io.github.mrfentmen/submarine-cables-mcp

submarine-cables-mcp

Is the io.github.mrfentmen/submarine-cables-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-29.

Submarine communications cables: list, search, landing points and route geometry from TeleGeography.

alive probed 2026-11-15 · unchanged since 2026-10-29

5tools

762tokens in Claude Opus 5.5

0.4 %of Claude's 200k window

0.3×the median server

321 msto initialize

7 msto list tools

Run it: npx -y @mrfentmen/submarine-cables-mcp@1.0.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: submarine-cables-mcp 1.0.0
Capabilities: tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 762 tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 837. The o200k_base estimate is 428. Counted again when the tool definitions change. Method.
Repository: https://github.com/mrfentmen/awesome-servers
Registry: active, updated 2026-10-28 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.78×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
search_cables	183	103	24 %
cable_landing_points	182	102	24 %
cable_detail	142	80	19 %
cable_route	134	75	18 %
list_cables	121	68	16 %

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

Servers that mention communications or telegeography.

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.