cisco-open/network-sketcher

git clone https://github.com/cisco-open/network-sketcher/
cd network-sketcher/network-sketcher_local_mcp && python -m pip install -r requirements_mcp.txt

Usage

• •Add to Cursor mcp.json: { "mcpServers": { "network-sketcher": { "command": "python", "args": ["/path/to/network-sketcher/network-sketcher_local_mcp/ns_mcp_server.py"] } } }
• •Or Claude Code: claude mcp add network-sketcher -- python "/path/to/.../ns_mcp_server.py"
• •Ask e.g. "create a small 5-site WAN design with HQ, two data centers, two branches... then build the default L1/L2/L3 diagrams and device table"
• •Platform import workflow: run a Cisco Extension converter, feed ns_commands.txt through run_commands, then finalize with build_default_outputs

Key features

• ✓Generates L1 physical, L2 VLAN/broadcast-domain, and L3 IP topology diagrams (SVG/PowerPoint) plus HTML device tables
• ✓AI Context file export so another LLM can review or extend the network design
• ✓Three editions: Local MCP (AI-native, stdio), Online (browser web service), Offline (desktop GUI + CLI)
• ✓Network Sketcher Cisco Extension converters import ACI, Catalyst Center, Meraki, Nexus Dashboard/NDFC, CML, Cyber Vision, SNA, NetBox exports, and config files (IOS/IOS-XE/NX-OS/IOS-XR/ASA)
• ✓Offline edition supports conversion from Visio, draw.io, NetBox, and CML data; communication flow management

Best for

AI-driven Cisco-style network design and topology diagram generation for network engineers using Cursor or Claude Code.

Caveats

• ⚠Local MCP: single-user, stdio transport only (no HTTP/SSE), requires Python 3.10+ and the full repo (network-sketcher_online folder must be present)
• ⚠End-to-end verified in Cursor (primary tested host); Claude Code support is design-validated only at this release
• ⚠Recommended LLM: Claude Opus 4.7 or later — weaker models may struggle with the multi-step tool workflows
• ⚠LLM clients cannot directly view binary PPTX/SVG output; diagram generation for large networks may take time
• ⚠Online/Offline editions are IPv4 only (no IPv6); Online edition is tested on Windows only and intended for internal networks