Nautilus Compass vs Celiums Memory

A side-by-side look at the Nautilus Compass and Celiums Memory MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Nautilus Compass logoNautilus CompassKnowledge & Memory · Local subprocess (stdio)Drift-aware cross-agent memory · MCP/A2A · LongMemEval-S 56.6% · 1/15 Zep cost47FairAuth: not declaredCeliums Memory logoCeliums MemoryKnowledge & Memory · Local subprocess (stdio)Cognitive memory engine with 5,100+ knowledge modules, circadian rhythm awareness, and emotional state tracking (PAD model). Hybrid search (PostgreSQL + Qdrant vectors + Valkey cache), per-user memory isolation, and multi-protocol support (MCP, REST, OpenAI, LangChain, A2A). npx @celiums/memory Website56GoodAuth: api key required

Verdict: choose Nautilus Compass for knowledge & memory work as a local process; choose Celiums Memory for knowledge & memory as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Nautilus Compass logoChoose Nautilus Compass when

  • You need dedicated capabilities in the Knowledge & Memory domain.
  • You prefer a local stdio subprocess transport.
Explore Nautilus Compass

Celiums Memory logoChoose Celiums Memory when

  • You need dedicated capabilities in the Knowledge & Memory domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: API key required.
  • You have the keys it needs: SQLITE_PATH, DATABASE_URL, QDRANT_URL, VALKEY_URL, CELIUMS_API_KEY, PORT, CELIUMS_LLM_API_KEY, CELIUMS_LLM_BASE_URL.
Explore Celiums Memory

Feature & specification comparison

Rows where the two servers differ are marked.

SpecNautilus Compass logoNautilus CompassCeliums Memory logoCeliums Memory
CategoryKnowledge & MemoryKnowledge & Memory
Quality signal47/100 · Fair56/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredAPI key required
PricingNot declaredFree
Required env varsNone listedSQLITE_PATHDATABASE_URLQDRANT_URLVALKEY_URLCELIUMS_API_KEYPORTCELIUMS_LLM_API_KEYCELIUMS_LLM_BASE_URL
Verified ownerCommunity listingCommunity listing
GitHub stars1,25623
Directory activity 1 views 0 installs 0 upvotes 3 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

Nautilus Compass tools

No tool names declared yet. Check the project README from the listing page.

Celiums Memory tools

No tool names declared yet. Check the project README from the listing page.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Nautilus Compass

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "nautilus-compass": {
      "command": "uvx",
      "args": [
        "nautilus-compass"
      ]
    }
  }
}

Celiums Memory

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "celiums-celiums-memory": {
      "command": "npx",
      "args": [
        "-y",
        "@celiums/memory"
      ],
      "env": {
        "SQLITE_PATH": "YOUR_SQLITE_PATH_HERE",
        "DATABASE_URL": "YOUR_DATABASE_URL_HERE",
        "QDRANT_URL": "YOUR_QDRANT_URL_HERE",
        "VALKEY_URL": "YOUR_VALKEY_URL_HERE",
        "CELIUMS_API_KEY": "YOUR_CELIUMS_API_KEY_HERE",
        "PORT": "YOUR_PORT_HERE",
        "CELIUMS_LLM_API_KEY": "YOUR_CELIUMS_LLM_API_KEY_HERE",
        "CELIUMS_LLM_BASE_URL": "YOUR_CELIUMS_LLM_BASE_URL_HERE"
      }
    }
  }
}

Frequently asked questions

Nautilus Compass is categorized under Knowledge & Memory and uses a local stdio subprocess. Celiums Memory belongs to Knowledge & Memory and uses a local stdio subprocess. Pick Nautilus Compass for knowledge & memory work and Celiums Memory for knowledge & memory.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Nautilus Compass has no declared pricing — check the project's own site. Celiums Memory is listed as free. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add nautilus-compass and celiums-celiums-memory as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Nautilus Compass has a quality signal of 47/100 (Fair) with 1 views, 0 installs and 1,256 GitHub stars. Celiums Memory has 56/100 (Good) with 3 views, 0 installs and 23 GitHub stars.