mcpcost

io.github.SamuelDharshi/proofmark-hash

Proofmark Hash

Is the Proofmark Hash MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-07.

Hash text with SHA-256, SHA-512 or SHA3-256, and verify a digest.

alive probed 2026-11-14 · unchanged since 2026-11-07

2tools
293tokens in Claude Opus 5.5
0.1 %of Claude's 200k window
0.1×the median server
186 msto initialize
3 msto list tools
Run it
npx -y proofmark-hash@1.0.0 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
proofmark-hash 1.0.0
Capabilities
tools
Instructions
none
Of a 1M window
<0.1 % of a 1M context window
Count
293 tokens in Claude Opus 5.5, exact, measured 2026-11-07. With the Claude Code prefix mcp__…__ on each tool name: 317. The o200k_base estimate is 153. Counted again when the tool definitions change. Method.
Repository
https://github.com/SamuelDharshi/Proofmark
Registry
active, updated 2026-11-07 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.92×.

Tool≈ Claude tokenso200k estimateShare of this server
verify_hash1538052 %
hash_text1407348 %

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mcpcost: alive

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