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PopNx MCPMCP servers for people who use AI · explained in plain words

Hebbian Vault

by onetrueclaude-creatorversion 0.2.0i★ 0iRuns on your computer
Registry nameio.github.onetrueclaude-creator/hebbian-vault

How to install

Overview

Description from the maker (original English)

Usage-adaptive Obsidian vault search: Hebbian + PageRank + BM25 hybrid ranking.

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 on your computer
  • Transport: stdio
  • Category: Docs, sheets & office work
  • You need to fill in: HEBBIAN_VAULT_LICENSE

Install

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

Passed 1/2 checks · Runs on your computer

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a Hebbian Vault key (sign up on the maker’s site, may cost money) · Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

  1. Install Python (uv)

    One time only; it works for every server that needs Python (uv)

    Open the Python (uv) download page ↗

  2. Sign up and create a Hebbian Vault key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    How to get a key is in the maker’s README below

  3. Open the Claude desktop app’s settings file

    SettingsDeveloperEdit Config

  4. Paste these settings and save the file

    {
      "mcpServers": {
        "hebbian-vault": {
          "command": "uvx",
          "args": [
            "hebbian-vault"
          ],
          "env": {
            "HEBBIAN_VAULT_LICENSE": "your-value"
          }
        }
      }
    }

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Quit Claude and open it again

  6. Try it

    Use Hebbian Vault and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using Hebbian Vault or shows a Hebbian Vault tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Hebbian Vault yet

Hebbian Vault runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Hebbian Vault

  • You need a Hebbian Vault key (sign up on the maker’s site, may cost money) · Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
  • You need a Hebbian Vault key (sign up on the maker’s site, may cost money) · Install Python (uv) on your computer first (one time)
  • You need a Hebbian Vault key (sign up on the maker’s site, may cost money) · Install Python (uv) on your computer first (one time)
  • You need a Hebbian Vault key (sign up on the maker’s site, may cost money) · Install Python (uv) on your computer first (one time)

B · Others in Docs, sheets & office work that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Works with Claude Code, with some setup first

You need a Hebbian Vault key (sign up on the maker’s site, may cost money) · Install Python (uv) on your computer first (one time)

  1. Install Python (uv)

    One time only; it works for every server that needs Python (uv)

    Open the Python (uv) download page ↗

  2. Sign up and create a Hebbian Vault key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    How to get a key is in the maker’s README below

  3. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  4. Paste this command and press Enter

    claude mcp add hebbian-vault --env HEBBIAN_VAULT_LICENSE=your-value -- uvx hebbian-vault

    Replace “your-value” with your key before pressing Enter

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Type /mcp in Claude Code

    You should see Hebbian Vault listed as connected

  6. Try it

    Use Hebbian Vault and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using Hebbian Vault or shows a Hebbian Vault tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a Hebbian Vault key (sign up on the maker’s site, may cost money) · Install Python (uv) on your computer first (one time)

  1. Install Python (uv)

    One time only; it works for every server that needs Python (uv)

    Open the Python (uv) download page ↗

  2. Sign up and create a Hebbian Vault key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    How to get a key is in the maker’s README below

  3. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  4. Fill in your key

    In the Hebbian Vault settings, HEBBIAN_VAULT_LICENSE is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Open the AI chat in Cursor in Agent mode

  6. Try it

    Use Hebbian Vault and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using Hebbian Vault or shows a Hebbian Vault tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a Hebbian Vault key (sign up on the maker’s site, may cost money) · Install Python (uv) on your computer first (one time)

  1. Install Python (uv)

    One time only; it works for every server that needs Python (uv)

    Open the Python (uv) download page ↗

  2. Sign up and create a Hebbian Vault key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    How to get a key is in the maker’s README below

  3. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  4. Fill in your key

    In the Hebbian Vault settings, HEBBIAN_VAULT_LICENSE is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Open the AI chat in VS Code in Agent mode

  6. Try it

    Use Hebbian Vault and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using Hebbian Vault or shows a Hebbian Vault tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Hebbian Vault💬 Discussion →
For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add hebbian-vault --env HEBBIAN_VAULT_LICENSE=your-value -- uvx hebbian-vault

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "hebbian-vault": {
      "command": "uvx",
      "args": [
        "hebbian-vault"
      ],
      "env": {
        "HEBBIAN_VAULT_LICENSE": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "hebbian-vault": {
      "command": "uvx",
      "args": [
        "hebbian-vault"
      ],
      "env": {
        "HEBBIAN_VAULT_LICENSE": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "hebbian-vault": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "hebbian-vault"
      ],
      "env": {
        "HEBBIAN_VAULT_LICENSE": "your-value"
      }
    }
  }
}

Values you fill in

  • HEBBIAN_VAULT_LICENSE secret env
    Pro license JWT (optional). Unlocks --inline-tracking and other premium features. See the README for details.

