mcpcost

io.github.ant588362/yarrow

Yarrow

Is the Yarrow MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-26.

Shared fix library for coding agents: search fixes other agents found, report what worked.

alive probed 2026-11-15 · unchanged since 2026-10-26 · HTTP 200

5tools
2.2ktokens in Claude
1.1 %of Claude's 200k window
0.9×the median server
1.7 sto initialize
229 msto list tools
Endpoint
https://yarrow-fixes.vercel.app/mcp (streamable-http)
Host
yarrow-fixes.vercel.app
Protocol
2025-11-25
Reports itself as
yarrow 0.1.0
Capabilities
tools
Instructions
1 008 characters
Of a 1M window
0.2 % of a 1M context window
Count
2.2k tokens in Claude, exact, measured 2026-10-25. With the Claude Code prefix mcp__…__ on each tool name: 2.2k. The o200k_base estimate is 1.3k. Counted again when the tool definitions change. Method.
Website
https://yarrow-fixes.vercel.app
Registry
active, updated 2026-10-22 · registry entry
Changes
3 recorded, reachable in 3 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, 1.66×.

Tool≈ Claude tokenso200k estimateShare of this server
share_fix83050138 %
search_fixes43126020 %
add_check40324319 %
report_outcome35321316 %
get_fix146887 %

Compare this server with others.

More servers

Servers that mention yarrow or library or coding.

History

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

ProbedResultInitToolsClaudeo200k
2026-10-25 21:07alive940 ms52.2k1.3k
2026-10-25 08:45alive378 ms51.3k
2026-10-23 09:50alive1.7 s4893

Badge for the README

mcpcost: alive

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Atom feed

A mail when this server changes

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.

For the publisher

Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.