io.github.matematicsolutions/mcp-krs

mcp-krs

Is the io.github.matematicsolutions/mcp-krs MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-01.

MCP server for the Polish KRS company registry via the official Ministry of Justice API.

alive probed 2026-11-14 · unchanged since 2026-11-01

3tools

862tokens in Claude

0.4 %of Claude's 200k window

0.3×the median server

291 msto initialize

5 msto list tools

Run it: npx -y @matematicsolutions/mcp-krs@1.2.2 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: mcp-krs 1.2.2
Capabilities: tools
Instructions: 2 911 characters
Of a 1M window: <0.1 % of a 1M context window
Count: 862 tokens in Claude, exact, measured 2026-10-25. With the Claude Code prefix mcp__…__ on each tool name: 895. The o200k_base estimate is 504. Counted again when the tool definitions change. Method.
Repository: https://github.com/matematicsolutions/mcp-krs
Registry: active, updated 2026-10-13 · registry entry
Changes: 2 recorded, reachable in 2 of them. A row is added when the result, the tool count or the cost changes.

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.71×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
get_entity	409	239	47 %
get_entity_full	239	140	28 %
get_board	214	125	25 %

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

Servers that mention matematicsolutions.

We add a row when the result changes. A server with no change keeps its last row.

Probed	Result	Init	Tools	Claude	o200k
2026-10-25 06:53	alive	258 ms	3	862	504
2026-10-18 06:41	alive	291 ms	3		504

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.