> ## Documentation Index
> Fetch the complete documentation index at: https://docs.devtune.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Get visibility diff

> Compares the current visibility window with the previous same-length window.



## OpenAPI

````yaml /openapi.json get /projects/{projectId}/visibility/diff
openapi: 3.1.0
info:
  title: DevTune API
  version: 2.0.0
  description: >-
    API for programmatic access to your AI visibility data, webhook
    subscriptions, and automation workflows. Use this API to integrate DevTune
    data into CI/CD pipelines, BI tools, AI agents, and operational systems.
servers:
  - url: https://devtune.ai/api/v2
    description: Production
security:
  - bearerAuth: []
paths:
  /projects/{projectId}/visibility/diff:
    get:
      summary: Get visibility diff
      description: >-
        Compares the current visibility window with the previous same-length
        window.
      operationId: getVisibilityDiff
      parameters:
        - name: projectId
          in: path
          required: true
          schema:
            type: string
            format: uuid
        - name: windowDays
          in: query
          schema:
            type: integer
            default: 30
            enum:
              - 30
              - 90
          description: >-
            Fixed rolling window in days. Supported values are 30 and 90.
            Defaults to 30.
        - name: platform
          in: query
          schema:
            type: string
        - name: topicId
          in: query
          schema:
            type: string
            format: uuid
      responses:
        '200':
          description: Visibility diff
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      current:
                        type: object
                        properties:
                          dateFrom:
                            type: string
                            format: date
                          dateTo:
                            type: string
                            format: date
                          totals:
                            type: object
                            properties:
                              primaryCitations:
                                type: integer
                                minimum: 0
                              competitorCitations:
                                type: integer
                                minimum: 0
                              otherCitations:
                                type: integer
                                minimum: 0
                              total:
                                type: integer
                                minimum: 0
                              primaryShare:
                                type: number
                                minimum: 0
                                maximum: 100
                                description: >-
                                  Primary brand share of all citations in the
                                  period.
                            required:
                              - primaryCitations
                              - competitorCitations
                              - otherCitations
                              - total
                              - primaryShare
                        required:
                          - dateFrom
                          - dateTo
                          - totals
                      previous:
                        type: object
                        properties:
                          dateFrom:
                            type: string
                            format: date
                          dateTo:
                            type: string
                            format: date
                          totals:
                            type: object
                            properties:
                              primaryCitations:
                                type: integer
                                minimum: 0
                              competitorCitations:
                                type: integer
                                minimum: 0
                              otherCitations:
                                type: integer
                                minimum: 0
                              total:
                                type: integer
                                minimum: 0
                              primaryShare:
                                type: number
                                minimum: 0
                                maximum: 100
                                description: >-
                                  Primary brand share of all citations in the
                                  period.
                            required:
                              - primaryCitations
                              - competitorCitations
                              - otherCitations
                              - total
                              - primaryShare
                        required:
                          - dateFrom
                          - dateTo
                          - totals
                      delta:
                        type: object
                        properties:
                          primaryCitations:
                            type: integer
                          competitorCitations:
                            type: integer
                          otherCitations:
                            type: integer
                          primaryShare:
                            type: number
                            description: Percentage-point change in primary citation share.
                        required:
                          - primaryCitations
                          - competitorCitations
                          - otherCitations
                          - primaryShare
                      timeSeries:
                        type: array
                        items:
                          type: object
                          properties:
                            date:
                              type: string
                              format: date
                            primaryCitations:
                              type: integer
                              minimum: 0
                            competitorCitations:
                              type: integer
                              minimum: 0
                            otherCitations:
                              type: integer
                              minimum: 0
                          required:
                            - date
                            - primaryCitations
                            - competitorCitations
                            - otherCitations
                      window:
                        type: object
                        properties:
                          days:
                            type: integer
                          dateFrom:
                            type: string
                            format: date
                          dateTo:
                            type: string
                            format: date
                        required:
                          - days
                          - dateFrom
                          - dateTo
                    required:
                      - current
                      - previous
                      - delta
                      - timeSeries
                      - window
                  meta:
                    $ref: '#/components/schemas/Meta'
                required:
                  - data
                  - meta
        '400':
          $ref: '#/components/responses/BadRequestError'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '403':
          $ref: '#/components/responses/ForbiddenError'
        '429':
          $ref: '#/components/responses/RateLimitExceededError'
components:
  schemas:
    Meta:
      type: object
      properties:
        timestamp:
          type: string
          format: date-time
        projectId:
          type: string
          format: uuid
    Error:
      type: object
      properties:
        error:
          type: string
        message:
          type: string
        status:
          type: integer
      required:
        - error
        - message
        - status
  responses:
    BadRequestError:
      description: Bad request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    UnauthorizedError:
      description: Unauthorized
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    ForbiddenError:
      description: Forbidden
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    RateLimitExceededError:
      description: Rate limit exceeded
      headers:
        X-RateLimit-Limit:
          $ref: '#/components/headers/X-RateLimit-Limit'
        X-RateLimit-Remaining:
          $ref: '#/components/headers/X-RateLimit-Remaining'
        X-RateLimit-Reset:
          $ref: '#/components/headers/X-RateLimit-Reset'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  headers:
    X-RateLimit-Limit:
      description: Maximum requests per window
      schema:
        type: integer
    X-RateLimit-Remaining:
      description: Requests remaining in current window
      schema:
        type: integer
    X-RateLimit-Reset:
      description: Unix timestamp when the window resets
      schema:
        type: integer
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        API key with dtk_live_ prefix. Obtain it from API Keys in the account
        sidebar. New keys start with all supported scopes selected for the
        chosen project, and you can narrow them to specific read/write scopes as
        needed.

````