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This guide will help you set up and initialize the Nevermined Payment Libraries to start monetizing your AI services.

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Prerequisites

Before you begin, make sure you have:
1

Development Environment

  • Node.js 16+ and npm/yarn (for TypeScript)
  • Python 3.8+ (for Python)
  • A code editor (VS Code recommended)
2

Nevermined API Key

Get your API key from the Nevermined App
3

Test Tokens (Optional)

Some test tokens for testing (you can get some USDC from here)

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Installation

npm install @nevermined-io/payments
# or
yarn add @nevermined-io/payments

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Getting Your API Key

Follow the Get Your API Key guide to create your Nevermined API key, then store it securely as an environment variable: 
export NVM_API_KEY="sandbox:your-api-key-here"
Never expose your API key in client-side code or commit it to version control. Always use environment variables.

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Initialize the Payments Libraries

import { Payments } from '@nevermined-io/payments'

const payments = Payments.getInstance({
  nvmApiKey: process.env.NVM_API_KEY,
  environment: 'sandbox' // or 'live'
})

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Environment Configuration

Choose the appropriate environment for your use case:
  • Use case: Development and testing
  • Payments: Test fiat and tokens (free)
  • Environment: 'sandbox'
  • Network: Base Sepolia testnet
  • Use case: Live applications
  • Payments: Fiat (via Stripe) and any ERC-20 tokens
  • Environment: 'live'
  • Network: Base

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Common Issues

Make sure your API key is correctly set in your environment variables and has the proper permissions.
Check that you’re using the correct environment (‘sandbox’ or ‘live’) and that your network connection is stable.
If you encounter any issues, check our Frequently Asked Questions or reach out to our community on Discord.