Prototype · Preview: every server in the official registry, synced every 30 minutes. Reviews and accounts come in a later step.
PopNx MCPMCP servers for people who use AI · explained in plain words

Cortex

by FilippoPiloversion 1.1.0i★ –iRuns in the cloud
Registry nameio.github.FilippoPilo/cortex

Install

Overview

Description from the maker (original English)

Patent-pending semantic memory for AI agents: quality-gated writes, conflict tracking. Free trial.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • The registry lists no key to fill in.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://skynetlab-cortex-saas-mcp.cortex-320.workers.dev/mcp

Run this in your terminal

claude mcp add --transport http cortex https://skynetlab-cortex-saas-mcp.cortex-320.workers.dev/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "cortex": {
      "url": "https://skynetlab-cortex-saas-mcp.cortex-320.workers.dev/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "cortex": {
      "type": "http",
      "url": "https://skynetlab-cortex-saas-mcp.cortex-320.workers.dev/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://skynetlab-cortex-saas-mcp.cortex-320.workers.dev/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account FilippoPilo, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • … Not checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 7233 servers in this category
  • Published to the registry more recently than 39% of the other 7233 servers in this category
  • Basic checks equal to or better than 100% of the other 7233 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Cortex safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated 3 days ago
Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago
Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated 44 days ago
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Cortex — Semantic Memory for AI Agents

One external brain, model-agnostic, in production. Connect it to Claude in two minutes — free trial, no credit card.

Cortex is a patent-pending semantic memory infrastructure developed by SKYNETLAB (Bergamo, Italy). Connected to your AI assistant as a remote MCP connector, it lets your conversations save decisions, context and sources — and find them again in every later session. Your AI remembers, and can show *why* it remembers.

🌐 Website: skynetlab-cortex.com · 📄 Patent · 📊 Benchmark · 📚 Paper · 💶 Pricing

🇮🇹 Versione italiana: README.it.md


Why Cortex is not "just another memory plugin"

Most memory tools for AI agents record what the agent did and retrieve similar text later. Cortex models what is true and how reliable it is:

CapabilityWhat it means
Quality Gate on writeEvery memory passes a novelty/redundancy check before being stored. No junk accumulation.
Typed claims & conflict trackingFacts are extracted as claims; contradictions between memories are detected and tracked, not silently overwritten.
Knowledge graphMemories are linked by entities and typed relations, not just vector similarity.
Coherence metric (Ψ_C)Each memory carries a native coherence score — the system knows how well a memory fits what it already knows.
Memory consolidation ("REM")A continuous background cycle consolidates episodic memories into long-term knowledge.
Transparent evidenceAnswers can cite the memories and sources they come from.

Cortex runs on globally distributed edge infrastructure operated in the European Union. The memory engine is covered by Italian patent application UIBM 102026000014026 (filed 15 May 2026).

Quick start — Claude (web / desktop / mobile)

Requirements: a Claude plan that supports custom connectors (the "Connectors" entry appears in Settings). No Cortex account needed beforehand — it is created on first sign-in.

  1. In Claude open Settings → Connectors → Add custom connector
  2. Paste this URL and confirm:
   https://skynetlab-cortex-saas-mcp.cortex-320.workers.dev/mcp
  1. Authorize access on the Cortex consent page (Google or email sign-in). Your personal memory space is created automatically, isolated from every other user.

That's it. Talk to Claude as usual: *"Remember that we chose supplier X"*, *"what did we decide about the budget?"*, *"show me the sources for this claim"*. Claude picks the right tool on its own.

Quick start — Claude Code

claude mcp add --transport http cortex https://skynetlab-cortex-saas-mcp.cortex-320.workers.dev/mcp

Then authenticate when prompted (/mcp shows connection status).

Quick start — other MCP clients (stdio bridge)

For MCP clients that don't support remote connectors natively, use the mcp-remote bridge. Example configuration (see examples/):

{

"mcpServers": { "cortex": { "command": "npx", "args": ["-y", "mcp-remote", "https://skynetlab-cortex-saas-mcp.cortex-320.workers.dev/mcp"] } } }

Quick start — this repository as a local stdio server

This repository also ships a small stdio MCP server (server/) that exposes the Cortex tools locally and forwards every call to the hosted service. It is meant for MCP clients, registries and evaluators that need a local process: it starts, lists its seven tools and answers introspection with no configuration at all; tool calls are forwarded when an access token is set.

git clone https://github.com/FilippoPilo/cortex-connector.git

cd cortex-connector npm install CORTEX_ACCESS_TOKEN= node server/index.js

Or with Docker:

docker build -t cortex-connector .

docker run -i --rm -e CORTEX_ACCESS_TOKEN= cortex-connector

VariableMeaning
CORTEX_ACCESS_TOKENBearer token for the hosted connector (the OAuth access token issued at sign-in, for example the one mcp-remote stores). Optional: without it the server only lists tools.
CORTEX_MCP_URLRemote endpoint, defaults to the hosted Cortex connector.

npm test runs a self test (initialize, tools/list, one call without token).

The seven tools

ToolTypeDescription
Search memoriesreadSemantic search across your memories
Fetch memoryreadFull detail of one memory, with its sources
Recall & synthesizereadNarrative synthesis of what Cortex knows about a topic
Show conflictsreadTracked contradictions between memories
Save memorywriteStores a memory — after a quality check against duplicates and redundancy
Write statusreadOutcome of a queued save: quality-gate verdict and any open conflicts
Forget memorydestructiveDeletes a memory — always with explicit confirmation

Data & privacy

Memories are personal: each user only sees their own. They are exportable and deletable on request, and the infrastructure operates in the European Union. Details: Privacy Policy.

To disconnect, simply remove the connector from your client's settings; your memories remain in your Cortex account until you request their deletion.

Is this open source?

The Cortex memory engine is a hosted, patent-pending service — its source code is not published. This repository contains the public documentation, the client-side configuration examples and a small stdio bridge (server/) for connecting to it. Everything in this repository is released under the MIT License.

Support

📧 info@skynetlab.net · Contact page


*Cortex is a SKYNETLAB product — independent research lab & deeptech studio, Bergamo, Italy. Founder: Filippo Pilotta (ORCID 0009-0000-5002-4199).*

*Some content and product outputs are generated or assisted by artificial intelligence, pursuant to Art. 50 of Reg. (EU) 2024/1689. AI transparency.*

Ask PopNx