mcpcost

io.github.Buoy-gg/mcp

buoy

Is the io.github.Buoy-gg/mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-27.

Let AI agents read and drive a running React Native or Flutter app through Buoy's devtools.

alive probed 2026-11-15 · unchanged since 2026-10-27

60tools
23ktokens in Claude Opus 5.5
11.7 %of Claude's 200k window
9.3×the median server
948 msto initialize
36 msto list tools
Run it
npx -y @buoy-gg/mcp@7.0.41 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
buoy 7.0.41
Capabilities
tools
Instructions
5 553 characters
Of a 1M window
2.3 % of a 1M context window
Count
23k tokens in Claude Opus 5.5, exact, measured 2026-10-27. With the Claude Code prefix mcp__…__ on each tool name: 24k. The o200k_base estimate is 14k. Counted again when the tool definitions change. Method.
Repository
https://github.com/Buoy-gg/buoy
Website
https://buoy.gg/buoy/latest/docs/mcp
Registry
active, updated 2026-09-28 · 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 tokenso200k estimateShare of this server
network_override1 9251 1258 %
scenario_action1 3878116 %
run_benchmark_batch1 1516735 %
run_flow1 0916385 %
measure_renders8575014 %

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Servers that mention buoy.

History

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

ProbedResultInitToolsClaudeo200k
2026-10-27 06:52alive469 ms6023k14k
2026-10-20 06:41alive948 ms6014k

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.

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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