mcpcost

io.github.jakubro/folio

Folio

Is the Folio MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-14.

A live view of a folder of markdown and data, and read-only tools over what the folder holds.

alive probed 2026-11-14

16tools
7.3ktokens in Claude Opus 5.5
3.6 %of Claude's 200k window
2.9×the median server
267 msto initialize
6 msto list tools
Run it
npx -y @jakubro/folio@0.6.0 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
folio 0.6.0
Capabilities
tools
Instructions
3 195 characters
Of a 1M window
0.7 % of a 1M context window
Count
7.3k tokens in Claude Opus 5.5, exact, measured 2026-11-14. With the Claude Code prefix mcp__…__ on each tool name: 7.4k. The o200k_base estimate is 5.1k. Counted again when the tool definitions change. Method.
Repository
https://github.com/jakubro/folio
Website
https://jakubro.github.io/folio/
Registry
active, updated 2026-11-13 · 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, 1.43×.

Tool≈ Claude tokenso200k estimateShare of this server
folio_query6604629 %
folio_health6084268 %
folio_kinds6044238 %
folio_related5343747 %
folio_provenance5333737 %

Compare this server with others.

More servers

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

Servers that mention folio.

History

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

ProbedResultInitToolsClaudeo200k
2026-11-14 08:08alive211 ms167.3k5.1k
2026-11-09 08:45alive267 ms166.9k4.8k

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