mcpcost

io.github.lexang/pgbrake

pgbrake

Is the pgbrake MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-06.

Postgres brake for AI agents: risky SQL waits for approval, UPDATE/DELETE get one-command undo.

alive probed 2026-11-14 · unchanged since 2026-11-06

5tools
607tokens in Claude Opus 5.5
0.3 %of Claude's 200k window
0.2×the median server
2.0 sto initialize
5 msto list tools
Run it
uvx pgbrake@0.3.0 (stdio, probed in a container with the network off)
Host
pypi.org
Reports itself as
pgbrake
Capabilities
prompts, resources, tools
Instructions
343 characters
Of a 1M window
<0.1 % of a 1M context window
Count
607 tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 657. The o200k_base estimate is 314. Counted again when the tool definitions change. Method.
Repository
https://github.com/lexang/pgbrake
Registry
active, updated 2026-11-06 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.93×.

Tool≈ Claude tokenso200k estimateShare of this server
execute1749029 %
undo1316822 %
query1065518 %
approval_status1065518 %
list_changes894615 %

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Servers that mention approval or postgres.

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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.

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