Leanplum Messaging API

openapi: 3.0.3
info:
  title: Leanplum API
  version: '1.0.6'
  description: >-
    The Leanplum (Leanplum by CleverTap) REST API. All requests are made to
    https://api.leanplum.com/api and are dispatched by an `action` parameter that
    names the method to run (for example action=track or action=sendMessage).
    Every request carries `appId`, a permission-scoped `clientKey`, and
    `apiVersion`; most requests also carry a `userId` and/or `deviceId`. Requests
    may be sent as GET (arguments as query parameters) or POST (arguments in a JSON
    or multipart body). Multiple actions can be batched with the `multi` method.


    Operating status note: Leanplum was acquired by CleverTap in 2022 and now
    operates as "Leanplum by CleverTap." The documented API surface below remains
    active during customer migration to CleverTap; CleverTap has wrapped its own
    methods behind these Leanplum API methods to ease that transition. Endpoint
    method names are grounded in the public Leanplum API reference; request/response
    schemas are modeled and should be verified against the live docs.
  contact:
    name: API Evangelist
    email: kin@apievangelist.com
  license:
    name: Proprietary
    url: https://www.leanplum.com
servers:
- url: https://api.leanplum.com
  description: Leanplum production API
tags:
- name: Events & Tracking
- name: User & Device Attributes
- name: Messaging
- name: A/B Tests
- name: Content & Variables
- name: Data Export
- name: Postbacks & Batch
paths:
  /api?action=start:
    post:
      tags:
      - Events & Tracking
      operationId: start
      summary: Start a session
      description: >-
        Starts a user session. Returns the set of variables presented to the
        user/device. Requires the production clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      - $ref: '#/components/parameters/deviceId'
      responses:
        '200':
          description: Session started; variables returned.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
        '403':
          $ref: '#/components/responses/Forbidden'
  /api?action=pauseSession:
    post:
      tags:
      - Events & Tracking
      operationId: pauseSession
      summary: Pause the current session
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      responses:
        '200':
          description: Session paused.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=resumeSession:
    post:
      tags:
      - Events & Tracking
      operationId: resumeSession
      summary: Resume a paused session
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      responses:
        '200':
          description: Session resumed.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=heartbeat:
    post:
      tags:
      - Events & Tracking
      operationId: heartbeat
      summary: Keep a session alive
      description: Sends a heartbeat to keep the current session active.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      responses:
        '200':
          description: Heartbeat recorded.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=stop:
    post:
      tags:
      - Events & Tracking
      operationId: stop
      summary: Stop the current session
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      responses:
        '200':
          description: Session stopped.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=track:
    post:
      tags:
      - Events & Tracking
      operationId: track
      summary: Track an event
      description: >-
        Tracks a user event (for example a purchase) with an optional monetary
        value and custom parameters. Requires the production clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TrackRequest'
      responses:
        '200':
          description: Event tracked.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
        '403':
          $ref: '#/components/responses/Forbidden'
  /api?action=advance:
    post:
      tags:
      - Events & Tracking
      operationId: advance
      summary: Advance to an application state
      description: Advances the user to a named application state. Requires the production clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                state:
                  type: string
                  description: Name of the application state.
