Novu Messages API

openapi: 3.0.3
info:
  title: Novu API
  description: >-
    The Novu REST API drives open-source notification infrastructure that sends
    multi-channel messages - email, SMS, push, chat, and an in-app Inbox - from a
    single workflow trigger. A trigger event fans a notification out across the
    channels defined in a workflow. This document models the core resources -
    Events (Trigger), Subscribers, Topics, the in-app Inbox feed, Messages,
    Notifications (activity), Workflows, Integrations, Layouts, subscriber
    Preferences, Environments, and Translations. Novu is open source (MIT) and
    self-hostable, and also runs as Novu Cloud with US and EU regions. All
    requests authenticate with a secret API key sent as
    `Authorization: ApiKey <NOVU_SECRET_KEY>`. Endpoints are grounded in Novu's
    published API reference; request/response bodies are modeled at a
    representative level rather than field-complete.
  version: '1.0'
  contact:
    name: Novu
    url: https://novu.co
  license:
    name: MIT
    url: https://github.com/novuhq/novu/blob/next/LICENSE
servers:
  - url: https://api.novu.co/v1
    description: Novu Cloud - US (default)
  - url: https://eu.api.novu.co/v1
    description: Novu Cloud - EU
security:
  - apiKeyAuth: []
tags:
  - name: Events
    description: Trigger, bulk trigger, broadcast, and cancel workflow executions.
  - name: Subscribers
    description: Manage notification recipients and their credentials.
  - name: Topics
    description: Group subscribers into addressable audiences.
  - name: Inbox
    description: The in-app notification feed for a subscriber.
  - name: Messages
    description: Individual channel messages produced by workflow executions.
  - name: Notifications
    description: Activity feed of triggered workflow executions (events).
  - name: Workflows
    description: Multi-channel notification workflow definitions.
  - name: Integrations
    description: Channel provider configurations.
  - name: Layouts
    description: Reusable email layout wrappers.
  - name: Preferences
    description: Per-subscriber notification preferences.
  - name: Environments
    description: Environments and resource promotion.
  - name: Translations
    description: Localization of notification content.
paths:
  /events/trigger:
    post:
      operationId: triggerEvent
      tags: [Events]
      summary: Trigger event
      description: >-
        Triggers a notification workflow for one or more subscribers. A single
        event fans out across the channels defined in the named workflow.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TriggerEventRequest'
      responses:
        '201':
          description: The trigger was accepted.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TriggerEventResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /events/trigger/bulk:
    post:
      operationId: bulkTriggerEvents
      tags: [Events]
      summary: Bulk trigger event
      description: Triggers up to 100 events in a single request. Counts as 100 rate-limit tokens.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                events:
                  type: array
                  items:
                    $ref: '#/components/schemas/TriggerEventRequest'
      responses:
        '201':
          description: The bulk trigger was accepted.
        '401':
          $ref: '#/components/responses/Unauthorized'
  /events/broadcast:
    post:
      operationId: broadcastEvent
      tags: [Events]
      summary: Broadcast event to all
      description: Triggers a workflow for all subscribers in the current environment.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required: [name]
              properties:
                name:
                  type: string
                payload:
                  type: object
                  additionalProperties: true
      responses:
        '201':
          description: The broadcast was accepted.
        '401':
          $ref: '#/components/responses/Unauthorized'
  /events/trigger/{transactionId}:
    delete:
      operationId: cancelTriggeredEvent
      tags: [Events]
      summary: Cancel triggered event
      description: Cancels a triggered event (for example, one still in a delay or digest step) by its transactionId.
      parameters:
        - name: transactionId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Cancellation result.
        '401':
          $ref: '#/components/responses/Unauthorized'
  /subscribers:
    post:
      operationId: createSubscriber
      tags: [Subscribers]
      summary: Create a subscriber
      description: Creates a subscriber (notification recipient).
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SubscriberInput'
      responses:
        '201':
          description: The created subscriber.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Subscriber'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /subscribers/bulk:
    post:
      operationId: bulkCreateSubscribers
      tags: [Subscribers]
      summary: Bulk create subscribers
      description: Creates up to 500 subscribers in a single request.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                subscribers:
                  type: array
                  items:
                    $ref: '#/components/schemas/SubscriberInput'
      responses:
        '201':
          description: Bulk create result.
        '401':
          $ref: '#/components/responses/Unauthorized'
  /subscribers/{subscriberId}:
    parameters:
      - $ref: '#/components/parameters/SubscriberId'
    get:
      operationId: getSubscriber
      tags: [Subscribers]
      summary: Retrieve a subscriber
      responses:
        '200':
          description: The requested subscriber.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Subscriber'
        '404':
          $ref: '#/components/responses/NotFound'
    put:
      operationId: updateSubscriber
      tags: [Subscribers]
      summary: Update a subscriber
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SubscriberInput'
      responses:
        '200':
          description: The updated subscriber.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Subscriber'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteSubscriber
      tags: [Subscribers]
      summary: Delete a subscriber
      responses:
        '200':
          description: Deletion result.
