io.github.mrfentmen/onix-mcp
onix-mcp
Is the io.github.mrfentmen/onix-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-13.
ONIX MCP: parse book metadata, validate products, titles and identifiers.
alive probed 2026-11-14 · unchanged since 2026-11-13
- Run it
- npx -y @mrfentmen/onix-mcp@1.0.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- onix-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, 1.86×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| search | 267 | 144 | 10 % |
| diff | 243 | 131 | 9 % |
| get_record | 221 | 119 | 8 % |
| write_file | 217 | 117 | 8 % |
| list_records | 215 | 116 | 8 % |
Compare this server with others, or with the servers that share its tool set.
Same tool set as 5 other servers
These registry entries have the same tool names and the same schema sizes.
- io.github.mrfentmen/aixm-mcp npmjs.com
- io.github.mrfentmen/alto-mcp npmjs.com
- io.github.mrfentmen/inci-mcp npmjs.com
- io.github.mrfentmen/mods-mcp npmjs.com
- io.github.mrfentmen/sage-accounting-mcp npmjs.com
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- io.github.mrfentmen/omnet-plus-plus-ned-mcp · alive
- io.github.mrfentmen/omop-cdm-mcp · alive
- io.github.mrfentmen/on-this-day-mcp · alive
- io.github.mrfentmen/onesignal-mcp · alive
- io.github.mrfentmen/ooc-mcp · alive
- io.github.mrfentmen/opa-mcp · alive
- io.github.mrfentmen/opal-mcp · alive
- io.github.mrfentmen/open-canada-mcp · alive
Servers that mention onix.
- Merlonix Monitoring com.merlonix/monitoring · alive
- Fonixia — Standardiste téléphonique IA (France) fr.fonixia/agent-vocal · needs auth
- Neonix MCP io.github.neonix-video/neonix-mcp · not found
- IBAN Validator io.github.peonixo147/iban-validated · not found
- io.github.mrfentmen/nutritionix-mcp · alive
- Seonix io.github.pahaa97/seonix · needs auth
- AirStrings io.github.symbionix-sl/airstrings-cli · not probed
- Flamingo File Tools io.github.israeldi/flamingo-file-tools · 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.