ReadmeDB vs Mem0: shared project brain vs vector memory

People search “Mem0 alternative” when they want agents to remember. Mem0 and ReadmeDB both help — for different jobs. Mem0 is a memory API (extract, embed, retrieve). ReadmeDB is durable markdown files coding agents share via MCP. Pick the job, then the tool.

Feature comparison

When Mem0 wins

You need automatic fact extraction from conversations, semantic retrieval (“what did this user prefer last month?”), multi-app personalization, or a production memory layer with graph features. That is Mem0’s lane — and it is strong there.

When ReadmeDB wins

You want agents to maintain a shared project brain: living decisions.md, open-tasks.md, preferences — readable by humans, writable by Cursor and Claude Code, versioned, and searchable as files. You are tired of re-explaining the repo when switching tools. That is not commodity chat memory; it is durable project truth.

Can you use both?

Yes. Mem0 for user/session personalization in a product agent; ReadmeDB for the engineering team’s cross-tool project files. They do not replace each other.

Try the project-brain path

{
  "mcpServers": {
    "readmedb": {
      "url": "https://app.readmedb.com/api/mcp",
      "headers": {
        "Authorization": "Bearer rdb_your_key"
      }
    }
  }
}