        '404':
          $ref: '#/components/responses/NotFound'
  /subscribers/{subscriberId}/credentials/{providerId}:
    parameters:
      - $ref: '#/components/parameters/SubscriberId'
      - name: providerId
        in: path
        required: true
        schema:
          type: string
    put:
      operationId: updateSubscriberCredentials
      tags: [Subscribers]
      summary: Update provider credentials
      description: Updates channel credentials (for example a device token or chat webhook URL) for a subscriber and provider.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                credentials:
                  type: object
                  additionalProperties: true
      responses:
        '200':
          description: Updated subscriber.
        '404':
          $ref: '#/components/responses/NotFound'
  /subscribers/{subscriberId}/preferences:
    parameters:
      - $ref: '#/components/parameters/SubscriberId'
    get:
      operationId: getSubscriberPreferences
      tags: [Preferences]
      summary: Retrieve subscriber preferences
      responses:
        '200':
          description: The subscriber's preferences per workflow and channel.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PreferencesResponse'
        '404':
          $ref: '#/components/responses/NotFound'
    patch:
      operationId: updateSubscriberPreferences
      tags: [Preferences]
      summary: Update subscriber preferences
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PreferenceUpdate'
      responses:
        '200':
          description: Updated preferences.
        '404':
          $ref: '#/components/responses/NotFound'
  /subscribers/{subscriberId}/notifications/feed:
    parameters:
      - $ref: '#/components/parameters/SubscriberId'
    get:
      operationId: getInAppNotificationFeed
      tags: [Inbox]
      summary: Retrieve the in-app notification feed
      description: >-
        Returns the paginated in-app (Inbox) notification feed for a subscriber.
        This is the same feed the embeddable Inbox component renders and receives
        live updates for over the WebSocket described in the AsyncAPI document.
      parameters:
        - name: page
          in: query
          schema:
            type: integer
            default: 0
        - name: limit
          in: query
          schema:
            type: integer
            default: 10
        - name: read
          in: query
          schema:
            type: boolean
      responses:
        '200':
          description: A page of in-app notifications.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InAppFeedResponse'
        '404':
          $ref: '#/components/responses/NotFound'
  /subscribers/{subscriberId}/notifications/unseen:
    parameters:
      - $ref: '#/components/parameters/SubscriberId'
    get:
      operationId: getUnseenCount
      tags: [Inbox]
      summary: Retrieve unseen count
      description: Returns the number of unseen in-app notifications for the subscriber - the value pushed live as unseen_count_changed over the WebSocket.
      responses:
        '200':
          description: The unseen count.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      count:
                        type: integer
        '404':
          $ref: '#/components/responses/NotFound'
  /subscribers/{subscriberId}/messages/markAs:
    parameters:
      - $ref: '#/components/parameters/SubscriberId'
    post:
      operationId: markMessagesAs
      tags: [Inbox]
      summary: Mark in-app messages as seen/read
      description: Marks one or more in-app messages as seen or read for the subscriber.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required: [messageId, mark]
              properties:
                messageId:
                  oneOf:
                    - type: string
                    - type: array
                      items:
                        type: string
                mark:
                  type: object
                  properties:
                    seen:
                      type: boolean
                    read:
                      type: boolean
      responses:
        '200':
          description: Updated messages.
        '404':
          $ref: '#/components/responses/NotFound'
  /topics:
    post:
      operationId: createTopic
      tags: [Topics]
      summary: Create a topic
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TopicInput'
      responses:
        '201':
          description: The created topic.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Topic'
        '401':
          $ref: '#/components/responses/Unauthorized'
    get:
      operationId: listTopics
      tags: [Topics]
      summary: List all topics
      parameters:
        - name: page
          in: query
          schema:
            type: integer
        - name: pageSize
          in: query
          schema:
            type: integer
      responses:
        '200':
          description: A page of topics.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Topic'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /topics/{topicKey}:
    parameters:
      - $ref: '#/components/parameters/TopicKey'
    get:
      operationId: getTopic
      tags: [Topics]
      summary: Retrieve a topic
      responses:
        '200':
          description: The requested topic.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Topic'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteTopic
      tags: [Topics]
      summary: Delete a topic
      responses:
        '200':
          description: Deletion result.
