ContextBridge vs Iai Personal Memory Engine

In-depth architectural comparison of the ContextBridge and Iai Personal Memory Engine 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 ContextBridge 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: memory_write, memory_batch_write, memory_search.

Explore ContextBridge Details

Choose Iai Personal Memory Engine 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: memory_recall, memory_temporal_recall, memory_recall_structural.

Explore Iai Personal Memory Engine Details

Feature & Specification Comparison

Specification	ContextBridge Knowledge & Memory	Iai Personal Memory Engine CodeAbra Knowledge & Memory
Summary	MCP memory server for AI coding assistants. Windows Service, ONNX embeddings, SQLite vector search.	Local memory daemon for any MCP-over-stdio client with three-tier storage (episodic/semantic/procedural). Own SQLite + hnswlib store (Hippo) with bge-small-en-v1.5, MIT-licensed community-detection reranking (MOSAIC), and sleep-cycle consolidation. AES-256-GCM encrypted at rest, no telemetry. Verbatim recall >=99% and post-contradiction Rescue@10 1.000 at honest scale. Ambient capture via shell hooks. Windows support in beta.
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": {
    "contextbridge": {
      "command": "npx",
      "args": [
        "-y",
        "contextbridge"
      ]
    }
  }
}

{
  "mcpServers": {
    "codeabra-iai-personal-memory-engine": {
      "command": "uvx",
      "args": [
        "iai-pme"
      ]
    }
  }
}

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