Sage vs Deja Vu

In-depth architectural comparison of the Sage and Deja Vu 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 Sage when:

• You need dedicated capabilities in the Knowledge & Memory domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: other (Free / Open Source).
• You have access to required keys: SAGE_PROVIDER, SAGE_PROJECT, SAGE_IDENTITY_PATH.
• Primary tools included: Consensus-validated persistent memory, Semantic recall with confidence scores, Durable agent-assigned tasks.

Explore Sage Details

Choose Deja Vu 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: deja.

Explore Deja Vu Details

Feature & Specification Comparison

Specification	Sage l33tdawg Knowledge & Memory	Deja Vu vshulcz Knowledge & Memory
Summary	Institutional memory for AI agents with real BFT consensus. 4 application validators vote on every memory before it's committed — no more storing garbage. 13 MCP tools, runs locally, works with any MCP-compatible model. Backed by 4 published research papers.	Local memory layer over the session histories coding agents already write (Claude Code, Codex CLI, opencode): lexical search, recall tools, session-start auto-recall, secret redaction at index time, cross-machine sync over SSH.
Category & Scope

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": {
    "l33tdawg-sage": {
      "command": "npx",
      "args": [
        "-y",
        "l33tdawg-sage"
      ],
      "env": {
        "SAGE_PROVIDER": "YOUR_SAGE_PROVIDER_HERE",
        "SAGE_PROJECT": "YOUR_SAGE_PROJECT_HERE",
        "SAGE_IDENTITY_PATH": "YOUR_SAGE_IDENTITY_PATH_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "vshulcz-deja-vu": {
      "command": "npx",
      "args": [
        "-y",
        "@vshulcz/deja-vu"
      ]
    }
  }
}

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