        '404':
          $ref: '#/components/responses/NotFound'
  /topics/{topicKey}/subscribers:
    parameters:
      - $ref: '#/components/parameters/TopicKey'
    post:
      operationId: addSubscribersToTopic
      tags: [Topics]
      summary: Create topic subscriptions
      description: Adds subscribers to a topic.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                subscribers:
                  type: array
                  items:
                    type: string
      responses:
        '200':
          description: Subscription result.
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: removeSubscribersFromTopic
      tags: [Topics]
      summary: Delete topic subscriptions
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                subscribers:
                  type: array
                  items:
                    type: string
      responses:
        '200':
          description: Removal result.
        '404':
          $ref: '#/components/responses/NotFound'
  /messages:
    get:
      operationId: listMessages
      tags: [Messages]
      summary: List all messages
      description: Lists individual channel messages produced by workflow executions.
      parameters:
        - name: channel
          in: query
          schema:
            type: string
            enum: [in_app, email, sms, chat, push]
        - name: subscriberId
          in: query
          schema:
            type: string
        - name: transactionId
          in: query
          schema:
            type: string
        - name: page
          in: query
          schema:
            type: integer
        - name: limit
          in: query
          schema:
            type: integer
      responses:
        '200':
          description: A page of messages.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Message'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /messages/{messageId}:
    delete:
      operationId: deleteMessage
      tags: [Messages]
      summary: Delete a message
      parameters:
        - name: messageId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Deletion result.
        '404':
          $ref: '#/components/responses/NotFound'
  /notifications:
    get:
      operationId: listNotifications
      tags: [Notifications]
      summary: List all events
      description: Lists the activity feed of triggered workflow executions (events).
      parameters:
        - name: page
          in: query
          schema:
            type: integer
        - name: channels
          in: query
          schema:
            type: array
            items:
              type: string
        - name: transactionId
          in: query
          schema:
            type: string
      responses:
        '200':
          description: A page of notification/event records.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Notification'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /notifications/{notificationId}:
    get:
      operationId: getNotification
      tags: [Notifications]
      summary: Retrieve an event
      parameters:
        - name: notificationId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: The requested notification/event with per-step execution detail.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Notification'
        '404':
          $ref: '#/components/responses/NotFound'
  /workflows:
    post:
      operationId: createWorkflow
      tags: [Workflows]
      summary: Create a workflow
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WorkflowInput'
      responses:
        '201':
          description: The created workflow.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Workflow'
        '401':
          $ref: '#/components/responses/Unauthorized'
    get:
      operationId: listWorkflows
      tags: [Workflows]
      summary: List all workflows
      parameters:
        - name: page
          in: query
          schema:
            type: integer
        - name: limit
          in: query
          schema:
            type: integer
      responses:
        '200':
          description: A page of workflows.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Workflow'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /workflows/{workflowId}:
    parameters:
      - name: workflowId
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: getWorkflow
      tags: [Workflows]
      summary: Retrieve a workflow
      responses:
        '200':
          description: The requested workflow.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Workflow'
        '404':
          $ref: '#/components/responses/NotFound'
    put:
      operationId: updateWorkflow
      tags: [Workflows]
      summary: Update a workflow
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WorkflowInput'
      responses:
        '200':
          description: The updated workflow.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Workflow'
        '404':
          $ref: '#/components/responses/NotFound'
    patch:
      operationId: patchWorkflow
      tags: [Workflows]
      summary: Partially update a workflow
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: The updated workflow.
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteWorkflow
      tags: [Workflows]
      summary: Delete a workflow
      responses:
        '200':
          description: Deletion result.
        '404':
          $ref: '#/components/responses/NotFound'
  /workflows/{workflowId}/sync:
    post:
      operationId: syncWorkflow
      tags: [Workflows]
      summary: Sync a workflow
      description: Syncs a workflow to a target environment.
      parameters:
        - name: workflowId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                targetEnvironmentId:
                  type: string
      responses:
        '200':
          description: Sync result.
        '404':
          $ref: '#/components/responses/NotFound'
  /integrations:
    post:
      operationId: createIntegration
      tags: [Integrations]
      summary: Create an integration
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/IntegrationInput'
      responses:
        '201':
          description: The created integration.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Integration'
        '401':
          $ref: '#/components/responses/Unauthorized'
    get:
      operationId: listIntegrations
      tags: [Integrations]
      summary: List all integrations
      responses:
        '200':
          description: A list of integrations.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Integration'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /integrations/active:
    get:
      operationId: listActiveIntegrations
      tags: [Integrations]
      summary: List active integrations
      responses:
        '200':
          description: A list of active integrations.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Integration'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /integrations/{integrationId}:
    parameters:
      - name: integrationId
        in: path
        required: true
        schema:
          type: string
    put:
      operationId: updateIntegration
      tags: [Integrations]
      summary: Update an integration
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/IntegrationInput'
      responses:
        '200':
          description: The updated integration.
