Perenna vs Plur

In-depth architectural comparison of the Perenna and Plur 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 Perenna 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: VEXOR_CONFIG_JSON, VEXOR_API_KEY.
• Primary tools included: Separate MCP tools for reading, writing, and deleting memories, Git-backed Markdown storage, Rebuildable Vexor retrieval index.

Explore Perenna Details

Choose Plur 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: plur_learn, plur_learn_batch, plur_recall.

Explore Plur Details

Feature & Specification Comparison

Specification	Perenna Knowledge & Memory	Plur Knowledge & Memory
Summary	A lightweight, Git-backed permanent memory for AI agents.	Open, local-first engram memory for AI agents: read, correct, delete; shared over MCP.
Category & Scope	Knowledge & Memory	Knowledge & Memory
Quality signal

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": {
    "perenna": {
      "command": "uvx",
      "args": [
        "vexor"
      ],
      "env": {
        "VEXOR_CONFIG_JSON": "YOUR_VEXOR_CONFIG_JSON_HERE",
        "VEXOR_API_KEY": "YOUR_VEXOR_API_KEY_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "plur": {
      "command": "uvx",
      "args": [
        "plur-hermes"
      ]
    }
  }
}

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