v2: ''
            crm.objects.contacts.write: ''
            crm.objects.deals.highly_sensitive.write.v2: ''
            crm.objects.deals.sensitive.write.v2: ''
            crm.objects.deals.write: ''
            crm.objects.tickets.highly_sensitive.write: ''
            crm.objects.tickets.sensitive.write: ''
            crm.schemas.companies.write: ''
            crm.schemas.contacts.write: ''
            crm.schemas.deals.write: ''
            crm.schemas.tickets.write: ''
            developers-read: ''
            tickets: ''
            tickets.highly_sensitive.v2: ''
            tickets.sensitive.v2: ''
            timeline: ''
            timeline.write: ''
    private_apps:
      type: apiKey
      name: private-app
      in: header
    private_apps_legacy:
      type: apiKey
      name: private-app-legacy
      in: header
x-hubspot-available-client-libraries:
- Node
- Python
- Ruby
- PHP
x-hubspot-product-tier-requirements:
  marketing: FREE
  sales: FREE
  service: FREE
  cms: FREE
  commerce: FREE
  crmHub: FREE
  dataHub: FREE