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteIntegration
      tags: [Integrations]
      summary: Delete an integration
      responses:
        '200':
          description: Deletion result.
        '404':
          $ref: '#/components/responses/NotFound'
  /integrations/{integrationId}/set-primary:
    post:
      operationId: setIntegrationPrimary
      tags: [Integrations]
      summary: Set integration as primary
      parameters:
        - name: integrationId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: The updated integration.
        '404':
          $ref: '#/components/responses/NotFound'
  /layouts:
    post:
      operationId: createLayout
      tags: [Layouts]
      summary: Create a layout
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LayoutInput'
      responses:
        '201':
          description: The created layout.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Layout'
        '401':
          $ref: '#/components/responses/Unauthorized'
    get:
      operationId: listLayouts
      tags: [Layouts]
      summary: List all layouts
      responses:
        '200':
          description: A page of layouts.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Layout'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /layouts/{layoutId}:
    parameters:
      - name: layoutId
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: getLayout
      tags: [Layouts]
      summary: Retrieve a layout
      responses:
        '200':
          description: The requested layout.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Layout'
        '404':
          $ref: '#/components/responses/NotFound'
    put:
      operationId: updateLayout
      tags: [Layouts]
      summary: Update a layout
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LayoutInput'
      responses:
        '200':
          description: The updated layout.
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteLayout
      tags: [Layouts]
      summary: Delete a layout
      responses:
        '200':
          description: Deletion result.
        '404':
          $ref: '#/components/responses/NotFound'
  /environments:
    post:
      operationId: createEnvironment
      tags: [Environments]
      summary: Create an environment
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required: [name]
              properties:
                name:
                  type: string
      responses:
        '201':
          description: The created environment.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Environment'
        '401':
          $ref: '#/components/responses/Unauthorized'
    get:
      operationId: listEnvironments
      tags: [Environments]
      summary: List all environments
      responses:
        '200':
          description: A list of environments.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Environment'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /environments/publish:
    post:
      operationId: publishEnvironment
      tags: [Environments]
      summary: Publish to target environment
      description: Publishes resources from the current environment to a target environment.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                targetEnvironmentId:
                  type: string
      responses:
        '200':
          description: Publish result.
        '401':
          $ref: '#/components/responses/Unauthorized'
  /translations:
    post:
      operationId: createTranslation
      tags: [Translations]
      summary: Create a translation
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TranslationInput'
      responses:
        '201':
          description: The created translation.
        '401':
          $ref: '#/components/responses/Unauthorized'
  /translations/{resourceType}/{resourceId}/{locale}:
    parameters:
      - name: resourceType
        in: path
        required: true
        schema:
          type: string
      - name: resourceId
        in: path
        required: true
        schema:
          type: string
      - name: locale
        in: path
        required: true
        schema:
          type: string
    get:
      operationId: getTranslation
      tags: [Translations]
      summary: Retrieve a translation
      responses:
        '200':
          description: The requested translation.
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteTranslation
      tags: [Translations]
      summary: Delete a translation
      responses:
        '200':
          description: Deletion result.
        '404':
          $ref: '#/components/responses/NotFound'
components:
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: Authorization
      description: >-
        Novu secret API key from the Dashboard API Keys page, sent as
        `Authorization: ApiKey <NOVU_SECRET_KEY>`.
  parameters:
    SubscriberId:
      name: subscriberId
      in: path
      required: true
      description: Your application's unique identifier for the subscriber.
      schema:
        type: string
    TopicKey:
      name: topicKey
      in: path
      required: true
      description: The user-defined unique key of the topic.
      schema:
        type: string
  responses:
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: The requested resource was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Error:
      type: object
      properties:
        statusCode:
          type: integer
        message:
          type: string
        error:
          type: string
    TriggerEventRequest:
      type: object
      required: [name, to]
      properties:
        name:
          type: string
          description: The workflow trigger identifier.
        to:
          description: Recipient(s) - a subscriberId, a subscriber object, an array, or a topic reference.
          oneOf:
            - type: string
            - type: object
              additionalProperties: true
            - type: array
              items:
                oneOf:
                  - type: string
                  - type: object
                    additionalProperties: true
        payload:
          type: object
          additionalProperties: true
          description: Variables interpolated into the workflow's channel steps.
        overrides:
          type: object
          additionalProperties: true
        transactionId:
          type: string
    TriggerEventResponse:
      type: object
      properties:
        data:
          type: object
          properties:
            acknowledged:
              type: boolean
            status:
              type: string
            transactionId:
              type: string
   

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# Full source: https://raw.githubusercontent.com/api-evangelist/novu-co/refs/heads/main/openapi/novu-co-openapi.yml