io.github.mrfentmen/usace-water-mcp

usace-water-mcp

Is the io.github.mrfentmen/usace-water-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-29.

US Army Corps of Engineers water data: reservoir and river levels, project lists and time series.

alive probed 2026-11-15 · unchanged since 2026-10-29

5tools

927tokens in Claude Opus 5.5

0.5 %of Claude's 200k window

0.4×the median server

352 msto initialize

11 msto list tools

Run it: npx -y @mrfentmen/usace-water-mcp@1.0.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: usace-water-mcp 1.0.0
Capabilities: tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 927 tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 992. The o200k_base estimate is 526. Counted again when the tool definitions change. Method.
Repository: https://github.com/mrfentmen/awesome-servers
Registry: active, updated 2026-10-28 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.76×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
time_series	305	173	33 %
levels	211	120	23 %
projects	171	97	18 %
project	169	96	18 %
offices	70	40	8 %

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

Servers that mention usace or engineers or reservoir.

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.