MCP.Market

Ejentum MCP server

online · 100% uptime
by ejentum·io.github.ejentum/ejentum-mcp·v0.2.2·16 stars

Reasoning, code, anti-deception, memory harness MCP tools. Stdio or HTTPS api.ejentum.com/mcp

B82/100grade B
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Safety scan
B82/100

full report

Adoption
Growing

16 stars74 downloads/wk

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Ejentum tools (4, 1 write)

write = sends, deletes, buys or posts
  • ejentum_domainsFree

    List the 6 invariant cognitive failure dimensions and primary failure modes mapped by Ejentum.

  • ejentum_fts_searchwrite actionFree

    Execute sub-millisecond SQLite FTS5 full-text keyword search and BM25 ranking across the 311 deterministic reasoning abilities.

  • ejentum_graphFree

    Traverse the 933-edge cognitive synergy graph to compose a multi-hop Cognitive Directed Acyclic Graph (DAG) with Root, Prerequisite, Amplifier, and Fallback operators.

  • ejentum_scaffoldFree

    Retrieve a deterministic reasoning scaffold (Reasoning-Augmented Retrieval) to prevent hallucinations, causal inversion, and compounding multi-step failures.

Public scan report

scanner v0.1.10 · 2026-10-14 · same rubric, same numbers if you re-run it

no findings
  • Code scan3 source files scanned25/25
  • Live reliabilityremote reachable in 798ms20/20
  • Tool poisoning4 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenancelast push 125 days ago8/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Ejentum compares

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

Safety score
82/100
higher than 63% of 48,255 servers
Tools
4
the typical server has 7
Tools that change things
25%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
269 ms
faster than 52% of 30,031 servers
GitHub stars
16
more than 90% of 28,688 servers
Downloads a week
74
more than 55% of 12,191 servers with a package

What its tools let an agent do: 3 read · 1 change

Install Ejentum in Claude Code, Cursor or VS Code

claude mcp add --transport http ejentum-mcp https://api.ejentum.com/mcp
Add to Cursor

What the publisher says

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

ejentum-mcp

MCP server that improves LLM reasoning on complex, multi-step, or multi-constraint tasks. Before the agent generates, it calls one of eight tools to retrieve a cognitive operation: a structured procedure (numbered steps with the failure pattern to refuse and a falsification test) paired with an executable reasoning topology (a DAG of those steps with decision gates, parallel branches, bounded loops, meta-cognitive exits, and escape paths). The agent reads both layers before producing its response.

Eight tools split into two retrieval modes:

  • Dynamic (4 tools: reasoning, code, anti-deception, memory): the top-1 abstract operation from a library of 679, selected by semantic match on the query string. Available on all tiers including the 30-day free trial.
  • Adaptive (4 tools: adaptive-reasoning, adaptive-code, adaptive-anti-deception, adaptive-memory): the same retrieval pool, but an adapter LLM rewrites every step and DAG node in the matched operation with task-specific identifiers (e.g., extractdurationestimates becomes extractmigrationdurationestimates(DDLtime|backfilltime|triggeroverhead|lockholdtime)). Adds ~2-3 s of latency; requires the Go or Super tier.

Two install paths use the same EJENTUMAPIKEY:

  1. Stdio via npx -y ejentum-mcp for Claude Desktop, Cursor, Windsurf, Codex CLI, Claude Code, Cline, Continue, and any client that spawns MCP servers as subprocesses.
  2. Hosted Streamable HTTP at https://api.ejentum.com/mcp for n8n MCP Client and any HTTP-MCP client. Send Authorization: Bearer YOUREJENTUMAPI_KEY.

Install

You need:

  • An Ejentum API key. 30-day free trial (no card) at ejentum.com/pricing.
  • Node.js 18+.

Install from npm

npm install ejentum-mcp

Or skip the install and reference it with npx -y ejentum-mcp directly in your client config (shown below).

Manual install

Claude Desktop

Open claudedesktopconfig.json:

  • macOS: ~/Library/Application Support/Claude/claudedesktopconfig.json
  • Windows: %APPDATA%\Claude\claudedesktopconfig.json
{
  "mcpServers": {
    "ejentum": {
      "command": "npx",
      "args": ["-y", "ejentum-mcp"],
      "env": { "EJENTUM_API_KEY": "ej_..." }
    }
  }
}

Restart Claude Desktop. The eight tools appear in the tool picker.

Cursor / Windsurf

Open MCP settings → Add new MCP server → paste the same ejentum block as above.

Claude Code (CLI)

claude mcp add ejentum -e EJENTUM_API_KEY=ej_... -- npx -y ejentum-mcp

n8n MCP Client node

Add an MCP Client node, transport stdio, command npx, args ["-y", "ejentum-mcp"], env { "EJENTUMAPIKEY": "ej_..." }.

Wire contract

The stdio MCP server and the hosted endpoint both proxy to the same upstream:

Shortened. The full README is on GitHub.

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

Grade history

  • 2026-10-14restoreC → Bscore 82
  • 2026-10-09downgradeB → Cscore 55: Remote endpoint did not respond

Ejentum: common questions

Is Ejentum MCP server safe?
Mostly: it is graded B (82/100). Read the Ejentum safety report
How do I install Ejentum?
It runs remotely at api.ejentum.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Ejentum need an API key?
Yes. The registry entry asks for EJENTUM_API_KEY, Authorization.
Is Ejentum maintained?
The last commit was 146 days ago (2026-06-11). The latest release is v0.2.2.
Is Ejentum up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Ejentum compare with other MCP servers?
safety score 82/100 (higher than 63% of 48,255 servers); tools 4 (the typical server has 7); tools that change things 25% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.