@validpay/node-sdk

@validpay/node-sdk

Official Node.js SDK for the ValidPay document verification API.

Overview

ValidPay provides cryptographic document verification infrastructure. This SDK enables issuers (banks, fintechs, check printers) to create tamper-proof verification intents and allows verifiers to authenticate documents in real-time.

Installation

npm install @validpay/node-sdk

Quick Start

import { ValidPayClient } from '@validpay/node-sdk';

const client = new ValidPayClient({
  apiKey: process.env.VALIDPAY_API_KEY,
});

// Create a verification intent
const intent = await client.createIntent({
  documentType: 'check',
  payload: { payee: 'Jane Doe', amount: 1500.00 },
});

// intent.id → embed in QR code
// intent.verifyUrl → direct verification link

Features

• Zero production dependencies (Node built-in crypto + native fetch)
• ESM-only, TypeScript-first
• AES-256-GCM encryption with client-side key generation
• XOR key splitting for multi-party verification
• Automatic retry with exponential backoff

Documentation

Full API documentation: https://validpay.io/docs

Status

Private Beta — Contact [e-mail] for API access.

License

MIT — Copyright (c) 2026 MiLu Technologies LLC