io.github.mindstone/mcp-server-canary

Canary

Is the Canary MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.

Mindstone-internal release-pipeline test connector; not for use. Single ping tool; no auth.

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

1tools

182tokens in Claude Opus 5.5

<0.1 %of Claude's 200k window

0.1×the median server

316 msto initialize

9 msto list tools

Run it: npx -y @mindstone/mcp-server-canary@0.0.4 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: canary-mcp-server 0.0.4
Capabilities: tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 182 tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 195. The o200k_base estimate is 108. Counted again when the tool definitions change. Method.
Repository: https://github.com/mindstone/mcp-servers
Registry: active, updated 2026-06-11 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.69×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
ping	182	108	100 %

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

Servers that mention canary.

ai.canaryusers/canaryusers · alive
DomainCanary com.domaincanary/mcp · alive
La Palma 24 - Vacation Rentals io.github.AyozeMiguel/lapalma24-mcp · alive
Phoenix operational_context unpaid canary io.github.PhoenixClaw01/operational-context · not found
io.github.brkd-h1/empty-public-canary · not MCP
io.github.brkd-h1/readme-canary · not MCP
Bursia MCP Visitor Gateway Canary io.github.soyeladice-svg/bursia-canary · not found
In Viaggio alle Canarie it.inviaggioallecanarie/canarie · 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.