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Auditable memory (memory3l) MCP Server

local only

Auditable memory (memory3l) runs on your own machine — the client starts it, so there is no endpoint to ping.

Audited memory over MCP: an append-only fact ledger plus verifiable invariants I1-I5.

Installs / week
pypi · memory3l-mcp
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on GitHub
Last commit
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Nothing serious here today

Today is the operative word: we check Auditable memory (memory3l) every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add memory3l-mcp -- uvx memory3l-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "memory3l-mcp": {
      "args": [
        "memory3l-mcp"
      ],
      "command": "uvx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.memory3l-mcp]
command = "uvx"
args = ["memory3l-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "memory3l-mcp": {
      "args": [
        "memory3l-mcp"
      ],
      "command": "uvx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "memory3l-mcp": {
      "args": [
        "memory3l-mcp"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: MEMORY3L_ROOT (Override the location of the memory3l audit core (development against a source checkout).), MEMORY3L_DB (Path to the SQLite fact-ledger file to serve.), MEMORY3L_ALLOW_WRITE (Set to 1 to also expose the append_facts tool.). The author declared them in the registry entry; get the values from the project itself.

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Auditable memory (memory3l) — questions

Answers built from our own checks of this server.

Why is there no uptime for Auditable memory (memory3l)?
Auditable memory (memory3l) runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package memory3l-mcp.
How do I connect Auditable memory (memory3l)?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls memory3l-mcp straight from pypi; nothing to host, nothing to sign up for.