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Hebbian Vault MCP Server

local only

Hebbian Vault runs on your own machine — the client starts it, so there is no endpoint to ping. 55 installs a week from pypi. Last commit 18 Apr 2026.

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

Installs per day peak 16 · avg 8 · -5% w/w
a month agotoday
55
Installs / week
pypi · hebbian-vault
0
Stars
0 open issues
18 Apr 2026
Last commit
from GitHub
MIT
License
Python

What the code does

We read the source, 4 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

                if insert > 0:
                    content = content[:insert] + f"\nretrieval_count: {rc}" + content[insert:]
        full_path = os.path.join(self.config.vault_path, rel_path)

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add hebbian-vault -- uvx hebbian-vault
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "hebbian-vault": {
      "command": "uvx",
      "args": [
        "hebbian-vault"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.hebbian-vault]
command = "uvx"
args = ["hebbian-vault"]
.cursor/mcp.json
{
  "mcpServers": {
    "hebbian-vault": {
      "command": "uvx",
      "args": [
        "hebbian-vault"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "hebbian-vault": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "hebbian-vault"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: HEBBIAN_VAULT_LICENSE (Pro license JWT (optional). Unlocks --inline-tracking and other premium features. See the README for details).

Alternatives to Hebbian Vault

same job, measured the same way
Obsidian Hybrid Search
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Search Obsidian vaults with hybrid full-text, fuzzy, semantic, and graph retrieval.

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Obsidian Brain
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Obsidian MCP server: semantic search, knowledge graph, and vault editing. No plugin required.

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Vault Cortex
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Standalone MCP server for Obsidian vaults — hybrid search, notes & files, memory, tasks, OAuth 2.1

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Enquire MCP
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Long-term memory for AI agents — your Obsidian vault as searchable persistent memory.

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Obsidian Semantic Search
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Read-only semantic search MCP server for Obsidian vaults using local Ollama embeddings.

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Freshvault
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Local semantic search over your Obsidian vault - always fresh, never reindex.

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Smart Connections
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MCP server for Obsidian Smart Connections. Semantic search using your vault's embeddings.

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Enzyme
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Semantic search and pattern discovery for Obsidian and markdown vaults.

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Hebbian Vault — questions

Answers built from our own checks of this server.

Why is there no uptime for Hebbian Vault?
Hebbian Vault runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package hebbian-vault was installed 55 times last week.
How do I connect Hebbian Vault?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls hebbian-vault straight from pypi; nothing to host, nothing to sign up for.
How many people use Hebbian Vault?
The pypi package hebbian-vault was installed 55 times in the last week. Week over week that is -5%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Hebbian Vault open source?
Yes — it is published under the MIT licence, written in Python and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.