                params:
                  type: object
                  additionalProperties: true
      responses:
        '200':
          description: State advanced.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=setUserAttributes:
    post:
      tags:
      - User & Device Attributes
      operationId: setUserAttributes
      summary: Set user attributes
      description: >-
        Sets attributes for the user given by userId and/or deviceId, used for
        segmentation and targeting. Requires the production clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      - $ref: '#/components/parameters/deviceId'
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SetUserAttributesRequest'
      responses:
        '200':
          description: Attributes set.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
        '403':
          $ref: '#/components/responses/Forbidden'
  /api?action=setDeviceAttributes:
    post:
      tags:
      - User & Device Attributes
      operationId: setDeviceAttributes
      summary: Set device attributes
      description: Sets device-level attributes (for example push tokens, locale). Requires the production clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/deviceId'
      requestBody:
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: Device attributes set.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=setTrafficSourceInfo:
    post:
      tags:
      - User & Device Attributes
      operationId: setTrafficSourceInfo
      summary: Set traffic source / attribution info
      description: Records acquisition/attribution traffic source information for a user.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                publisherName:
                  type: string
                publisherSubPublisher:
                  type: string
                publisherSubCampaign:
                  type: string
              additionalProperties: true
      responses:
        '200':
          description: Traffic source info set.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=deleteUser:
    post:
      tags:
      - User & Device Attributes
      operationId: deleteUser
      summary: Delete a user
      description: >-
        Deletes a user and their associated data. Requires the development
        clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      responses:
        '200':
          description: User deleted.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
        '403':
          $ref: '#/components/responses/Forbidden'
  /api?action=sendMessage:
    post:
      tags:
      - Messaging
      operationId: sendMessage
      summary: Send a message to a user
      description: >-
        Sends a push notification, news-feed message, in-app message, or other
        message type to a user. Requires the production clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SendMessageRequest'
      responses:
        '200':
          description: Message queued/sent.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
        '403':
          $ref: '#/components/responses/Forbidden'
  /api?action=getMessages:
    get:
      tags:
      - Messaging
      operationId: getMessages
      summary: List messages
      description: Returns the message campaign definitions in the app. Requires the content read-only clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      responses:
        '200':
          description: List of messages.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=getMessage:
    get:
      tags:
      - Messaging
      operationId: getMessage
      summary: Get a single message
      description: Returns metadata for one message campaign by id. Requires the content read-only clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - name: id
        in: query
        required: true
        schema:
          type: string
        description: Message id.
      responses:
        '200':
          description: Message metadata.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=getAbTests:
    get:
      tags:
      - A/B Tests
      operationId: getAbTests
      summary: List A/B tests
      description: Returns the A/B test experiments in the app. Requires the content read-only clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      responses:
        '200':
          description: List of A/B tests.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=getAbTest:
    get:
      tags:
      - A/B Tests
      operationId: getAbTest
      summary: Get a single A/B test
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - name: id
        in: query
        required: true
        schema:
          type: string
        description: A/B test id.
      responses:
        '200':
          description: A/B test details.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=getVariant:
    get:
      tags:
      - A/B Tests
      operationId: getVariant
      summary: Get the variant assigned to a user
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      responses:
        '200':
          description: Variant assignment.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=getVars:
    get:
      tags:
      - Content & Variables
      operationId: getVars
      summary: Get variables for a user
      description: >-
        Returns the variable values presented to the current user or device
        from the Leanplum content management system.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      - $ref: '#/components/parameters/deviceId'
      responses:
        '200':
          description: Variable values.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=setVars:
    post:
      tags:
      - Content & Variables
      operationId: setVars
      summary: Define content variables
      description: >-
        Sets the list of variables used in the Leanplum content management
        system. Requires the development clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                vars:
                  type: object
                  additionalProperties: true
              additionalProperties: true
      responses:
        '200':
          description: Variables set.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
        '403':
          $ref: '#/components/responses/Forbidden'
  /api?action=downloadFile:
    get:
      tags:
      - Content & Variables
      operationId: downloadFile
      summary: Download a managed file
      description: Downloads a file asset managed in Leanplum.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - name: filename
        in: query
        required: true
        schema:
          type: string
        description: Name/path of the file to download.
      responses:
        '200':
          description: File contents.
          content:
            application/octet-stream:
              schema:
                type: string
                format: binary
  /api?action=exportData:
    get:
      tags:
      - Data Export
      operationId: exportData
      summary: Export raw data
      description: >-
        Exports raw session and event data to downloadable JSON or CSV files
        over a date range. Runs asynchronously; poll getMultiResults for status.
        Requires the data export clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - name: startDate
        in: query
        schema:
          type: string
        description: Start date (YYYYMMDD).
      - name: endDate
        in: query
        schema:
          type: string
        description: End date (YYYYMMDD).
