Is the vault-knowledge MCP server free to use?

Yes. vault-knowledge is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Is the vault-knowledge MCP server free to use?

Yes. vault-knowledge is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Vault Knowledge

Read-only MCP over a vault's typed knowledge graph: concept search, contradictions, article fetch.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

Choose your client

claude_desktop_config.json

{
  "mcpServers": {
    "vault-knowledge": {
      "command": "npx",
      "args": [
        "-y",
        "vault-knowledge"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

vault-knowledge-mcp

A read-only MCP server that turns an Obsidian vault's typed knowledge graph into three tools any MCP client can call. Most knowledge tools can search. Few can tell you where your own notes disagree with each other. This one traverses a six-relation reasoning graph and surfaces the sharpest edge — contradicts. Local-first, stdio, no auth, no cloud, no native build.

The full reasoning lives in docs/EXPLANATION.md.

Tools

Tool	Returns
`search_concepts(query, limit=5)`	Semantically ranked concept/connection articles.
`find_contradictions(scope='all'\|'recent_30d')`	Active `contradicts` edges from the reasoning graph.
`get_article(slug)`	One article with frontmatter, body, and resolved wikilinks.

Try it — zero config

Ships with a synthetic espresso vault, so it works the moment it installs.

config.json

{
  "mcpServers": {
    "vault-knowledge": { "command": "npx", "args": ["-y", "@swins/vault-knowledge-mcp"] }
  }
}

Then ask: "find contradictions in the vault."

Point it at your own vault

config.json

{
  "mcpServers": {
    "vault-knowledge": {
      "command": "npx",
      "args": ["-y", "@swins/vault-knowledge-mcp"],
      "env": {
        "VAULT_DB": "/abs/path/.vault-index.db",
        "VAULT_ROOT": "/abs/path/vault"
      }
    }
  }
}

Only knowledge/{concepts,connections,qa} is ever readable. Scope is config-only — never a request parameter, so a client can't widen it.

Requirements

Node ≥ 22.5 (built-in node:sqlite). search_concepts downloads the nomic-embed-text-v1.5 model once on first run.

License

MIT.

Related MCP Servers

View all in Security View all alternatives

Frequently Asked Questions about Vault Knowledge

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "vault-knowledge": { "command": "npx", "args": ["-y", "vault-knowledge"] } }

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/vault-knowledge?style=directory)](https://allmcps.com/mcp/vault-knowledge)

HTML Embed

<a href="https://allmcps.com/mcp/vault-knowledge"><img src="https://allmcps.com/api/badge/vault-knowledge?style=directory" alt="Vault Knowledge on AllMCPs" /></a>

Technical Specs & Signals

CategorySecurity

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

★ Featured

AllMCPs Server

The official MCP server for AllMCPs.com - submit and manage tools directly from your AI. The open directory for MCP servers. Connect Claude, Cursor, Windsurf, and AI agents to databases, tools, files, and APIs. Explore 3,181+ servers. AllMCPs is the premier, open directory for discovering, evaluating, and installing Model Context Protocol (MCP) servers to equip AI agents and LLMs with real-world superpowers.

Explore Server →

Own this project?

This directory is pre-filled from public sources. Claim via GitHub README, site badge, or DNS TXT to get the verified badge and attach your website.

Free dofollow backlink: after claiming, verify your product site and place a dofollow AllMCPs badge — we recheck it stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 🔒 Security →Best MCP servers for Security →Alternatives to Vault Knowledge →Install in Claude Desktop Install in Cursor Install in VS Code

Vault Knowledge

Read-only MCP over a vault's typed knowledge graph: concept search, contradictions, article fetch.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

Choose your client

claude_desktop_config.json

{
  "mcpServers": {
    "vault-knowledge": {
      "command": "npx",
      "args": [
        "-y",
        "vault-knowledge"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

vault-knowledge-mcp

The full reasoning lives in docs/EXPLANATION.md.

Tools

Tool	Returns
`search_concepts(query, limit=5)`	Semantically ranked concept/connection articles.
`find_contradictions(scope='all'\|'recent_30d')`	Active `contradicts` edges from the reasoning graph.
`get_article(slug)`	One article with frontmatter, body, and resolved wikilinks.

Try it — zero config

Ships with a synthetic espresso vault, so it works the moment it installs.

config.json

{
  "mcpServers": {
    "vault-knowledge": { "command": "npx", "args": ["-y", "@swins/vault-knowledge-mcp"] }
  }
}

Then ask: "find contradictions in the vault."

Point it at your own vault

config.json

{
  "mcpServers": {
    "vault-knowledge": {
      "command": "npx",
      "args": ["-y", "@swins/vault-knowledge-mcp"],
      "env": {
        "VAULT_DB": "/abs/path/.vault-index.db",
        "VAULT_ROOT": "/abs/path/vault"
      }
    }
  }
}

Only knowledge/{concepts,connections,qa} is ever readable. Scope is config-only — never a request parameter, so a client can't widen it.

Requirements

Node ≥ 22.5 (built-in node:sqlite). search_concepts downloads the nomic-embed-text-v1.5 model once on first run.

License

MIT.

Related MCP Servers

View all in Security View all alternatives

Frequently Asked Questions about Vault Knowledge

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "vault-knowledge": { "command": "npx", "args": ["-y", "vault-knowledge"] } }

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/vault-knowledge?style=directory)](https://allmcps.com/mcp/vault-knowledge)

HTML Embed

<a href="https://allmcps.com/mcp/vault-knowledge"><img src="https://allmcps.com/api/badge/vault-knowledge?style=directory" alt="Vault Knowledge on AllMCPs" /></a>

Technical Specs & Signals

CategorySecurity

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

★ Featured

AllMCPs Server

Explore Server →

Own this project?

This directory is pre-filled from public sources. Claim via GitHub README, site badge, or DNS TXT to get the verified badge and attach your website.

Free dofollow backlink: after claiming, verify your product site and place a dofollow AllMCPs badge — we recheck it stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 🔒 Security →Best MCP servers for Security →Alternatives to Vault Knowledge →Install in Claude Desktop Install in Cursor Install in VS Code