@aspicio/mcp

@aspicio/mcp

An MCP server that lets AI agents open, inspect, and render DXF/CAD drawings — built on the Aspicio viewer's headless pipeline. Local stdio server, no hosted dependency.

Tools

Tool	Returns	Use for
describe_dxf	Structured JSON: units, bounds/size, entity + segment counts, layers with the color actually drawn, per-type entity counts, skipped types	Structural questions — layers, counts, dimensions, units
render_dxf	A PNG image (width 64–4000, default 1200)	Visual questions — what the drawing looks like

Both accept source as an http(s) URL, a local file path, or inline DXF text.

Install

Claude Code / Claude Desktop:

claude mcp add aspicio -- npx -y @aspicio/mcp

Codex:

codex mcp add aspicio -- npx -y @aspicio/mcp

Any other MCP client: register the stdio command npx -y @aspicio/mcp.

Prefer a one-step install with bundled skills? The aspicio plugin wires this server plus usage skills into Claude Code and Codex.

Safety

URL sources are fetched with a private-host guard (loopback, RFC1918, IPv6 local ranges — revalidated on every redirect hop) and an 8 MB cap, so a model acting on untrusted input can't turn the server into a LAN/localhost probe.

Notes

• PNG rendering uses @resvg/resvg-js (native prebuilds; Node ≥ 18).
• Unsupported entity types are counted and reported in the summary, never fatal — see the core README for the full support matrix.