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ChatAtlas Local MCP Server

local only

ChatAtlas Local runs on your own machine — the client starts it, so there is no endpoint to ping. 730 installs a week from npm. Last commit 30 Oct 2026.

Search and read your saved ChatGPT and Claude chats, kept on your own computer.

Installs per day peak 562 · avg 22
a month agotoday
730
Installs / week
npm · chatatlas-local
0
Stars
0 open issues
30 Oct 2026
Last commit
4 releases in 90 days
MIT
License
JavaScript

What the code does

We read the source, 2 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

    const child = spawn(cmd, args, { stdio: 'ignore', detached: true, windowsHide: true });

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

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 chatatlas-local -- npx -y chatatlas-local
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "chatatlas-local": {
      "command": "npx",
      "args": [
        "-y",
        "chatatlas-local"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.chatatlas-local]
command = "npx"
args = ["-y", "chatatlas-local"]
.cursor/mcp.json
{
  "mcpServers": {
    "chatatlas-local": {
      "command": "npx",
      "args": [
        "-y",
        "chatatlas-local"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "chatatlas-local": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "chatatlas-local"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: CHATATLAS_LOCAL_DB (Where to keep the archive file (default ~/.chatatlas-local/chatatlas.db)), CHATATLAS_LOCAL_INBOX (A folder to watch: ChatGPT or Claude export .zip files saved there come in by themselves).

Alternatives to ChatAtlas Local

same job, measured the same way
H
Hubort
by fazy221

Search your Claude, ChatGPT, Gemini and Grok chats from every account. Read-only, local.

local only
Shellway
by getshellway

Work on your own computers from Claude or ChatGPT: run commands, edit and search files.

answering
Prompt Saver
by promptsaver

Your versioned prompt library: search, read, save and version prompts from Claude Code.

answering
Notesbridge
by isaiahdupree

Search, read, and write your Apple Notes from ChatGPT/Claude via a local Mac agent + MCP relay.

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Whatsapp
by corapilot

Let Claude or ChatGPT search, read and send your WhatsApp messages over MCP. OAuth sign-in.

answering
Filamental
by scottnine

Search, read and build your Filamental knowledge graph. Local-first: notes stay on your computer.

530 installs/wk local only
Chronicle MCP
by leviathan0x0

Local, private AI chat history search & memory: BM25 over your Cursor, Claude and ChatGPT chats.

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Sortio
by canonicalmg

Read-only search of your Sortio knowledge graph (files and entities) for Claude and ChatGPT.

answering

ChatAtlas Local — questions

Answers built from our own checks of this server.

Why is there no uptime for ChatAtlas Local?
ChatAtlas Local 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 npm package chatatlas-local was installed 730 times last week.
How do I connect ChatAtlas Local?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls chatatlas-local straight from npm; nothing to host, nothing to sign up for.
How many people use ChatAtlas Local?
The npm package chatatlas-local was installed 730 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is ChatAtlas Local open source?
Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.