      - name: exportFormat
        in: query
        schema:
          type: string
          enum:
          - json
          - csv
      responses:
        '200':
          description: Export job accepted; job id returned.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
        '403':
          $ref: '#/components/responses/Forbidden'
  /api?action=exportUsers:
    get:
      tags:
      - Data Export
      operationId: exportUsers
      summary: Export user profiles
      description: Exports user profile data. Requires the data export clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      responses:
        '200':
          description: Export job accepted.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=exportUser:
    get:
      tags:
      - Data Export
      operationId: exportUser
      summary: Export a single user
      description: Exports the profile and history for one user. Requires the data export clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - $ref: '#/components/parameters/userId'
      responses:
        '200':
          description: User export.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=exportReport:
    get:
      tags:
      - Data Export
      operationId: exportReport
      summary: Export a report
      description: Exports messaging and A/B test reports. Requires the data export clientKey.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      responses:
        '200':
          description: Report export.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=getMultiResults:
    get:
      tags:
      - Data Export
      operationId: getMultiResults
      summary: Get status of an async job
      description: Returns the status of an asynchronous multi import or data export job.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      - name: jobId
        in: query
        required: true
        schema:
          type: string
        description: The job id returned by an export/import call.
      responses:
        '200':
          description: Job status.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=addPostback:
    post:
      tags:
      - Postbacks & Batch
      operationId: addPostback
      summary: Register a postback (webhook)
      description: Registers an HTTP postback callback fired on configured events.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                url:
                  type: string
                  description: The postback URL to call.
              additionalProperties: true
      responses:
        '200':
          description: Postback registered.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
  /api?action=multi:
    post:
      tags:
      - Postbacks & Batch
      operationId: multi
      summary: Batch multiple actions
      description: >-
        Batches multiple API actions into a single request. Limited to 50 users
        and/or 500 actions per call; calls exceeding the limit are ignored and
        return 403. Each unique user lookup is a billable API call.
      parameters:
      - $ref: '#/components/parameters/appId'
      - $ref: '#/components/parameters/clientKey'
      - $ref: '#/components/parameters/apiVersion'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MultiRequest'
      responses:
        '200':
          description: Batch processed; per-action results returned.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
        '403':
          description: Batch exceeded the 50 user / 500 action limit and was ignored.
components:
  parameters:
    appId:
      name: appId
      in: query
      required: true
      schema:
        type: string
      description: Your Leanplum application id.
    clientKey:
      name: clientKey
      in: query
      required: true
      schema:
        type: string
      description: >-
        The permission-scoped API key for the operation - production,
        development, data export, or content read-only. Send in the request body
        for POST requests to keep it secure.
    apiVersion:
      name: apiVersion
      in: query
      required: true
      schema:
        type: string
        default: '1.0.6'
      description: API version, for example 1.0.6.
    userId:
      name: userId
      in: query
      schema:
        type: string
      description: Identifier of the user the request applies to.
    deviceId:
      name: deviceId
      in: query
      schema:
        type: string
      description: Identifier of the device the request applies to.
  responses:
    Forbidden:
      description: >-
        Forbidden - the supplied clientKey lacks permission for this action, or a
        multi batch exceeded the 50 user / 500 action limit.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiResponse'
  schemas:
    ApiResponse:
      type: object
      description: Standard Leanplum response envelope with one response object per action.
      properties:
        response:
          type: array
          items:
            type: object
            properties:
              success:
                type: boolean
              error:
                type: object
                properties:
                  message:
                    type: string
            additionalProperties: true
    TrackRequest:
      type: object
      properties:
        event:
          type: string
          description: Name of the event to track.
        value:
          type: number
          description: Optional monetary or numeric value for the event.
        info:
          type: string
        params:
          type: object
          additionalProperties: true
          description: Custom event parameters.
      required:
      - event
    SetUserAttributesRequest:
      type: object
      properties:
        userAttributes:
          type: object
          additionalProperties: true
          description: Map of attribute names to values.
        newUserId:
          type: string
          description: Optional new user id to reassign this user to.
    SendMessageRequest:
      type: object
      properties:
        messageId:
          type: string
          description: Id of the message/campaign to send.
        createDisposition:
          type: string
          description: Controls how the message is created/queued.
        values:
          type: object
          additionalProperties: true
          description: Template values to interpolate into the message.
      required:
      - messageId
    MultiRequest:
      type: object
      properties:
        data:
          type: array
          description: Up to 500 action objects (max 50 unique users) to execute in one call.
          items:
            type: object
            properties:
              action:
                type: string
              userId:
                type: string
            additionalProperties: true
      required:
      - data