listonic-mcp

An MCP (Model Context Protocol) server that gives AI agents — Claude, Cursor, or any MCP client — hands on your real Listonic grocery list. Read it, add to it, check things off, across every device Listonic syncs to.

The obvious win: meal planning that ends in a shopping list. Ask your agent to plan the week's dinners, and the missing ingredients land straight on the list on your phone — quantities and all. Or paste a recipe and say "add what I don't have": the server tells the agent which items are checked (already at home) and which aren't.

You:   plan me 3 cheap high-protein dinners and put the ingredients on my list
Agent: [reads your list — sees you already have rice, eggs, frozen spinach]
       [adds: 1 kg chicken thighs, 400 g lentils, greek yogurt ×2, ...]

Unofficial. Not affiliated with Listonic. Built on their web app's API (reverse-engineered — fully documented in API.md). It may break if Listonic changes their API.

Install

Requires Python 3.10+ and a Listonic account (free):

pip install listonic-mcp

Add to your agent

Point command at listonic-mcp and pass your Listonic login:

{
  "mcpServers": {
    "listonic": {
      "command": "listonic-mcp",
      "env": {
        "LISTONIC_EMAIL": "you@example.com",
        "LISTONIC_PASSWORD": "your-listonic-password"
      }
    }
  }
}

The same values can be passed as --email / --password args instead — whichever your client makes easier.

claude mcp add listonic -e LISTONIC_EMAIL=you@example.com -e LISTONIC_PASSWORD=your-password -- listonic-mcp

Then just ask:

What's on my grocery list? Check off the milk, I just bought it.

Launch params

Tools

Every tool takes an optional list_id, so multiple lists ("weekend BBQ", "pharmacy") work naturally.

Good to know

• Your password goes to Listonic only. The server logs in against api.listonic.com directly and talks to nothing else — no telemetry, nothing stored beyond an in-memory session token (auto-refreshed when it expires).
• The client id/secret in the source are Listonic's own web-app credentials, embedded in their public JS bundle and shared by every web user — they are not personal secrets.
• The full reverse-engineered API is documented in API.md — lists, items, categories, account endpoints — if you want to extend the server.

Make it yours

A single readable file with no framework magic. Fork it and edit anything — add price tracking, category sorting, a recipe parser. Run from source:

git clone https://github.com/ArturLys/listonic-mcp.git
cd listonic-mcp
pip install -e .
listonic-mcp --email you@example.com --password your-password

Credits

• Listonic — the shopping list app this talks to. Go pay them for premium if you live off it.

License

MIT