MCP Memento vs Polymnemo

In-depth architectural comparison of the MCP Memento and Polymnemo 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.

Which MCP Server Should You Choose?

Choose MCP Memento 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).

Explore MCP Memento Details

P

Choose Polymnemo 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).

Explore Polymnemo Details

Feature & Specification Comparison

Specification	MCP Memento Knowledge & Memory	P Polymnemo Knowledge & Memory
Summary	An MCP server that provides persistent memory and context management across sessions	Shared cross-LLM long-term memory over MCP: semantic recall, sessions, and media (pgvector).
Category & Scope	Knowledge & Memory	Knowledge & Memory
Quality signal

Tools & Capabilities Breakdown

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).

{
  "mcpServers": {
    "mcp-memento": {
      "command": "uvx",
      "args": [
        "mcp-memento"
      ]
    }
  }
}

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

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