> ## 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.

# Attach a published URL to a completed action

> Uses a recorded page change or first discovery within 14 days of action completion. Multiple eligible events return selection_required without saving. Retry with the selected changeEventId. First discovery is an observation date, not proof of publication. Retain existing entries in publishedUrls. Existing measurement dates cannot be overwritten.



## OpenAPI

````yaml /openapi.json post /projects/{projectId}/outcomes/changes/attach
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}/outcomes/changes/attach:
    post:
      summary: Attach a published URL to a completed action
      description: >-
        Uses a recorded page change or first discovery within 14 days of action
        completion. Multiple eligible events return selection_required without
        saving. Retry with the selected changeEventId. First discovery is an
        observation date, not proof of publication. Retain existing entries in
        publishedUrls. Existing measurement dates cannot be overwritten.
      operationId: attachOutcomeUrl
      parameters:
        - name: projectId
          in: path
          required: true
          schema:
            type: string
            format: uuid
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              additionalProperties: false
              required:
                - actionId
                - url
                - publishedUrls
              properties:
                actionId:
                  type: string
                  format: uuid
                url:
                  type: string
                  format: uri
                  maxLength: 2048
                  pattern: ^[hH][tT][tT][pP][sS]?://
                publishedUrls:
                  type: array
                  minItems: 1
                  maxItems: 20
                  items:
                    type: string
                    format: uri
                    maxLength: 2048
                    pattern: ^[hH][tT][tT][pP][sS]?://
                changeEventId:
                  type: string
                  format: uuid
      responses:
        '200':
          description: URL saved or recorded dates requiring selection
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/OutcomeUrlAttachmentData'
                  meta:
                    $ref: '#/components/schemas/Meta'
                required:
                  - data
                  - meta
        '400':
          $ref: '#/components/responses/BadRequestError'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '403':
          $ref: '#/components/responses/ForbiddenError'
        '409':
          description: The recorded event or existing measurement cannot be changed
        '429':
          $ref: '#/components/responses/RateLimitExceededError'
components:
  schemas:
    OutcomeUrlAttachmentData:
      type: object
      required:
        - status
        - candidates
      properties:
        status:
          type: string
          enum:
            - saved
            - selection_required
        candidates:
          type: array
          items:
            type: object
            required:
              - id
              - changedAt
              - kind
            properties:
              id:
                type: string
                format: uuid
              changedAt:
                type: string
                format: date-time
              kind:
                type: string
                enum:
                  - first_discovered
                  - content_changed
        interventionId:
          type:
            - string
            - 'null'
          format: uuid
        measurementStart:
          type:
            - string
            - 'null'
          format: date-time
        measurementBasis:
          type:
            - string
            - 'null'
          enum:
            - first_discovered
            - content_changed
            - null
    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.

````