mcpcost

io.github.Silbercue/public-browser

Public Browser

Is the Public Browser MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.

Chrome over CDP for AI agents. Blind benchmark vs agent-browser: -33% tokens, -33% cost, -32% time

alive probed 2026-11-15 · unchanged since 2026-10-30

25tools
7.6ktokens in Claude Opus 5.5
3.8 %of Claude's 200k window
3.0×the median server
453 msto initialize
41 msto list tools
Run it
npx -y public-browser@3.0.0 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
public-browser 3.0.0
Capabilities
tools
Instructions
2 518 characters
Of a 1M window
0.8 % of a 1M context window
Count
7.6k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 7.8k. The o200k_base estimate is 4.3k. Counted again when the tool definitions change. Method.
Repository
https://github.com/Silbercue/public-browser
Website
https://github.com/Silbercue/public-browser#readme
Registry
active, updated 2026-09-24 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.74×.

Tool≈ Claude tokenso200k estimateShare of this server
run_plan7014039 %
set_page_data6423698 %
observe4832786 %
wait_for4592646 %
drag4452566 %

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Servers that mention browser.

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mcpcost: alive

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

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