Cortex MCP server

by abbacusgroup·io.github.abbacusgroup/cortex·v0.2.2

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Persistent knowledge system with OWL-RL reasoning and 22 MCP tools. Local-first.

C65/100grade C

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Safety scan

C65/100

full report

Adoption

New

55 downloads/wk

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

Cortex tools (22, 3 write)

write = sends, deletes, buys or posts

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

cortex_capture
Capture a knowledge object. When calling via MCP, YOU (Claude) are the classifier.
cortex_classify
Classify or reclassify an existing knowledge object.
cortex_context
Get a briefing (summaries only) for a topic. Token-efficient.
cortex_debug_memory
Take tracemalloc memory snapshots for leak diagnosis.
cortex_debug_sessions
Return MCP session table diagnostics (admin, localhost only).
cortex_deletewrite action
Delete a knowledge object.
cortex_dossier
Build an entity/topic-centric intelligence brief.
cortex_export
Export a knowledge object.
cortex_feedback
Provide explicit relevance feedback for an object.
cortex_graph
Get the knowledge graph around an object or entity.
cortex_graph_data
Return graph data in Cytoscape.js format for dashboard visualization.
cortex_linkwrite action
Create a relationship between two knowledge objects.
cortex_list
List knowledge objects with optional filters.
cortex_list_entities
List entities in the knowledge graph, optionally filtered by type.
cortex_pipeline
Re-run the intelligence pipeline on an existing object.
cortex_query_trail
Return the most recent search query log entries.
cortex_read
Read a knowledge object in full detail.
cortex_reasonwrite action
Run advanced reasoning: contradictions, patterns, gaps, staleness.
cortex_safety_check
Review a potentially destructive action before executing.
cortex_search
Search knowledge objects with hybrid keyword + semantic + graph ranking.
cortex_status
Get Cortex status, health metrics, and object counts.
cortex_synthesize
Generate a synthesis of recent knowledge.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings

Code scan48 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 qualitylocal package, no credentials required12/15
Maintenancerepository not readable: repo not found3/15
Maintainer identityno repository or website to verify2/10

Overall 65/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

How Cortex compares

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

Safety score: 65/100; higher than 20% of 48,255 servers
Tools: 22; the typical server has 7
Tools that change things: 14%; typical: 0%. Fewer write tools means less an agent can break
Downloads a week: 55; more than 46% of 12,191 servers with a package

What its tools let an agent do: 19 read · 3 change

Install Cortex in Claude Code, Cursor or VS Code

claude mcp add cortex -- uvx abbacus-cortex

Add to Cursor

Cortex: common questions

Is Cortex MCP server safe?: With care: it is graded C, so read the findings first (65/100). Read the Cortex safety report
How do I install Cortex?: It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Cortex need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Cortex maintained?: The latest release is v0.2.2.
How does Cortex compare with other MCP servers?: safety score 65/100 (higher than 20% of 48,255 servers); tools 22 (the typical server has 7); tools that change things 14% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.