mcpcost

io.github.dvd90/chassis-mcp

Chassis

Is the Chassis MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

Scaffold an Express 5 + TypeScript backend: database, auth, optional Next.js front end.

alive probed 2026-11-15 · unchanged since 2026-10-31

3tools
856tokens in Claude Opus 5.5
0.4 %of Claude's 200k window
0.3×the median server
310 msto initialize
9 msto list tools
Run it
npx -y chassis-mcp@0.1.2 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
chassis-mcp 0.1.0
Capabilities
tools
Instructions
none
Of a 1M window
<0.1 % of a 1M context window
Count
856 tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 892. The o200k_base estimate is 486. Counted again when the tool definitions change. Method.
Repository
https://github.com/dvd90/chassis
Registry
active, updated 2026-07-30 · 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 tokenso200k estimateShare of this server
create_chassis_project54430964 %
chassis_conventions19411023 %
list_chassis_options1186714 %

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

Servers that mention chassis or typescript or database.

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mcpcost: 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.

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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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