io.github.ottonic/cad-mcp-server
Ottogeo — CAD MCP Server
Is the Ottogeo MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
Measure STEP CAD files with your AI assistant: walls, clearances, draft, and revision diffs.
alive probed 2026-11-15 · unchanged since 2026-10-31
5tools
5.6ktokens in Claude Opus 5.5
2.8 %of Claude's 200k window
2.2×the median server
406 msto initialize
50 msto list tools
- Run it
- npx -y cad-mcp-server@0.10.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- cad-mcp-server 0.10.1
- Capabilities
- resources, tools
- Instructions
- 234 characters
- Of a 1M window
- 0.6 % of a 1M context window
- Count
- 5.6k tokens in Claude Opus 5.5, exact, measured 2026-10-31. With the Claude Code prefix mcp__…__ on each tool name: 5.6k. The o200k_base estimate is 3.2k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/ottonic/cad-mcp-server
- Website
- https://github.com/ottonic/cad-mcp-server#readme
- Registry
- active, updated 2026-10-31 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.74×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| measure | 2 397 | 1 379 | 43 % |
| find_entities | 1 369 | 788 | 25 % |
| describe_pmi | 980 | 564 | 18 % |
| diff | 471 | 271 | 8 % |
| inspect | 360 | 207 | 6 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- io.github.osfrekt/rekt · alive
- OSINT.SX io.github.osintsx/osintsx-mcp · alive
- io.github.ostapondo/plonk · alive
- io.github.ostraagent/mcp · timeout
- Ottorev — Review MCP Server io.github.ottonic/review-mcp-server · crashed on start
- Ottosim — Simulation MCP Server io.github.ottonic/simulation-mcp-server · crashed on start
- Ottoref — Standards MCP Server io.github.ottonic/standards-mcp-server · alive
- pseolint io.github.ouranos-labs/pseolint · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.