openapi: 3.1.0
info:
  title: Oracle Primavera P6 EPPM REST Activities Baselines API
  description: Oracle Primavera P6 EPPM REST API provides programmatic access to enterprise project portfolio management data including WBS structures, activity schedules, resource assignments, critical path analysis, and portfolio dashboards. Available for both cloud and on-premises deployments.
  version: 26.0.0
  contact:
    name: Oracle Support
    url: https://support.oracle.com
  license:
    name: Oracle Technology Network License
    url: https://www.oracle.com/legal/terms/
servers:
- url: https://{host}/p6ws/rest/v1
  description: P6 EPPM REST API
  variables:
    host:
      default: primavera.example.com
      description: P6 EPPM server hostname
security:
- basicAuth: []
- oauth2: []
tags:
- name: Baselines
  description: Project baseline operations
paths:
  /baselines:
    get:
      operationId: listBaselines
      summary: List baselines
      description: Returns project baselines including planned dates and costs.
      tags:
      - Baselines
      parameters:
      - name: Fields
        in: query
        schema:
          type: string
          example: ObjectId,Name,ProjectObjectId,BaselineType,LastUpdateDate
      - name: Filter
        in: query
        schema:
          type: string
      responses:
        '200':
          description: List of baselines
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Baseline'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    Error:
      type: object
      properties:
        ErrorCode:
          type: integer
        ErrorMessage:
          type: string
    Baseline:
      type: object
      description: A project baseline snapshot
      properties:
        ObjectId:
          type: integer
        Name:
          type: string
        ProjectObjectId:
          type: integer
        BaselineType:
          type: string
          enum:
          - Initial Planning Baseline
          - Mid-Project Baseline
          - Current Budget
          - Last Approved Budget
        LastUpdateDate:
          type: string
          format: date-time
  responses:
    Unauthorized:
      description: Authentication required
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: HTTP Basic Authentication with P6 username and password
    oauth2:
      type: oauth2
      description: Oracle Identity Cloud Service OAuth2
      flows:
        authorizationCode:
          authorizationUrl: https://identity.oraclecloud.com/oauth2/v1/authorize
          tokenUrl: https://identity.oraclecloud.com/oauth2/v1/token
          scopes:
            read: Read access to P6 data
            write: Write access to P6 data