What is the key difference between Mnemo MCP and Perseus Vault?

Mnemo MCP belongs to the Knowledge & Memory category with local stdio execution, while Perseus Vault belongs to the Knowledge & Memory category with local stdio execution.

How do I install Mnemo MCP or Perseus Vault in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Mnemo MCP and Perseus Vault free or paid?

Mnemo MCP operates under a Free / Open Source model (No auth required). Perseus Vault operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Mnemo MCP lists 3 tools with 2 views and 11 GitHub stars. Perseus Vault lists 6 tools with 16 views and 72 GitHub stars.

Can I use both Mnemo MCP and Perseus Vault together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Mnemo MCP vs Perseus Vault

In-depth architectural comparison of the Mnemo MCP and Perseus Vault MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Mnemo MCP

Knowledge & Memory · Local stdio

Quality: 57/100 (Good) | Auth: No auth required

Perseus Vault

Knowledge & Memory · Local stdio

Quality: 35/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Mnemo MCP if you need specialized Knowledge & Memory tools running via a local process. Choose Perseus Vault if your workspace requires Knowledge & Memory integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Mnemo MCP when:

You need dedicated capabilities in the Knowledge & Memory domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: MNEMO_MCP_RCLONE_REMOTE, MNEMO_MCP_SYNC_PASSPORT_KEY, MNEMO_MCP_DB_PATH, MNEMO_MCP_LOG_LEVEL.
Primary tools included: config, help, config__open_relay.

Explore Mnemo MCP Details

Choose Perseus Vault when:

You need dedicated capabilities in the Knowledge & Memory domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: Embedded SQLite storage, BM25 and dense-vector hybrid recall, Bi-temporal history and lifecycle management.

Feature & Specification Comparison

Specification	Mnemo MCP n24q02m Knowledge & Memory	Perseus Vault Perseus-Computing-LLC Knowledge & Memory
Summary	Persistent AI memory with SQLite hybrid search (FTS5 + semantic). Built-in Qwen3 embedding, rclone sync across machines. Zero config, no cloud, no limits.	Local-first, MCP-native persistent memory for AI agents — a single Rust binary with embedded SQLite, hybrid FTS5 + dense-vector search, and optional AES-256-GCM encryption. Fully offline, no cloud.
Category & Scope

Tools & Capabilities Breakdown

Mnemo MCP Tools (3)

config

Server status, trigger sync, update settings, pre-download embedding model, authenticate sync provider, manage HTTP setup form lifecycle, passport export/import

help

Full documentation for any tool

config__open_relay

Open the zero-config relay setup form (registered via mcp-core)

Perseus Vault Tools (6)

Embedded SQLite storage

BM25 and dense-vector hybrid recall

Bi-temporal history and lifecycle management

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Mnemo MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "n24q02m-mnemo-mcp": {
      "command": "uvx",
      "args": [
        "invocation"
      ],
      "env": {
        "MNEMO_MCP_RCLONE_REMOTE": "YOUR_MNEMO_MCP_RCLONE_REMOTE_HERE",
        "MNEMO_MCP_SYNC_PASSPORT_KEY": "YOUR_MNEMO_MCP_SYNC_PASSPORT_KEY_HERE",
        "MNEMO_MCP_DB_PATH": "YOUR_MNEMO_MCP_DB_PATH_HERE",
        "MNEMO_MCP_LOG_LEVEL": "YOUR_MNEMO_MCP_LOG_LEVEL_HERE"
      }
    }
  }
}

Perseus Vault Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "perseus-computing-llc-perseus-vault": {
      "command": "npx",
      "args": [
        "-y",
        "perseus-computing-llc-perseus-vault"
      ]
    }
  }
}

Frequently Asked Questions

Mnemo MCP is categorized under Knowledge & Memory and uses a local stdio subprocess. In contrast, Perseus Vault belongs to Knowledge & Memory using local stdio subprocess. Select Mnemo MCP when you need capabilities focused on knowledge & memory and Perseus Vault when you require tools for knowledge & memory.

More alternatives to Mnemo MCP More alternatives to Perseus Vault Knowledge & Memory category hub