openapi: 3.1.0
info:
  title: Google Cloud Dialogflow CX Agents Sessions API
  description: The Dialogflow CX API enables building and managing conversational agents with flows, pages, intents, entity types, and session management for advanced multi-turn conversations.
  version: 3.0.0
  contact:
    name: Google Cloud
    url: https://cloud.google.com/dialogflow/cx/docs
servers:
- url: https://dialogflow.googleapis.com/v3
  description: Google Cloud Dialogflow CX Production
tags:
- name: Sessions
paths:
  /projects/{projectId}/locations/{location}/agents/{agentId}/sessions/{sessionId}:detectIntent:
    post:
      operationId: detectIntent
      summary: Google Cloud Dialogflow CX Detect intent
      description: Processes a natural language query and returns structured, actionable data.
      tags:
      - Sessions
      parameters:
      - name: projectId
        in: path
        required: true
        schema:
          type: string
      - name: location
        in: path
        required: true
        schema:
          type: string
      - name: agentId
        in: path
        required: true
        schema:
          type: string
      - name: sessionId
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                queryInput:
                  type: object
                  properties:
                    text:
                      type: object
                      properties:
                        text:
                          type: string
                    languageCode:
                      type: string
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                type: object
                properties:
                  responseId:
                    type: string
                  queryResult:
                    type: object
                    properties:
                      text:
                        type: string
                      intent:
                        $ref: '#/components/schemas/Intent'
                      intentDetectionConfidence:
                        type: number
                      responseMessages:
                        type: array
                        items:
                          type: object
                          properties:
                            text:
                              type: object
                              properties:
                                text:
                                  type: array
                                  items:
                                    type: string
components:
  schemas:
    Intent:
      type: object
      properties:
        name:
          type: string
          description: Resource name of the intent.
        displayName:
          type: string
          description: Human-readable name of the intent.
        trainingPhrases:
          type: array
          items:
            type: object
            properties:
              id:
                type: string
              parts:
                type: array
                items:
                  type: object
                  properties:
                    text:
                      type: string
                    parameterId:
                      type: string
              repeatCount:
                type: integer
        parameters:
          type: array
          items:
            type: object
            properties:
              id:
                type: string
              entityType:
                type: string
              isList:
                type: boolean
        priority:
          type: integer
          description: Priority of the intent.
        isFallback:
          type: boolean
          description: Whether this is a fallback intent.
        description:
          type: string
          description: Description of the intent.
  securitySchemes:
    oauth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://accounts.google.com/o/oauth2/auth
          tokenUrl: https://oauth2.googleapis.com/token
          scopes:
            https://www.googleapis.com/auth/dialogflow: Manage Dialogflow agents
            https://www.googleapis.com/auth/cloud-platform: Full access to Google Cloud