Codebase Memory MCP vs M3 Memory

In-depth architectural comparison of the Codebase Memory MCP and M3 Memory 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 Codebase Memory MCP 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: index_repository, list_projects, delete_project.

Explore Codebase Memory MCP Details

M

Choose M3 Memory 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 M3 Memory Details

Feature & Specification Comparison

Specification	Codebase Memory MCP DeusData Knowledge & Memory	M M3 Memory Knowledge & Memory
Summary	Code-intelligence engine that indexes a repo into a persistent knowledge graph — functions, classes, call chains, HTTP routes, cross-service links. 159 languages via tree-sitter + Hybrid LSP, sub-ms structural queries, 99% fewer tokens than grep. Single static binary, zero dependencies, 100% local. npx codebase-memory-mcp	Local-first agentic memory — 100+ tools, 92% LongMemEval-S, hybrid search, GDPR, zero cloud.
Category & Scope	Knowledge & Memory

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": {
    "deusdata-codebase-memory-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "codebase-memory-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "m3-memory": {
      "command": "uvx",
      "args": [
        "m3-memory"
      ]
    }
  }
}

Related MCP Server Comparisons