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

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

How do I install Perseus Vault or Mnemo MCP 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 Perseus Vault and Mnemo MCP free or paid?

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

Which MCP server has more tools and community activity?

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

Can I use both Perseus Vault and Mnemo MCP 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

Perseus Vault vs Mnemo MCP

In-depth architectural comparison of the Perseus Vault and Mnemo MCP 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

Perseus Vault

Knowledge & Memory · Local stdio

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

Mnemo MCP

Knowledge & Memory · Local stdio

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

Verdict Summary: Choose Perseus Vault if you need specialized Knowledge & Memory tools running via a local process. Choose Mnemo MCP 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 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.

Explore Perseus Vault Details

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: .

Feature & Specification Comparison

Specification	Perseus Vault Perseus-Computing-LLC Knowledge & Memory	Mnemo MCP n24q02m Knowledge & Memory
Summary	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.	Persistent AI memory with SQLite hybrid search (FTS5 + semantic). Built-in Qwen3 embedding, rclone sync across machines. Zero config, no cloud, no limits.
Category & Scope

Tools & Capabilities Breakdown

Perseus Vault Tools (6)

Embedded SQLite storage

BM25 and dense-vector hybrid recall

Bi-temporal history and lifecycle management

AES-256-GCM encryption at rest

MCP over standard input and output

Optional client hooks and rules

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

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).

Perseus Vault Configuration

mcpServers (Claude Desktop / Cursor)

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

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"
      }
    }
  }
}

Frequently Asked Questions

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

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