Cataas vs Comfyui MCP
A side-by-side look at the Cataas and Comfyui MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Cataas for multimedia process work as a local process; choose Comfyui MCP for multimedia process as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Cataas when
- You need dedicated capabilities in the Multimedia Process domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
random_cat, cat_by_tag, list_tags.
Choose Comfyui MCP when
- You need dedicated capabilities in the Multimedia Process domain.
- You prefer a local stdio subprocess transport.
- You want tools like
queue, get_system_stats, visualize_workflow.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Multimedia Process | Multimedia Process |
| Quality signal | 53/100 · Good | 64/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 855 |
| Directory activity | 1 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | 3 | 13 |
| Full listing | View Cataas | View Comfyui MCP |
Tools & capabilities
Cataas tools 3
random_catGet a random cat image. Returns image URL, cat ID, and associated tags.cat_by_tagGet a random cat image matching a specific tag (e.g., 'orange', 'cute', 'sleepy'). Returns image URL, cat ID, and tags.list_tagsList all available cat tags for filtering. Use tag names with cat_by_tag to find cats by appearance or behavior.
Comfyui MCP tools 13
queueOne action-parameterized tool for the execution queue: `list` (running + pending), `status` (one job by prompt ID), `get_workflow` (a pending job's full payload), `move`/`edit` (requeue a pending job front/back, patched or replaced, with a new prompt ID), `cancel` (interrupt the running job — escal…get_system_statsGet system info — GPU, VRAM, Python version, OSvisualize_workflowOne action-parameterized tool for rendering and converting a workflow you pass in: `render` (Mermaid flowchart, nodes grouped by category), `render_hierarchical` (the same graph sectioned — overview, one section in detail, a listing, or an AI-oriented summary), `mermaid` (a Mermaid diagram back to…create_workflowOne action-parameterized tool for authoring: `create` (from templates: `txt2img`, `img2img`, `upscale`, `inpaint`, `controlnet`, `ip_adapter`, `ace_step_15`, `stable_audio_3`), `modify` (operations: `set_input`, `add_node`, `remove_node`, `connect`, `insert_between`), `validate` (dry-run — missing…get_workflowOne action-parameterized tool for READING a saved workflow file: `list` (the user library, subfolders included), `get` (one workflow's JSON by filename), `analyze` (a structured summary instead of raw JSON), `query` (filter/traverse/aggregate a big graph without dumping it), `strip` (**de-virtualiz…save_workflowOne action-parameterized tool for WRITING to the library: `save` (store a workflow — overwrites a same-filename file), `lock` (record a provenance lock: SHA-256 per model, git commit per node pack), `verify_lock` (report drift against that lock)upload_imageCopy a local image into ComfyUI's `input/` directory for img2img, inpaint, or ControlNetdownload_modelFind and fetch model weights, and track the transfers. `action`: `download` (from a URL, into the correct ComfyUI subdirectory), `status`, `cancel`, `search` (HuggingFace), `search_civitai`, `search_creators`, `download_civitai`, `resolve_missinglist_local_modelsWhat is installed, and where ComfyUI looks. `action`: `list` (installed models by type: checkpoints, loras, vae, upscale_models, controlnet, embeddings, clip, unet, diffusion_models, text_encoders), `remove` (**deletes a model file**), `embeddings`, `list_paths`, `add_path`, `remove_path` (the last…clear_vramFree GPU VRAM by unloading cached models — calls ComfyUI's `/free` endpoint, reports before/after statssearch_custom_nodesSearch the ComfyUI Registry for node packs by keyword (`action: "search"`), or get one pack's full details (`action: "details"`)comfy_cliSearch actual loaded node classes through official `comfy nodes search` (action:"search_nodes")- +1 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Cataas
{
"mcpServers": {
"cataas": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-cataas"
]
}
}
}
Comfyui MCP
{
"mcpServers": {
"comfyui-mcp-2": {
"command": "npx",
"args": [
"-y",
"comfyui-mcp@latest"
]
}
}
}
Frequently asked questions
Cataas is categorized under Multimedia Process and uses a local stdio subprocess. Comfyui MCP belongs to Multimedia Process and uses a local stdio subprocess. Pick Cataas for multimedia process work and Comfyui MCP for multimedia process.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Cataas is listed as free. Auth: no auth required. Comfyui MCP has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add cataas and comfyui-mcp-2 as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Cataas has a quality signal of 53/100 (Good) with 1 views, 0 installs and 0 GitHub stars. Comfyui MCP has 64/100 (Good) with 2 views, 0 installs and 855 GitHub stars.