Installation

Install lto using your preferred package manager:

# npm
npm install lto

# yarn
yarn add lto

# pnpm
pnpm install lto

Usage

Command Line

Generate lotto numbers directly from the command line:

npx lto
# Output: 1 4 11 14 25 43

JavaScript/TypeScript

Import and use lto in your JavaScript or TypeScript projects:

const { MAX_NUMBER, MIN_NUMBER, create, random } = require('lto');

// Constants
console.log(MAX_NUMBER, MIN_NUMBER); // 45 1

// Generate a single random number between 1 and 45
console.log(random(MIN_NUMBER, MAX_NUMBER)); // 8

// Generate 6 unique lotto numbers (sorted)
console.log(create()); // [ 2, 4, 10, 16, 19, 30 ]

Available exports:

• MAX_NUMBER: Maximum lotto number (45)
• MIN_NUMBER: Minimum lotto number (1)
• create(): Returns an array of 6 unique, sorted numbers from 1 to 45
• random(min: number, max: number): Returns a single random number between min and max (inclusive)

MCP Server (Model Context Protocol)

lto can be used as an MCP server, allowing AI assistants and other MCP-compatible tools to generate lotto numbers and check lotto results, as well as generate pension lottery numbers.

Setup

Add the following configuration to your MCP client settings file (e.g., ~/.cursor/mcp.json or .cursor/mcp.json):

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

Available Tools

generate_lotto_numbers

Generates 6 random, non-duplicate lotto numbers from 1 to 45.

• Returns: A space-separated string of 6 sorted numbers
• Example: "2 9 10 27 37 44"

check_lotto_numbers

Checks if your lotto numbers have won any prizes in the past year's draw results.

• Parameters:
  • numbers (required): An array of 6 non-duplicate numbers from 1 to 45
• Returns: Prize information if won, or a message indicating no wins
• Prize tiers:
  • 1st place: 6 numbers match (probability: 1/8,145,060)
  • 2nd place: 5 numbers match + bonus number match (probability: 1/1,357,510)
  • 3st place: 5 numbers match (probability: 1/35,724)
  • 4th place: 4 numbers match (probability: 1/733)
  • 5th place: 3 numbers match (probability: 1/45)

generate_pension_lottery_numbers

Generates Pension Lottery 720+ numbers. Generates 6 random pension lottery numbers from 0 to 9.

• Returns: A space-separated string of 6 digits (e.g., "1 2 3 4 5 6")