io.github.rog0x/string

mcp-string-tools

Is the io.github.rog0x/string MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

String analyzer, diff, templates for AI agents

alive probed 2026-11-14 · unchanged since 2026-10-31

5tools

1.3ktokens in Claude Opus 5.5

0.7 %of Claude's 200k window

0.5×the median server

240 msto initialize

9 msto list tools

Run it: npx -y @rog0x/mcp-string-tools@1.0.2 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: mcp-string-tools 1.0.0
Capabilities: tools
Instructions: none
Of a 1M window: 0.1 % of a 1M context window
Count: 1.3k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 1.4k. The o200k_base estimate is 747. Counted again when the tool definitions change. Method.
Repository: https://github.com/rog0x/mcp-string-tools
Registry: active, updated 2026-03-22 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.79×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
transform_string	414	231	31 %
generate_slug	285	159	21 %
render_template	244	136	18 %
diff_strings	235	131	18 %
analyze_string	161	90	12 %

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

Servers that mention string.

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.