io.github.qinisolabs/localecheck

localecheck

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

Verified locale data for AI agents: dates, phone, currency, tax, holidays, addresses (UK/US)

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

7tools

1.6ktokens in Claude Opus 5.5

0.8 %of Claude's 200k window

0.6×the median server

628 msto initialize

9 msto list tools

Run it: npx -y localecheck@0.1.1 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: localecheck 0.1.0
Capabilities: tools
Instructions: none
Of a 1M window: 0.2 % of a 1M context window
Count: 1.6k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 1.6k. The o200k_base estimate is 910. Counted again when the tool definitions change. Method.
Repository: https://github.com/qinisolabs/localecheck
Registry: active, updated 2026-06-15 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.72×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
tax_rate	260	151	17 %
parse_date	258	150	16 %
format_currency	232	135	15 %
is_holiday	231	134	15 %
validate_phone	217	126	14 %

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

Servers that mention addresses or currency.

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.