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

At a glance

Downloads per weeki
15/wk
Licencei
No licence stated
Connection
Runs on your computer
Latest versioni
0.2.0
Published to registryi
Apr 18, 2026
Code last changedi
Apr 18, 2026
Maker
onetrueclaude-creator
Packages
pypi: hebbian-vault
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

Related guides

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 11, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account onetrueclaude-creator, which owns the repo

  • ! Caution

    Still maintained

    Code last changed 7 months ago, more than 6 months ago

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

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User reviews

No reviews yet

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Compared with others in Docs, sheets & office worki

  • More stars than 0% of the other 3731 servers in this category
  • Published to the registry more recently than 7% of the other 3731 servers in this category
  • Basic checks equal to or better than 13% of the other 3731 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 Hebbian Vault safe?

It passed 1 of 2 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?

You need to fill in: HEBBIAN_VAULT_LICENSE

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed 7 months ago, and the latest version (0.2.0) reached the registry 7 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Puter MCP, XcodeBuildMCP, XcodeBuildMCP

Alternatives

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

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

Puter MCP

Puter MCP enables AI tools to interact with Puter: manage files, websites, workers, and more

by HeyPuterWidely used★ 44.1KUpdated 5 months ago

Runs in the cloud✓ puter.com

XcodeBuildMCP

XcodeBuildMCP provides tools for Xcode project management, simulator management, and app utilities.

by getsentryWidely used↓ 130.5K/wk★ 6.6KUpdated 4 months ago

Runs on your computer✓ xcodebuildmcp.com

XcodeBuildMCP

XcodeBuildMCP provides tools for Xcode project management, simulator management, and app utilities.

by cameroncookeWidely used↓ 130.5K/wk★ 6.6KUpdated 14 months ago

Runs on your computer

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.

hebbian-vault

MCP server for intelligent, use-adaptive Obsidian vault search.

Your vault remembers what matters. Files you use strengthen. Unused files fade. Hub pages surface first. Search gets better over time.

What it does

Unlike standard Obsidian search (keyword matching), hebbian-vault uses four signals merged via Reciprocal Rank Fusion:

  • BM25 -- keyword relevance (like standard search, but ranked)
  • Personalized PageRank -- graph centrality biased toward your query (hub pages surface first)
  • Hebbian usage -- files you actually use rank higher, with recency decay
  • RRF merge -- combines all signals without weight tuning

Works with any Obsidian vault. No cloud. No Obsidian running required. Direct filesystem access.

Install

pip install hebbian-vault

Usage

Claude Code
claude mcp add hebbian-vault -- hebbian-vault --vault ~/my-vault
Claude Desktop

Add to claude_desktop_config.json:

{

"mcpServers": { "hebbian-vault": { "command": "uvx", "args": ["hebbian-vault", "--vault", "/path/to/vault"] } } }

Direct
hebbian-vault --vault ~/my-vault

MCP Tools

ToolDescription
configure_vaultPoint the server at a vault at runtime (if not set via --vault)
vault_searchHybrid ranked search (BM25 + PageRank + Hebbian)
vault_readRead a note with frontmatter, links, and Hebbian metadata
vault_neighborsFind connected notes by wikilinks (1-hop or 2-hop)
vault_hotTop-N most-used files by Hebbian score
vault_statsVault analytics (files, links, orphans, hubs)
vault_healthStructural integrity check (broken links, orphans)

How Hebbian learning works

Every time vault_search or vault_read returns a file, that file's retrieval count increments. Files accessed recently get a recency boost. Files untouched for weeks decay. Over time, the vault develops a "heat signature" -- frequently useful files strengthen, rarely useful files fade.

This is Hebbian learning applied to information retrieval: "neurons that fire together wire together." Your vault adapts to how you actually use it.

Storage

By default, tracking data is stored in a .hebbian/ sidecar directory inside your vault. Your markdown files are not modified.

Pro users can enable --inline-tracking to write retrieval_count directly into YAML frontmatter (visible natively in Obsidian, queryable via Dataview).

Pro tier

The free tier is fully featured for most use. Pro unlocks convenience features for power users:

  • --inline-tracking — write retrieval counts into note frontmatter instead of sidecar files
  • Priority email support from the developer
  • Future premium features ship Pro-unlocked by default

License activation — any one of these works:

# 1. Environment variable (good for shell profiles)

export HEBBIAN_VAULT_LICENSE="eyJhbGc..."

2. CLI flag (good for one-off testing)

hebbian-vault --license-key "eyJhbGc..." --vault ~/my-vault

3. Config file (good for permanent install)

echo "eyJhbGc..." > ~/.hebbian-vault/license.jwt

Licenses are verified fully offline — no phone-home, no activation server. Get a license: [coming soon — Dodo Payments storefront in verification].

Options

hebbian-vault --vault PATH          Path to Obsidian vault

--inline-tracking [Pro] Write tracking to file frontmatter --license-key KEY Pro license JWT (also reads HEBBIAN_VAULT_LICENSE env) --transport TYPE stdio (default) or streamable-http --port PORT Port for HTTP transport (default: 8000)

Requirements

  • Python 3.10+
  • An Obsidian vault (any size, wikilinks recommended for graph features)

License

MIT