Perseus Vault vs Vestige

In-depth architectural comparison of the Perseus Vault and Vestige 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 Perseus Vault 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).
• You have access to required keys: PERSEUS_VAULT_ENCRYPTION_KEY.
• Primary tools included: Single Rust binary with embedded SQLite, AES-256-GCM encryption at rest, Hybrid BM25 full-text and dense vector search.

Explore Perseus Vault Details

Choose Vestige 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: Local SQLite storage with no cloud dependency, FSRS-6 spaced repetition scheduling for memory fading, Contradiction detection with claim_contradicts_memory status.

Feature & Specification Comparison

Specification	Perseus Vault Perseus-Computing-LLC Knowledge & Memory	Vestige samvallad33 Knowledge & Memory
Summary	Local-first, MCP-native persistent memory for AI agents — a single Rust binary with embedded SQLite, hybrid FTS5 + dense-vector search, and optional AES-256-GCM encryption. Fully offline, no cloud.	Local-first cognitive memory for AI agents. FSRS-6 scheduling, smart ingest, SQLite storage, portable sync, embedded dashboard, and optional Cognitive Sandwich hooks for Claude Code, Cursor, Codex, and other MCP clients.
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": {
    "perseus-computing-llc-perseus-vault": {
      "command": "npx",
      "args": [
        "-y",
        "perseus-computing-llc-perseus-vault"
      ],
      "env": {
        "PERSEUS_VAULT_ENCRYPTION_KEY": "YOUR_PERSEUS_VAULT_ENCRYPTION_KEY_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "samvallad33-vestige": {
      "command": "npx",
      "args": [
        "-y",
        "samvallad33-vestige"
      ]
    }
  }
}

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