io.github.mrfentmen/matrix-mcp
matrix-mcp
Is the io.github.mrfentmen/matrix-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-09.
Multiply, invert and find the determinant of matrices with exact rational arithmetic - fully local.
alive probed 2026-11-14 · unchanged since 2026-11-09
- Run it
- npx -y @mrfentmen/matrix-mcp@1.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- matrix-mcp 1.0.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 556 tokens in Claude Opus 5.5, exact, measured 2026-11-09. With the Claude Code prefix mcp__…__ on each tool name: 592. The o200k_base estimate is 288. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/mrfentmen/awesome-servers
- Registry
- active, updated 2026-11-08 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.93×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| matrix_multiply | 226 | 117 | 41 % |
| matrix_determinant | 166 | 86 | 30 % |
| matrix_inverse | 164 | 85 | 30 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- io.github.mrfentmen/math-tools-mcp · alive
- io.github.mrfentmen/mathematical-programming-system-mcp · alive
- io.github.mrfentmen/mathjs-mcp · alive
- io.github.mrfentmen/matlab-mcp · alive
- io.github.mrfentmen/maven-central-mcp · alive
- io.github.mrfentmen/maven-info-mcp · alive
- io.github.mrfentmen/maxscript-mcp · alive
- io.github.mrfentmen/maze-mcp · alive
Servers that mention matrix.
- app.vercel.renewalmatrix/renewalmatrix · alive
- com.edgethirteen.www/renewal-matrix · not found
- SUNAGO Matrix com.sunago-matrix/matrix · needs auth
- io.factorguide/factorguide · alive
- Barcode Tools (decode, render, GTIN validate) io.github.appvantagelabs2-a11y/barcode · alive
- Utility Matrix io.github.helphub369/utility-matrix · alive
- io.github.inity13/decisionmatrix-mcp · alive
- OpenClaw FinOps io.github.maryadawson-code/openclaw-finops · needs auth
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.