io.github.wangkuangkuang/jev-mcp-server
Jev MCP Server
Is the Jev MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.
MCP server for Jev (TypeSafe System One): typed decisions with calibrated probabilities.
alive probed 2026-11-15 · unchanged since 2026-10-30
- Run it
- uvx jev-mcp-server@0.2.2 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- jev 1.30.0
- Capabilities
- experimental, prompts, resources, tools
- Instructions
- none
- Of a 1M window
- 0.3 % of a 1M context window
- Count
- 2.9k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 3.0k. The o200k_base estimate is 1.8k. Counted again when the tool definitions change. Method.
- Registry
- active, updated 2026-09-22 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.64×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| classify | 493 | 300 | 17 % |
| compare | 452 | 275 | 16 % |
| choice | 449 | 273 | 16 % |
| score | 446 | 271 | 15 % |
| verify | 377 | 229 | 13 % |
Compare this server with others.
More servers
Other registry entries on pypi.org, the ones next to this name; all of them.
- Mac Mail MCP io.github.wagamama/mac-mail-mcp · alive
- CrawlEyes MCP Server io.github.waiky-github/CrawlEyes · alive
- Scope Analytics io.github.wally827/scope-analytics-mcp · alive
- Kindex io.github.wandercom/kindex · crashed on start
- reMarkable MCP Server io.github.wavyrai/rm-mcp · needs env
- Steamworks Release Assistant io.github.wazzapsenk/steamworks-mcp · alive
- MCP1 Weather Query io.github.wcnm8888/mcp1-weather-query · alive
- Open Agent Commons io.github.wd666430-rgb/open-agent-commons · crashed on start
Servers that mention probabilities or calibrated.
- Hunch app.hunchsheet/hunch · needs auth
- a2a2p — Agent-to-Agent-to-Physical com.a2a2p/a2a2p · alive
- Anteproof com.anteproof/anteproof · alive
- EloEdge: Kalshi model probabilities com.eloedge/kalshi-prediction-markets · needs auth
- com.footdigest/footdigest · alive
- Hesperan com.hesperan/mcp · alive
- SYNTHORA x402 Intelligence Mesh com.hergertsynthora/synthora-x402 · alive
- Oddsradarwire — Live & Prematch Betradar Odds with No-Vig Probabilities com.oddsradarwire/betradar-odds · not MCP
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
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
- The server answers initialize and tools/list. Nothing to fix.