# Feature catalog — Comfy-Org/ComfyUI

> Canonical page: https://codevetter.com/unpack/comfyui/feature-catalog

# Feature catalog — Comfy-Org/ComfyUI

Scanned commit b33e2b55cae074eca5aec96283cceac19aa249ba (2026-09-22). Generated by codevetter codevetter 1.12.0 on 2026-09-22.

The user-facing surface is an HTTP+WebSocket API driving a node-graph execution engine, plus a large built-in node library. HTTP covers prompt submission, queue/history management, job status, image upload/view, model listing, object_info schema introspection, user data storage, and workflow templates. The node catalog spans core SD nodes in nodes.py, ~130 comfy_extras modules (audio, video, 3D, model merging, advanced samplers), and comfy_api_nodes that call paid third-party APIs. The optional ComfyUI Manager integration and the assets system (blake3-hashed media catalog in SQLite) are feature-flagged subsystems.
- POST /prompt accepts a workflow graph {node_id: {class_type, inputs}} plus optional client_id/extra_data/prompt_id/partial_execution_targets, runs validate_prompt, and heapq-pushes (number, prompt_id, prompt, extra_data, outputs_to_execute, sensitive) onto PromptQueue returning {prompt_id, number, node_errors}. — [server.py#L1075-1147](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L1075-L1147) [execution.py#L1297-1314](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/execution.py#L1297-L1314)
- Queue and history endpoints: GET /queue returns running+pending with sensitive fields stripped by _remove_sensitive_from_queue; POST /queue supports clear/delete; GET /history and /history/{prompt_id} read the in-memory history dict; POST /history clears or deletes entries. — [server.py#L69-71](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L69-L71) [server.py#L1048-1073](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L1048-L1073) [server.py#L1149-1217](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L1149-L1217)
- A jobs API exposes GET /api/jobs, GET /api/jobs/{job_id}, POST /api/jobs/{job_id}/cancel and POST /api/jobs/cancel backed by comfy_execution/jobs.py with JobStatus pending/in_progress/completed/failed/cancelled. — [server.py#L824-1048](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L824-L1048) [comfy_execution/jobs.py#L1-40](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/comfy_execution/jobs.py#L1-L40)
- POST /interrupt either targets a specific running prompt_id or globally interrupts via nodes.interrupt_processing -> comfy.model_management.interrupt_current_processing; POST /free sets unload_models/free_memory flags consumed by the worker loop. — [server.py#L1163-1204](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L1163-L1204) [nodes.py#L48-52](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/nodes.py#L48-L52) [main.py#L386-397](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/main.py#L386-L397)
- File endpoints: POST /upload/image and /upload/mask write into input/temp/output dirs with subfolder confinement checks and duplicate detection via hashing; GET /view serves files (including blake3: hash resolution to asset paths) and GET /view_metadata/{folder} exposes safetensors metadata. — [server.py#L397-499](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L397-L499) [server.py#L516-560](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L516-L560) [server.py#L666-689](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L666-L689)
- Introspection endpoints: GET /object_info and /object_info/{node_class} serialize each node class's INPUT_TYPES/RETURN_TYPES/CATEGORY for the frontend; GET /models and /models/{folder} list folder_paths categories; GET /embeddings lists embedding names; GET /system_stats and /features report device and capability info. — [server.py#L337-356](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L337-L356) [server.py#L689-823](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L689-L823)
- The /ws WebSocket negotiates per-client feature_flags as the first message, then streams JSON events (status, executing, executed, progress, execution_start/cached/success/error) and binary frames for preview images (PREVIEW_IMAGE, UNENCODED_PREVIEW_IMAGE, PREVIEW_IMAGE_WITH_METADATA from protocol.BinaryEventTypes). — [server.py#L269-327](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L269-L327) [server.py#L1293-1397](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L1293-L1397) [protocol.py](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/protocol.py)
- Core node set in nodes.py covers the SD1.x/SDXL workflow: CheckpointLoaderSimple, CLIPTextEncode, KSampler/KSamplerAdvanced, VAEEncode/VAEDecode(+Tiled), LoraLoader, ControlNetLoader/Apply, EmptyLatentImage, SaveImage/PreviewImage, LoadImage, and conditioning/latent/image transform nodes. — [nodes.py#L2068-2137](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/nodes.py#L2068-L2137) [nodes.py#L1572-1658](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/nodes.py#L1572-L1658)
- comfy_extras/ contributes ~130 node modules loaded by init_builtin_extra_nodes: upscale models, mask/compositing, model merging, SD3/Flux/Hunyuan/Wan/Qwen video+audio model support, 3D (load/save/mesh/gaussian splat), GLSL shaders, logic/loop/math utility nodes, and training nodes (nodes_train, nodes_dataset). — [nodes.py#L2394-2552](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/nodes.py#L2394-L2552)
- comfy_api_nodes/ contains API nodes that call remote paid services (OpenAI, Anthropic, Gemini, Grok, Kling, Luma, ByteDance, ElevenLabs, Stability, etc.) authenticated through hidden AUTH_TOKEN_COMFY_ORG/API_KEY_COMFY_ORG extra_data keys; --disable-api-nodes blocks them and adds a restrictive CSP middleware. — [comfy_api_nodes/nodes_openai.py#L1-30](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/comfy_api_nodes/nodes_openai.py#L1-L30) [execution.py#L161](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/execution.py#L161) [execution.py#L206-213](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/execution.py#L206-L213) [server.py#L200-243](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L200-L243)
- User/file management features: UserManager adds /users CRUD and /userdata file endpoints (GET/POST/DELETE/move) gated by --multi-user; get_public_user_directory blocks '__'-prefixed system user dirs from HTTP access. — [app/user_manager.py#L123-440](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/app/user_manager.py#L123-L440) [folder_paths.py#L154-216](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/folder_paths.py#L154-L216) [comfy/cli_args.py#L219](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/comfy/cli_args.py#L219)
- ModelFileManager adds experimental /experiment/models routes including a preview endpoint that extracts embedded preview images from model files; CustomNodeManager serves /workflow_templates and /i18n translation JSON built from loaded custom nodes. — [app/model_manager.py#L28-105](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/app/model_manager.py#L28-L105) [app/custom_node_manager.py#L92-141](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/app/custom_node_manager.py#L92-L141)
- The assets system (--enable-assets) registers uploads and generated outputs into a SQLite catalog with blake3 content hashes, runs background filesystem scans, and emits events through the server's send_sync sink. — [app/assets/manager.py#L22-101](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/app/assets/manager.py#L22-L101) [server.py#L443-460](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/server.py#L443-L460) [comfy/cli_args.py#L275](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/comfy/cli_args.py#L275)
- Latent previews during sampling are produced by latent_preview.py with methods none/auto/latent2rgb/taesd chosen by --preview-method/--preview-size, streamed to the client as binary preview frames via the hijacked progress hook. — [latent_preview.py](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/latent_preview.py) [comfy/cli_args.py#L122-137](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/comfy/cli_args.py#L122-L137) [main.py#L420-449](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/main.py#L420-L449)
- Internal (frontend-only, unstable) endpoints are mounted as the /internal sub-app: /internal/logs, /internal/logs/raw and log-subscription handled by TerminalService. — [api_server/routes/internal/internal_routes.py#L1-40](https://github.com/Comfy-Org/ComfyUI/blob/b33e2b55cae074eca5aec96283cceac19aa249ba/api_server/routes/internal/internal_routes.py#L1-L40)

Every claim links to its cited files at the pinned commit. Citations identify source evidence; they do not establish runtime correctness. Independent CodeVetter scan — not reviewed by upstream maintainers.

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