io.github.mrfentmen/tfl-mcp

tfl-mcp

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

TfL live data: line status across tube, DLR and rail, stop search and real-time arrivals - keyless.

alive probed 2026-11-14 · unchanged since 2026-10-29

6tools

972tokens in Claude Opus 5.5

0.5 %of Claude's 200k window

0.4×the median server

304 msto initialize

10 msto list tools

Run it: npx -y @mrfentmen/tfl-mcp@1.0.2 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: tfl-mcp 1.0.2
Capabilities: tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 972 tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 1.0k. The o200k_base estimate is 538. 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, 1.81×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
station_arrivals	211	117	22 %
search_stops	192	106	20 %
line_route	181	100	19 %
line_status	159	88	16 %
stop_detail	154	85	16 %

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

Servers that mention mrfentmen.

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.