io.github.mrfentmen/npms-mcp

npms-mcp

Is the io.github.mrfentmen/npms-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.

Keyless MCP server for npms.io: npm package quality, popularity and maintenance scores plus search.

alive probed 2026-11-14 · unchanged since 2026-10-30

2tools

316tokens in Claude Opus 5.5

0.2 %of Claude's 200k window

0.1×the median server

312 msto initialize

8 msto list tools

Run it: npx -y npms-mcp@1.0.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: npms-mcp 1.0.0
Capabilities: tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 316 tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 338. The o200k_base estimate is 170. Counted again when the tool definitions change. Method.
Repository: https://github.com/mrfentmen/awesome-mcps
Registry: active, updated 2026-09-21 · 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_packages	182	98	58 %
get_package	134	72	42 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention npms or maintenance or popularity.

NPMScan io.github.salemalem/npmscan · needs auth
openaso ai.openaso/openaso · needs auth
Domus app.getdomus/domus · needs auth
app.rowb.septic-log/maintenance · alive
Namesake — baby name catalog and guides baby.namesake/discovery · alive
Jet Tracker br.com.jettracker/jet-tracker · needs auth
Maintenance Concierge AI com.checkmycontractorquote/maintenance-concierge-ai · not found
Claudeers MCP Server com.claudeers/mcp · alive

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.