> ## Documentation Index > Fetch the complete documentation index at: https://docs.comfy.org/llms.txt > Use this file to discover all available pages before exploring further. # Get history for specific prompt > **Deprecated.** Use [`/api/jobs/{job_id}`](#tag/job/GET/api/jobs/{job_id}) instead — the `prompt_id` returned by `/api/prompt` is the same value as `job_id`. This endpoint is maintained for ComfyUI compatibility but will be removed in a future release; no removal date set. Retrieve detailed execution history for a specific prompt ID. Returns full history data including complete prompt information. ## OpenAPI ````yaml /openapi-cloud.yaml get /api/history_v2/{prompt_id} openapi: 3.0.3 info: title: Comfy Cloud API description: > **Experimental API:** This API is experimental and subject to change. Endpoints, request/response formats, and behavior may be modified without notice. API for Comfy Cloud - Run ComfyUI workflows on cloud infrastructure. This API allows you to interact with Comfy Cloud programmatically, including: - Submitting and managing workflows - Uploading and downloading files - Monitoring job status and progress ## Cloud vs OSS ComfyUI Compatibility Comfy Cloud implements the same API interfaces as OSS ComfyUI for maximum compatibility, but some fields are accepted for compatibility while being handled differently or ignored: | Field | Endpoints | Cloud Behavior | |-------|-----------|----------------| | `subfolder` | `/api/view`, `/api/upload/*` | **Ignored** - Cloud uses content-addressed storage (hash-based). Returned in responses for client-side organization. | | `type` (input/output/temp) | `/api/view`, `/api/upload/*` | Partially used - All files stored with tag-based organization rather than directory structure. | | `overwrite` | `/api/upload/*` | **Ignored** - Content-addressed storage means identical content always has the same hash. | | `number`, `front` | `/api/prompt` | **Ignored** - Cloud uses its own fair queue scheduling per user. | | `split`, `full_info` | `/api/userdata` | **Ignored** - Cloud always returns full file metadata. | These fields are retained in the API schema for drop-in compatibility with existing ComfyUI clients and workflows. version: 1.0.0 license: name: GNU General Public License v3.0 url: https://github.com/comfyanonymous/ComfyUI/blob/master/LICENSE servers: - url: https://cloud.comfy.org description: Comfy Cloud API security: - ApiKeyAuth: [] tags: - name: workflow description: | Submit workflows for execution and manage the execution queue. This is the primary way to run ComfyUI workflows on the cloud. - name: job description: | Monitor job status, view execution history, and manage running jobs. Jobs are created when you submit a workflow via POST /api/prompt. - name: asset description: | Upload, download, and manage persistent assets (images, models, outputs). Assets provide durable storage with tagging and metadata support. - name: file description: | Legacy file upload and download endpoints compatible with local ComfyUI. For new integrations, consider using the Assets API instead. - name: model description: | Browse available AI models. Models are pre-loaded on cloud infrastructure. - name: node description: | Get information about available ComfyUI nodes and their inputs/outputs. Useful for building dynamic workflow interfaces. - name: user description: | User account information and personal data storage. - name: system description: | Server status, health checks, and system information. paths: /api/history_v2/{prompt_id}: get: tags: - job summary: Get history for specific prompt description: > **Deprecated.** Use [`/api/jobs/{job_id}`](#tag/job/GET/api/jobs/{job_id}) instead — the `prompt_id` returned by `/api/prompt` is the same value as `job_id`. This endpoint is maintained for ComfyUI compatibility but will be removed in a future release; no removal date set. Retrieve detailed execution history for a specific prompt ID. Returns full history data including complete prompt information. operationId: getHistoryForPrompt parameters: - name: prompt_id in: path required: true description: The prompt ID to retrieve history for schema: type: string responses: '200': description: Success - History for prompt retrieved content: application/json: schema: $ref: '#/components/schemas/HistoryDetailResponse' '401': description: Unauthorized - Authentication required content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: Prompt not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' deprecated: true components: schemas: HistoryDetailResponse: type: object description: > Detailed execution history response for a specific prompt. Returns a dictionary with prompt_id as key and full history data as value. additionalProperties: $ref: '#/components/schemas/HistoryDetailEntry' ErrorResponse: type: object required: - code - message properties: code: type: string message: type: string HistoryDetailEntry: type: object description: History entry with full prompt data properties: prompt: type: object description: Full prompt execution data properties: priority: type: number format: double description: Execution priority prompt_id: type: string description: The prompt ID prompt: type: object description: The workflow nodes additionalProperties: true extra_data: type: object description: Additional execution data additionalProperties: true outputs_to_execute: type: array items: type: string description: Output nodes to execute outputs: type: object description: Output data from execution (generated images, files, etc.) additionalProperties: true status: type: object description: Execution status and timeline information additionalProperties: true meta: type: object description: Metadata about the execution and nodes additionalProperties: true securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-API-Key description: > API key authentication. Generate an API key from your account settings at https://platform.comfy.org/profile/api-keys. Pass the key in the X-API-Key header. ````