@mintlayer/sdk NPM

Mintlayer Connect SDK

A lightweight JavaScript/TypeScript SDK to connect your dApp to the Mintlayer blockchain. It allows you to build and request to sign transactions using a compatible wallet like Mojito.

Features

🔐 Secure connection to Mintlayer wallets
📦 Transaction builder for all major transaction types
🧮 Type-safe interfaces (TypeScript support)
🔄 UTXO-based transaction handling
🪙 Token minting, burning, and NFT issuance

Installation

npm install @mintlayer/sdk

or with yarn:

yarn add @mintlayer/sdk

Usage

1. Connect to wallet

import { Client } from '@mintlayer/sdk';

const client = new Client();
await client.connect(); // Opens wallet connection prompt

2. Send Transfer

await client.transfer({
  to: 'tmt1qxyz...',            // recipient address
  amount: 10,                   // in human-readable units
  token_id: 'tmltk1...',        // optional, omit for base coin
});

3. Build transaction manually

const tx = await client.buildTransaction({
  type: 'BurnToken',
  params: {
    amount: 10,
    token_id: 'tmltk1...',
    token_details: {
      authority: 'tmt1q...',
      number_of_decimals: 8,
      // ... other metadata
    },
  },
});