What is the key difference between FactMem and Dark Memory MCP?

FactMem belongs to the Databases category with local stdio execution, while Dark Memory MCP belongs to the Databases category with local stdio execution.

How do I install FactMem or Dark Memory 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 FactMem and Dark Memory MCP free or paid?

FactMem operates under a Free / Open Source model (No auth required). Dark Memory MCP operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

FactMem lists 10 tools with 0 views and 2 GitHub stars. Dark Memory MCP lists 0 tools with 2 views and 0 GitHub stars.

Can I use both FactMem and Dark Memory 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

FactMem vs Dark Memory MCP

In-depth architectural comparison of the FactMem and Dark Memory 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

FactMem

Databases · Local stdio

Quality: 53/100 (Good) | Auth: No auth required

Dark Memory MCP

Databases · Local stdio

Quality: 44/100 (Fair) | Auth: No auth required

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

Which MCP Server Should You Choose?

Choose FactMem when:

You need dedicated capabilities in the Databases domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: log_event, get_events, get_session_context.

Explore FactMem Details

Choose Dark Memory MCP when:

You need dedicated capabilities in the Databases domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Dark Memory MCP Details

Feature & Specification Comparison

Specification	F FactMem Databases	Dark Memory MCP Databases
Summary	A local memory engine. You own the SQLite file. Not Mem0's hosted OpenMemory MCP.	Persistent memory + vibe-loop engine for AI agents. Single Go binary, SQLite-backed, stdio MCP.
Category & Scope	Databases	Databases
Quality signal

Tools & Capabilities Breakdown

FactMem Tools (10)

log_event

Log conversation events (messages, artifacts).

get_events

Retrieve events from current or previous session.

get_session_context

Working briefing (the same markdown as `memory://briefing`) plus facts captured in this session. Call at the start of every conversation if the client does not load resources.

get_entity

Everything known about any named subject — person, organisation, project, place, product — and how it connects. When several rows share the name under different types, facts from all of them come back. Hyphens, underscores, and stray punctuation count as the same letters only when that does not joi…

get_context

Everything relevant to a topic (search + entity traversal)

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).

FactMem Configuration

mcpServers (Claude Desktop / Cursor)

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

Dark Memory MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "dark-memory-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@opitacode/dark-memory-mcp"
      ]
    }
  }
}

Frequently Asked Questions

FactMem is categorized under Databases and uses a local stdio subprocess. In contrast, Dark Memory MCP belongs to Databases using local stdio subprocess. Select FactMem when you need capabilities focused on databases and Dark Memory MCP when you require tools for databases.

More alternatives to FactMem More alternatives to Dark Memory MCP Databases category hub Canonical compare URL