Posokanei

Unofficial read-only MCP server for supermarket product and price data from PosoKanei.

This server lets MCP-compatible clients ask questions such as:

• Search for supermarket products by name.
• Look up a product by barcode.
• Compare current retailer prices for a product.
• Compare a small shopping basket across retailers.
• Browse product categories and retailers.

Status

Early open-source version. The implementation uses public, undocumented endpoints used by the PosoKanei web app. Keep requests modest and cache-friendly.

This project is not affiliated with, endorsed by, or operated by PosoKanei, gov.gr, or any Greek public authority.

Installation

Add it to your MCP client configuration:

{
  "mcpServers": {
    "posokanei": {
      "command": "npx",
      "args": ["-y", "posokanei-mcp"]
    }
  }
}

For local development:

{
  "mcpServers": {
    "posokanei": {
      "command": "node",
      "args": ["/absolute/path/to/posokanei-mcp/dist/index.js"]
    }
  }
}

Build first:

npm install
npm run build

Tools

Configuration

Optional environment variables:

Development

npm install
npm run typecheck
npm test

The test suite mocks the PosoKanei API. It should not require live network access.

License

MIT