mcpcost

io.github.ezolabs/ezo-watcher

EZO Watcher

Is the EZO Watcher MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-12.

Self-hosted monitoring your coding agent installs, proves and fixes. Alert wall, pager, MCP.

alive probed 2026-11-14 · unchanged since 2026-11-12

16tools
8.5ktokens in Claude Opus 5.5
4.2 %of Claude's 200k window
3.4×the median server
197 msto initialize
13 msto list tools
Run it
npx -y ezo-watcher@0.1.0 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
ezo-watcher 1.0.0
Capabilities
tools
Instructions
371 characters
Of a 1M window
0.8 % of a 1M context window
Count
8.5k tokens in Claude Opus 5.5, exact, measured 2026-11-12. With the Claude Code prefix mcp__…__ on each tool name: 8.7k. The o200k_base estimate is 5.5k. Counted again when the tool definitions change. Method.
Repository
https://github.com/ezolabs/ezo-watcher
Website
https://ezo-watcher-demo.pages.dev
Registry
active, updated 2026-11-05 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.53×.

Tool≈ Claude tokenso200k estimateShare of this server
park1 20178614 %
recheck6554298 %
verify_fix6164037 %
list_incidents6083987 %
resolve5933887 %

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

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