mcpcost

io.github.Aethis-ai/aethis-mcp

aethis

Is the io.github.Aethis-ai/aethis-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-13.

Deterministic eligibility decisions and test-driven rule authoring via the Aethis developer API.

alive probed 2026-11-15 · unchanged since 2026-11-13

36tools
17ktokens in Claude Opus 5.5
8.7 %of Claude's 200k window
6.9×the median server
554 msto initialize
31 msto list tools
Run it
npx -y aethis-mcp@0.24.0 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
aethis 0.24.0
Capabilities
prompts, tools
Instructions
3 110 characters
Of a 1M window
1.7 % of a 1M context window
Count
17k tokens in Claude Opus 5.5, exact, measured 2026-11-13. With the Claude Code prefix mcp__…__ on each tool name: 18k. The o200k_base estimate is 10k. Counted again when the tool definitions change. Method.
Repository
https://github.com/Aethis-ai/aethis-mcp
Website
https://docs.aethis.ai
Registry
active, updated 2026-11-12 · registry entry
Changes
3 recorded, reachable in 3 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
aethis_set_bundle_contract1 2627397 %
aethis_create_ruleset1 1086496 %
aethis_set_tests1 0936406 %
aethis_refine_sections8234825 %
aethis_refine8204805 %

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 deterministic or eligibility.

History

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

ProbedResultInitToolsClaudeo200k
2026-11-13 08:47alive255 ms3617k10k
2026-11-10 08:52alive303 ms3516k9.4k
2026-10-16 06:24alive554 ms3515k8.9k

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