io.github.BargLabs/cejel

Cejel

Is the Cejel MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-10.

Offline deterministic engineering-trust certificates for repositories, with no telemetry.

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

1tools

456tokens in Claude Opus 5.5

0.2 %of Claude's 200k window

0.2×the median server

1.4 sto initialize

7 msto list tools

Run it: docker run -i --rm ghcr.io/barglabs/cejel@sha256:898718714e135e8345844353d644b9b8058c2166b472aa6e358a30d63cd66360 (stdio, probed in a container with the network off)
Host: ghcr.io
Reports itself as: @cejel/cejel-mcp 0.6.11
Capabilities: resources, tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 456 tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 464. The o200k_base estimate is 281. Counted again when the tool definitions change. Method.
Repository: https://github.com/BargLabs/cejel
Website: https://cejel.dev
Registry: active, updated 2026-11-10 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.62×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
scan	456	281	100 %

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

lastwords io.github.Arvo-AI/lastwords · alive
supragnosis io.github.Ashon/supragnosis · alive
IPCC AR6 Climate Retrieval io.github.AswaniSahoo/climate-ipcc-rag · not found
Glasir io.github.Attackwave/glasir · crashed on start
io.github.Beever-AI/beever-atlas · alive
Cartographer io.github.BeppeTemp/cartographer · crashed on start
Crypto Exchange Fees io.github.BestBerlin/crypto-exchange-fees · alive
CE-RISE Digital Passport Engineering Assistant io.github.CE-RISE-software/dp-engineering-assistant · alive

Servers that mention deterministic or certificates.

ai.boundaryai/boundaryai · needs auth
ColdState — Deterministic Knowledge Infrastructure ai.coldstate/knowledge · alive
DJZS Trust MCP ai.djzs/trust-mcp · alive
ai.geodesiclabs/governance-platform · alive
MLP Tax Computation Engine ai.lucasandersen/mlp-tax · alive
MakerPortal compute ai.makerportal/compute · alive
Siren ai.mysiren/siren · alive
Snipget ai.snipget/snipget · needs auth

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

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