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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. 38 installs a week from pypi. Last commit 18 Apr 2026.

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

Installs per day peak 40 · avg 9 · -64% w/w
a month agotoday
38
Installs / week
pypi · hebbian-vault
0
Stars
0 open issues
18 Apr 2026
Last commit
0 releases in 90 days
MIT
License
Python

What the code does

We read the source, 1 h ago · rules 3dff92dd89df

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": {
      "args": [
        "hebbian-vault"
      ],
      "command": "uvx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.hebbian-vault]
command = "uvx"
args = ["hebbian-vault"]
.cursor/mcp.json
{
  "mcpServers": {
    "hebbian-vault": {
      "args": [
        "hebbian-vault"
      ],
      "command": "uvx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "hebbian-vault": {
      "args": [
        "hebbian-vault"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: HEBBIAN_VAULT_LICENSE (Pro license JWT (optional). Unlocks --inline-tracking and other premium features. See the README for details.). The author declared them in the registry entry; get the values from the project itself.

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
by dalecb

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

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Freshvault
by kioko-lab

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

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Smart Connections
by gogogadgetbytes

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

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Enzyme
by byenzyme

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 38 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 with the file path 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 38 times in the last week. Week over week that is -64%. 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.