cisco-network-diagrams-mcp-server
Provides access to Cisco's official network diagram icon set, allowing agents to search, list, and retrieve icons as RGB PNG images with metadata for building topology diagrams.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@cisco-network-diagrams-mcp-server Find the router icon and get its image and metadata."
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
cisco-network-diagrams-mcp-server
MCP server exposing the 308 official icons from the Cisco Systems Corporate Iconography package — the free-to-use icon set Cisco itself distributes for diagrams and materials — so an LLM can look up the right icon and fetch it as an image while building a network topology diagram.
All icons are shipped pre-converted from Cisco's original CMYK JPEGs to RGB PNG. The CMYK originals render blank, discolored, or cropped in most web/collaborative tools (Miro, Figma, FigJam, browsers) — this fixes that at the source, and the PNGs are ~4x smaller too.
Tools
Tool | Description |
| List the 7 catalog categories with icon counts. |
| Keyword search across id/name/description (metadata only). |
| Paginated listing, optionally filtered by category or curated-only. |
| Fetch one icon's metadata and its RGB PNG image by id. |
29 of the 308 icons are curated: the equipment most common in
classroom/enterprise topologies (router, switch, firewall, server, access
point, cloud, etc.), annotated with glossary_name, function, and
when_to_use in addition to the base description every icon has.
Related MCP server: Cisco Catalog MCP Server
Installation
npm install -g cisco-network-diagrams-mcp-serverOr run without installing:
npx cisco-network-diagrams-mcp-serverUsage with an MCP client
Add to your client's MCP server config (e.g. Claude Desktop's
claude_desktop_config.json):
{
"mcpServers": {
"cisco-network-diagrams": {
"command": "npx",
"args": ["-y", "cisco-network-diagrams-mcp-server"]
}
}
}Placing icons on a canvas
The icons are not square — e.g. router is ~77×52 px. When placing the
image returned by cisco_get_icon onto a fixed-size node (Figma, FigJam,
Miro, etc.), use a FIT scale mode, never FILL — FILL stretches or
crops non-square icons.
License
The icons are Cisco's registered trademark artwork. Cisco authorizes free use in diagrams and materials, unaltered (no redrawing, recoloring the artwork, or distorting proportions). The CMYK→RGB conversion in this package is a technical compatibility fix (same color, different color space), not a visual alteration.
This package's own code is MIT-licensed; the icon artwork itself remains Cisco's property under Cisco's usage terms.
Available Tools
4 toolscisco_get_iconGet Cisco Icon ImageARead-onlyIdempotent
Fetch one Cisco network icon by id: its full metadata plus the actual image (PNG, RGB — pre-converted from Cisco's original CMYK JPEGs, which render blank or with wrong colors in most web/collaborative tools like Miro or Figma/FigJam).
Use this after cisco_search_icons or cisco_list_icons has told you the exact id you need. The image is returned as an embedded PNG you can place directly into a Miro board, Figma/FigJam file, or document.
Args:
id (string, required): exact icon id (case-sensitive), e.g. "router", "cisco_asa_5500"
Returns:
An image content block (PNG, RGB) — pass its dimensions to a 'FIT' scale mode when placing on a canvas; the icons are NOT square (e.g. "router" is ~77x52), so a 'FILL' scale mode will crop or distort it.
A text block with the icon's metadata (name, category, curated flag, description, and — for curated icons — glossary_name/function/when_to_use).
Error Handling:
Returns "Error: icon '' not found" if the id doesn't exist. Call cisco_search_icons first to find the correct id — don't retry with guessed variations.
Inputs: id (required).
cisco_list_categoriesList Cisco Icon CategoriesARead-onlyIdempotent
List every category in the Cisco Systems Corporate Iconography catalog, with a human-readable label and how many icons fall into each.
Use this first to understand how the 308-icon catalog is organized before calling cisco_list_icons or cisco_search_icons with a category filter.
Args: none.
Returns JSON: { "categories": [ { "id": "routing_l3", "label": "Roteamento (Camada 3)", "icon_count": 12 } ] }
Inputs: no named parameters.
cisco_list_iconsList Cisco Network IconsARead-onlyIdempotent
List icons from the 308-icon Cisco Systems Corporate Iconography catalog, optionally filtered by category, with pagination.
Defaults to curated_only=true, returning the 29 icons most relevant for teaching/enterprise network diagrams (router, switch, firewall, server, access point, cloud, etc.). Set curated_only=false to browse the full catalog (legacy/specific Cisco products, generic devices, people/buildings/phones icons).
Does NOT return image bytes — call cisco_get_icon with an id from the results to fetch the actual image.
Args:
curated_only (boolean, default true): restrict to the 29 curated icons
category (string, optional): filter by category id (see cisco_list_categories)
limit (number, default 50, max 100): page size
offset (number, default 0): pagination offset
Returns JSON: { "total": number, "count": number, "offset": number, "results": [ { "id": string, "name": string, "category": string, "curated": boolean, "description": string } ], "has_more": boolean, "next_offset": number | null }
Inputs: limit, offset, category, curated_only.
cisco_search_iconsSearch Cisco Network IconsARead-onlyIdempotent
Search the 308 official Cisco Systems Corporate Iconography icons by keyword. Matches against the icon's id, name, and description text.
This tool does NOT return image bytes — it returns lightweight metadata so you can identify the right icon id, then call cisco_get_icon with that id to fetch the actual image. Use this whenever the user asks "what icon represents X" or before assembling a diagram.
Args:
query (string, required): search term, e.g. "firewall", "roteador", "switch"
curated_only (boolean, default false): restrict to the 29 curated, pedagogically-annotated icons
category (string, optional): restrict to one category id (see cisco_list_categories)
limit (number, default 20, max 50): maximum results
Returns JSON: { "query": string, "total_matches": number, "count": number, "results": [ { "id": string, "name": string, "category": string, "curated": boolean, "description": string } ], "truncated": boolean }
Examples:
Use when: "que ícone eu uso pra representar um firewall?" -> query="firewall"
Use when: "preciso do ícone genérico de roteador wireless" -> query="wireless router"
Don't use when: you already know the exact id (use cisco_get_icon directly)
Error Handling:
Returns an empty "results" array (not an error) when nothing matches — suggest the user try an English equivalent or a generic fallback icon (e.g. "generic_gateway", "generic_processor").
Inputs: query (required), limit, category, curated_only.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
TDQS
Scored across 4 tools
Each tool has a clearly distinct purpose: listing categories, searching by keyword, listing with filters/pagination, and fetching a specific icon with its image. The search and list tools could overlap, but descriptions differentiate them (search by query vs. browse by category/pagination).
All tools follow the 'cisco_' + verb + noun pattern (cisco_list_categories, cisco_search_icons, cisco_list_icons, cisco_get_icon). The verbs are descriptive and consistent, and naming is uniformly snake_case.
Four tools is a well-scoped set for a read-only icon catalog server. Each tool earns its place: discovery via categories, search, filtered list, and retrieval with image bytes.
The surface covers the full workflow from catalog overview to specific icon retrieval. There are no obvious gaps—agents can discover, search, list, and fetch any icon. The domain is read-only, so no update/delete operations are expected.
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