io.github.mrfentmen/nftables-mcp
nftables-mcp
Is the io.github.mrfentmen/nftables-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-13.
nftables MCP: parse rulesets, validate tables, chains, hooks and policies.
alive probed 2026-11-14 · unchanged since 2026-11-13
- Run it
- npx -y @mrfentmen/nftables-mcp@1.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- nftables-mcp 1.0.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- 0.3 % of a 1M context window
- Count
- 2.6k tokens in Claude Opus 5.5, exact, measured 2026-11-13. With the Claude Code prefix mcp__…__ on each tool name: 2.8k. The o200k_base estimate is 1.4k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/mrfentmen/awesome-servers
- Registry
- active, updated 2026-11-13 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.85×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| search | 266 | 144 | 10 % |
| diff | 242 | 131 | 9 % |
| get_record | 220 | 119 | 8 % |
| write_file | 216 | 117 | 8 % |
| list_records | 214 | 116 | 8 % |
Compare this server with others, or with the servers that share its tool set.
Same tool set as 7 other servers
These registry entries have the same tool names and the same schema sizes.
- io.github.mrfentmen/aama-dxf-mcp npmjs.com
- io.github.mrfentmen/gemstone-mcp npmjs.com
- io.github.mrfentmen/gs1-gdsn-mcp npmjs.com
- io.github.mrfentmen/ipc2581-mcp npmjs.com
- io.github.mrfentmen/omop-cdm-mcp npmjs.com
- io.github.mrfentmen/radiance-mcp npmjs.com
- io.github.mrfentmen/seamly2d-mcp npmjs.com
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- io.github.mrfentmen/neverbounce-mcp · alive
- io.github.mrfentmen/newlisp-mcp · alive
- io.github.mrfentmen/nextbus-mcp · alive
- io.github.mrfentmen/nextflow-mcp · alive
- io.github.mrfentmen/nhl-mcp · alive
- io.github.mrfentmen/nhtsa-mcp · alive
- io.github.mrfentmen/nice-mcp · alive
- io.github.mrfentmen/nickel-mcp · alive
Servers that mention policies or rulesets.
- Katla app.katla/katla · needs auth
- Insuro au.com.insuro/insuro · alive
- co.policyforge/mcp · needs auth
- AegeanBot Direct Stays com.aegeanbot/direct-stays · alive
- Cofferline com.cofferline/treasury · alive
- Hedge Broker com.hedgespecialty.www/broker · needs auth
- Loglune com.loglune/mcp · needs auth
- Prism by Parad1gm: Contract Deadlines and Critical Dates com.parad1gm/prism · 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.