MCP.Market

OpenJEV MCP server

by markylaredo·io.github.markylaredo/openjev-mcp·v0.2.0·1 stars
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Typed AI judgments for agents: choice, score, and yes/no probabilities instead of prose.

B83/100grade B
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Safety scan
B83/100

full report

Adoption
Growing

1 stars437 downloads/wk

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

OpenJEV tools (5)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • jev_ask
  • jev_batch
  • jev_choice
  • jev_noul
  • jev_score

Public scan report

scanner v0.1.10 · 2026-10-12 · same rubric, same numbers if you re-run it

no findings
  • Code scan13 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 83/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How OpenJEV compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
83/100
higher than 65% of 48,255 servers
Tools
5
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
1
more than 65% of 28,688 servers
Downloads a week
437
more than 86% of 12,191 servers with a package

What its tools let an agent do: 5 read

Install OpenJEV in Claude Code, Cursor or VS Code

Runs npx -y openjev-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add openjev-mcp -- npx -y openjev-mcp
Add to Cursor

What the publisher says

From the OpenJEV repository's README, as published. We do not edit it. Read it on GitHub

openjev-mcp

Give your agent decisions, not paragraphs. An MCP server that turns "classify this", "how severe is this", and "is this urgent?" into typed answers with calibrated probabilities that your code can branch on.

%22%2C%22password%22%3Atrue%7D%5D&config=%7B%22name%22%3A%22openjev%22%2C%22command%22%3A%22npx%22%2C%22args%22%3A%5B%22-y%22%2C%22openjev-mcp%22%5D%2C%22env%22%3A%7B%22OPENJEVAPIKEY%22%3A%22%24%7Binput%3Aopenjevapikey%7D%22%7D%7D)

A real call: one ticket, three questions, one request. Reproduce it with OPENJEVAPIKEY=... npm run demo (demo/run.mjs).

See an agent use it: recorded transcripts of DeepSeek Harness triaging an electric co-op's help desk, from one member complaint to a morning's queue.

It's powered by Jev, TypeSafe's System One model, through the public OpenJEV API. You send one context and any number of independent questions in one call, and the server checks the request locally, retries transient failures, and validates every answer before your agent sees it.

What people use it for

The rule of thumb: if ordinary code can't express the decision but your code needs to act on the result, it's a Jev question.

Quick start

You need Node.js 20+ and an API key from .

Claude Code

claude mcp add openjev --env OPENJEV_API_KEY=your-key -- npx -y openjev-mcp

Cursor, VS Code: use the install buttons above, then paste your key.

Claude Desktop, Windsurf, Cline, and any other client that uses the mcpServers shape:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

OpenJEV: common questions

Is OpenJEV MCP server safe?
Mostly: it is graded B (83/100). Read the OpenJEV safety report
How do I install OpenJEV?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does OpenJEV need an API key?
Yes. The registry entry asks for OPENJEV_API_KEY.
Is OpenJEV maintained?
The last commit was 23 days ago (2026-10-12). The latest release is v0.2.0.
What can I use instead of OpenJEV?
Servers from other publishers that do the same job: Ask Jev MCP server.
How does OpenJEV compare with other MCP servers?
safety score 83/100 (higher than 65% of 48,255 servers); tools 5 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to OpenJEV

Same job from other publishers: the closest match first, then the best rated.

  • Ask Jev
    Evaluate state with typed choice, score, and probability questions.
    A