io.github.mrfentmen/ntrs-mcp

ntrs-mcp

Is the io.github.mrfentmen/ntrs-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-09.

NASA NTRS: technical reports, conference pape MCP: real tools for real work.

alive probed 2026-11-15 · unchanged since 2026-11-09

3tools

1.0ktokens in Claude Opus 5.5

0.5 %of Claude's 200k window

0.4×the median server

336 msto initialize

8 msto list tools

Run it: npx -y @mrfentmen/ntrs-mcp@1.0.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: ntrs-mcp 1.0.0
Capabilities: tools
Instructions: none
Of a 1M window: 0.1 % of a 1M context window
Count: 1.0k tokens in Claude Opus 5.5, exact, measured 2026-11-09. With the Claude Code prefix mcp__…__ on each tool name: 1.1k. The o200k_base estimate is 583. 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, 1.78×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
search	444	250	43 %
facets	412	232	40 %
record	179	101	17 %

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

Servers that mention conference or technical.

aTars MCP ai.aarna/atars-mcp · server error
FinSight Market Analysis ai.getfinsight/market-analysis · needs auth
MarketCrew — live market data & stock analysis ai.marketcrew/market-data · alive
ai.packmind/mcp-server · not found
Crawlie app.crawlie/crawlie · needs auth
ai.smithery/ref-tools-ref-tools-mcp · needs auth
TraderSpy app.traderspy/traderspy · alive
Icecat biz.icecat/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.