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  1. Home
  2. Browse
  3. Deja Vu
  4. vs Witness
Side-by-Side Model Context Protocol Comparison

Deja Vu vs Witness

In-depth architectural comparison of the Deja Vu and Witness 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

Deja Vu
Knowledge & Memory · Local stdio
Quality: 68/100 (Great) | Auth: No auth required
Witness
Knowledge & Memory · Local stdio
Quality: 35/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Deja Vu if you need specialized Knowledge & Memory tools running via a local process. Choose Witness 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?

Deja Vu logo

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
Witness logo

Choose Witness 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 Witness Details

Feature & Specification Comparison

Specification
Deja Vu logo
Deja Vu
vshulcz
Knowledge & Memory
Witness logo
Witness
Knowledge & Memory
SummaryLocal 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.Second brain for Claude Code & OpenCode: distills how your patterns and knowledge evolve over time.
Category & ScopeKnowledge & Memory

Tools & Capabilities Breakdown

Deja Vu Tools (1)

deja
Depends on the mode, below.

Witness Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

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).

Deja Vu Configuration
mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "vshulcz-deja-vu": {
      "command": "npx",
      "args": [
        "-y",
        "@vshulcz/deja-vu"
      ]
    }
  }
}
Witness Configuration
mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "witness": {
      "command": "npx",
      "args": [
        "-y",
        "witness"
      ]
    }
  }
}

Frequently Asked Questions

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

More alternatives to Deja VuMore alternatives to WitnessKnowledge & Memory category hub

Related MCP Server Comparisons

Popular comparisons with Deja Vu

  • Moxie Docs MCP logoDeja Vu vs Moxie Docs MCP
  • Scrivener MCP logoDeja Vu vs Scrivener MCP
  • Callimachus logoDeja Vu vs Callimachus
  • YourMemory logoDeja Vu vs YourMemory

Popular comparisons with Witness

Knowledge & Memory
Quality signal68/100 (Great)35/100 (Fair)
Transport ProtocolLocal Subprocess (stdio)Local Subprocess (stdio)
Auth RequirementNo auth requiredNo auth required
Pricing ModelFree / Open SourceFree / Open Source
Required Env VarsNone requiredNone required
Compatible Clients
Claude DesktopCursorWindsurfClineVS Code
Claude DesktopCursorWindsurfClineVS Code
Install path signalnpx · highnpx · low
Engagement & Health 2 views 0 copies 0 upvotes 929 stars 0 views 0 copies 0 upvotes 9 stars
Verified / OfficialCommunity ListingCommunity Listing
Open full listingView Deja Vu ListingView Witness Listing
Moxie Docs MCP logo
Witness vs Moxie Docs MCP
  • Scrivener MCP logoWitness vs Scrivener MCP
  • Codebase Memory MCP logoWitness vs Codebase Memory MCP
  • Context7 logoWitness vs Context7