Magic MCP vs Qcad MCP
A side-by-side look at the Magic MCP and Qcad MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Magic MCP for architecture & design work as a local process; choose Qcad MCP for architecture & design over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Magic MCP when
- You need dedicated capabilities in the Architecture & Design domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
TWENTY_FIRST_API_KEY, API_KEY_21ST.
Choose Qcad MCP when
- You need dedicated capabilities in the Architecture & Design domain.
- You prefer a remote HTTP/SSE transport.
- You have the keys it needs:
QCAD_MCP_DEPOT. - You want tools like
plan_depot, plan_info, plan_create.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Architecture & Design | Architecture & Design |
| Quality signal | 53/100 · Good | 56/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | API key required | Not declared |
| Pricing | Paid service | Not declared |
| Required env vars | TWENTY_FIRST_API_KEYAPI_KEY_21ST | QCAD_MCP_DEPOT |
| Verified owner | Community listing | Community listing |
| GitHub stars | 6,227 | 17 |
| Directory activity | 16 views 1 installs 0 upvotes | 4 views 0 installs 0 upvotes |
| Tools | Not listed | 36 |
| Full listing | View Magic MCP | View Qcad MCP |
Tools & capabilities
Magic MCP tools
No tool names declared yet. Check the project README from the listing page.
Qcad MCP tools 36
plan_depotList files in the persistent CAD depot with metadataplan_infoDXF metadata: layers, entity counts, bounding box, blocksplan_createCreate DXF from primitives (line, rect, circle, text, polyline)plan_to_svgDXF → SVG preview with layer filteringplan_extrudeDXF walls → 3D STL mesh (configurable height/thickness)plan_exportDXF → SVG/PNG/PDF (ezdxf or QCAD Pro)plan_analyseRoom detection, area calculation, door/window identificationplan_measureMeasure distances and lengths in a DXFplan_wall_dataExtract wall segments as BIM-ready JSON (QCAD Pro)plan_beam_analysis2D beam FEM analysis (numpy, no QCAD needed)plan_dimensionAdd aligned/linear/angular/radial dimensions (QCAD Pro)plan_textAdd text annotations (QCAD Pro)- +24 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.
Magic MCP
{
"mcpServers": {
"21st-dev-magic-mcp": {
"command": "npx",
"args": [
"-y",
"@21st-dev/cli@latest"
],
"env": {
"TWENTY_FIRST_API_KEY": "YOUR_TWENTY_FIRST_API_KEY_HERE",
"API_KEY_21ST": "YOUR_API_KEY_21ST_HERE"
}
}
}
}
Qcad MCP
{
"mcpServers": {
"qcad-mcp": {
"url": "http://localhost:11966/sse"
}
}
}
Frequently asked questions
Magic MCP is categorized under Architecture & Design and uses a local stdio subprocess. Qcad MCP belongs to Architecture & Design and uses a remote HTTP/SSE transport. Pick Magic MCP for architecture & design work and Qcad MCP for architecture & design.
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.
Magic MCP is listed as a paid service. Auth: api key required. Qcad 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 21st-dev-magic-mcp and qcad-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Magic MCP has a quality signal of 53/100 (Good) with 16 views, 1 installs and 6,227 GitHub stars. Qcad MCP has 56/100 (Good) with 4 views, 0 installs and 17 GitHub stars.