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

# Get Agent Messages

> Gets messages from a session with embedded artifacts.

This function loads all messages from a session and processes any references
to artifacts, loading them and converting them to base64 for direct use in the frontend.



## OpenAPI

````yaml /api-reference/openapi/EvoAI-Processor-Service/sessions.yaml get /api/v1/sessions/{session_id}/messages
openapi: 3.1.0
info:
  title: Evolution Foundation - AI Processor Service - Sessions
  description: AI processing, integrations and sessions
  version: 1.0.0
servers:
  - url: https://api.evoai.app
    description: Production server
  - url: http://localhost:3004
    description: Development server
    variables:
      port:
        default: '3004'
  - url: '{customUrl}'
    description: Custom server
    variables:
      customUrl:
        default: https://your-instance.com
        description: Enter your server URL
security: []
paths:
  /api/v1/sessions/{session_id}/messages:
    get:
      summary: Get Agent Messages
      description: >-
        Gets messages from a session with embedded artifacts.


        This function loads all messages from a session and processes any
        references

        to artifacts, loading them and converting them to base64 for direct use
        in the frontend.
      operationId: get_agent_messages_api_v1_sessions__session_id__messages_get
      parameters:
        - name: session_id
          in: path
          required: true
          schema:
            type: string
            title: Session Id
      responses:
        '200':
          description: Messages retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse_list_'
        '400':
          description: Bad Request (invalid data)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                success: false
                error:
                  code: BAD_REQUEST
                  message: Invalid request parameters
                meta:
                  timestamp: '2024-01-15T10:30:00Z'
                  path: /api/v1/sessions/{session_id}/messages
                  method: GET
        '401':
          description: Unauthorized (invalid or missing token)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                success: false
                error:
                  code: UNAUTHORIZED
                  message: Invalid or missing authentication token
                meta:
                  timestamp: '2024-01-15T10:30:00Z'
                  path: /api/v1/sessions/{session_id}/messages
                  method: GET
        '403':
          description: Forbidden (insufficient permissions)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                success: false
                error:
                  code: FORBIDDEN
                  message: Insufficient permissions to perform this action
                meta:
                  timestamp: '2024-01-15T10:30:00Z'
                  path: /api/v1/sessions/{session_id}/messages
                  method: GET
        '404':
          description: Not Found (resource not found)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                success: false
                error:
                  code: NOT_FOUND
                  message: Session not found
                meta:
                  timestamp: '2024-01-15T10:30:00Z'
                  path: /api/v1/sessions/{session_id}/messages
                  method: GET
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
        '500':
          description: Internal Server Error (server error)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                success: false
                error:
                  code: INTERNAL_SERVER_ERROR
                  message: An unexpected error occurred
                meta:
                  timestamp: '2024-01-15T10:30:00Z'
                  path: /api/v1/sessions/{session_id}/messages
                  method: GET
      security:
        - ApiAccessToken: []
components:
  schemas:
    SuccessResponse_list_:
      properties:
        success:
          type: boolean
          title: Success
          description: Success indicator
          default: true
        data:
          items: {}
          type: array
          title: Data
          description: Response payload
        meta:
          $ref: 12027acb-a8c7-4a3e-b09b-4b69960203bd
          description: Metadata
        message:
          anyOf:
            - type: string
            - type: 'null'
          title: Message
          description: Optional success message
      type: object
      required:
        - data
        - meta
      title: SuccessResponse[list]
    ErrorResponse:
      properties:
        success:
          type: boolean
          title: Success
          description: Success indicator
          default: false
        error: 51da5519-eda1-49e7-a0a6-b699da9b410e
        meta:
          $ref: 644ffca8-f3ef-4e5b-9148-ce42bc96ec8e
          description: Metadata
      type: object
      required:
        - error
        - meta
      title: ErrorResponse
      description: |-
        Standard error response schema matching error_response() return format.

        This schema matches the structure returned by error_response() function,
        which always uses ErrorInfo for the error field.
    HTTPValidationError:
      properties:
        detail:
          items: 453ce868-0da7-4326-8d12-6c4ec4b84885
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
  securitySchemes:
    ApiAccessToken:
      type: apiKey
      in: header
      name: api_access_token
      description: API Access Token (UUID) for authentication

````

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