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

# Get image generation history

> Returns all image generation records for a given session and tool call, ordered oldest first. Includes presigned URLs for all generated images and reference images. Requires read access to the session.



## OpenAPI

````yaml /openapi/openapi.json get /images/history
openapi: 3.1.0
info:
  title: IMP REST API
  version: 1.0.0
  description: >-
    REST endpoints of the IMP backend. GraphQL covers entity CRUD; REST covers
    agent runs, media, files, and system utilities. All requests require
    authentication unless the agent is public.
servers:
  - url: '{baseUrl}'
    variables:
      baseUrl:
        default: http://localhost:9001
        description: >-
          Base URL of your IMP backend. Self-hosted deployments typically run on
          port 9001.
security:
  - apiKey: []
  - bearer: []
tags:
  - name: Agents
    description: Endpoints for running, compacting, and querying agent instances.
  - name: Sessions
    description: Endpoints for managing files attached to agent sessions.
  - name: Media
    description: Transcription, speech synthesis, and image generation.
  - name: System
    description: Platform health and configuration utilities.
  - name: Budgets
    description: >-
      LiteLLM tag-budget management for users, roles, teams, projects, agents,
      and routines. Access requires `super_admin` or a role with
      `budget_management` write scope.
  - name: Skills
    description: >-
      Skills are versioned bundles of files (markdown, scripts, assets) mounted
      into the agent sandbox. These endpoints manage the skill registry and
      individual skill files.
  - name: Uploads
    description: >-
      Uppy-compatible S3 companion routes for single-part and multipart file
      uploads. Accept the standard API key. The `internal-key` header (set to
      `INTERNAL_SECRET`) is accepted only on `/s3/delete`, `/s3/download`,
      `/s3/list`, and `/s3/object` — it does **not** work on `/s3/sign` or the
      `/s3/multipart` routes.
  - name: Compliance
    description: >-
      GDPR / DSGVO operator endpoints for data-subject access (export) and
      erasure. Both require `super_admin`.
  - name: Artifacts
    description: >-
      Shareable artifact links — create, list, and revoke share links for files
      stored in S3.
paths:
  /images/history:
    get:
      tags:
        - Media
      summary: Get image generation history
      description: >-
        Returns all image generation records for a given session and tool call,
        ordered oldest first. Includes presigned URLs for all generated images
        and reference images. Requires read access to the session.
      operationId: getImageHistory
      parameters:
        - name: sessionId
          in: query
          required: true
          description: Agent session ID (UUID).
          schema:
            type: string
            format: uuid
        - name: toolCallId
          in: query
          required: true
          description: Tool call ID to filter generations by.
          schema:
            type: string
      responses:
        '200':
          description: Image generation history.
          content:
            application/json:
              schema:
                type: object
                properties:
                  history:
                    type: array
                    items:
                      type: object
                      properties:
                        generationId:
                          type: string
                        createdAt:
                          type: string
                          format: date-time
                        operation:
                          type: string
                          enum:
                            - generate
                            - edit
                        model:
                          type: string
                        prompt:
                          type: string
                        appliedStyleId:
                          type:
                            - string
                            - 'null'
                        appliedStyleMarkdown:
                          type:
                            - string
                            - 'null'
                        size:
                          type:
                            - string
                            - 'null'
                        quality:
                          type:
                            - string
                            - 'null'
                        'n':
                          type: integer
                        selected:
                          type: boolean
                        error:
                          type:
                            - string
                            - 'null'
                        maskImageKey:
                          type:
                            - string
                            - 'null'
                        images:
                          type: array
                          items:
                            type: object
                            properties:
                              key:
                                type: string
                              presignedUrl:
                                type: string
                              revisedPrompt:
                                type:
                                  - string
                                  - 'null'
                        references:
                          type: array
                          items:
                            type: object
                            properties:
                              key:
                                type: string
                              presignedUrl:
                                type: string
                required:
                  - history
        '400':
          description: Missing `sessionId` or `toolCallId` query parameters.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Authentication failed.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Caller lacks read access to the session.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Session not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '503':
          description: Image routes not enabled on this deployment.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    Error:
      type: object
      properties:
        detail:
          type: string
          description: Human-readable error message.
        message:
          type: string
          description: Human-readable error message (alternate key used on some endpoints).
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: x-api-key
      description: >-
        Organisation API key. Format: `sk_<secret>/<keyname>` — the secret
        portion, a literal slash, and the human-readable key name. The header
        `exulu-api-key` is accepted as an alias. A `Bearer ` prefix is tolerated
        and stripped. Keys with an agent scope are only valid for the scoped
        agent instance.
    bearer:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        NextAuth session JWT (HS256, signed with `NEXTAUTH_SECRET`). This is the
        token the IMP frontend uses automatically.

````