mcpcost

io.github.thu-lawyer/keystash

Keystash

Is the Keystash MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

Keychain-backed secret broker: an AI agent can use your keys, but no tool ever returns one.

alive probed 2026-11-14 · unchanged since 2026-10-31

6tools
1.3ktokens in Claude Opus 5.5
0.6 %of Claude's 200k window
0.5×the median server
1.2 sto initialize
4 msto list tools
Run it
uvx keystash@0.4.2 (stdio, probed in a container with the network off)
Host
pypi.org
Reports itself as
keystash 0.4.2
Capabilities
tools
Instructions
none
Of a 1M window
0.1 % of a 1M context window
Count
1.3k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 1.3k. The o200k_base estimate is 688. Counted again when the tool definitions change. Method.
Repository
https://github.com/thu-lawyer/keystash
Website
https://pypi.org/project/keystash/
Registry
active, updated 2026-10-08 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.88×.

Tool≈ Claude tokenso200k estimateShare of this server
secret_store34818527 %
secret_use25913820 %
secret_generate24613119 %
secret_rotate18810015 %
secret_list1477811 %

Compare this server with others.

More servers

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

Servers that mention keychain or returns.

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