io.github.mrfentmen/amtrak-mcp

amtrak-mcp

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

Amtrak realtime: every train on the map with delay, speed and next stop, plus route and station.

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

5tools

764tokens in Claude Opus 5.5

0.4 %of Claude's 200k window

0.3×the median server

222 msto initialize

5 msto list tools

Run it: npx -y @mrfentmen/amtrak-mcp@1.0.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: amtrak-mcp 1.0.0
Capabilities: tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 764 tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 829. The o200k_base estimate is 418. 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, 1.83×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
route_trains	177	97	23 %
stations	172	94	22 %
train_status	152	83	20 %
station	137	75	18 %
live_trains	126	69	17 %

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

Servers that mention amtrak or realtime or station.

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.