mcpcost

io.github.mrfentmen/punycode-mcp

punycode-mcp

Is the io.github.mrfentmen/punycode-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-09.

Convert internationalised domain names between Unicode and punycode (IDNA), label by label.

alive probed 2026-11-14 · unchanged since 2026-11-09

3tools
447tokens in Claude Opus 5.5
0.2 %of Claude's 200k window
0.2×the median server
311 msto initialize
9 msto list tools
Run it
npx -y @mrfentmen/punycode-mcp@1.0.1 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
punycode-mcp 1.0.0
Capabilities
tools
Instructions
none
Of a 1M window
<0.1 % of a 1M context window
Count
447 tokens in Claude Opus 5.5, exact, measured 2026-10-31. With the Claude Code prefix mcp__…__ on each tool name: 483. The o200k_base estimate is 238. Counted again when the tool definitions change. Method.
Repository
https://github.com/mrfentmen/awesome-servers
Registry
active, updated 2026-11-08 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.88×.

Tool≈ Claude tokenso200k estimateShare of this server
domain_to_ascii1528134 %
domain_to_unicode1528134 %
inspect_domain1437632 %

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Servers that mention punycode.

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