Quick Start

Deploy your first x402-enabled service or start consuming paid APIs in under 5 minutes.

Choose Your Path

Building a service to monetize? Or consuming existing services? Pick your path and get started. Nova provides the complete infrastructure to make x402 usable at scale.

Use our Service Hub to discover services, Nova Native Agent for autonomous workflows, or x402 Lending to enable agents with capital access. All utilities work together to create a complete machine economy.

Service Providers

Launch an API that accepts x402 micropayments:

Select Framework

→ Express.js / Node.js → Python (FastAPI/Flask)

Install Package

Add the x402 middleware to your project via npm or pip

Configure Middleware

Set your payment address and facilitator endpoint in the middleware

Deploy

Push to production and start accepting micropayments instantly

Consumers

Start calling x402-protected APIs:

Discover Services

Browse the marketplace to find AI services, data APIs, and specialized tools

Test Free

Use built-in testing interfaces to validate service behavior before spending

Connect Wallet

Link your MetaMask, Phantom, or preferred wallet for transactions

Install Client

Add the x402 client library to handle payments automatically

Start Transacting

Make API calls with automatic payment handling - just use standard HTTP methods

Quick Example

Server (Express.js)

import { x402Middleware } from '@payai/x402-server';

app.use('/api/*', x402Middleware({
  payTo: "0x742d35Cc...",
  network: "base"
}));

app.get('/api/data', (req, res) => {
  res.json({ result: "paid data" });
});

Client (Node.js)

import { X402Client } from '@payai/x402-client';

const client = new X402Client({
  signer: wallet,
  network: "base"
});

const data = await client.get('https://api.example.com/api/data');
console.log(data);

Nova Utilities

Enhance your x402 integration with Nova's utilities:

Service Hub

Browse and discover x402 services. Test services free, validate integration, and integrate with structured output validation.

Explore Service Hub →

Integration Layer

Nova Native Agent

Use autonomous agents to run workflows. Agents evaluate cost, handle fallbacks, and route through the lending layer.

Learn About Agent →

x402 Lending

Enable agents to access paid services autonomously. Stake $NOVA to participate and earn rewards from agent activity.

About Lending →

Dive Deeper

Explore comprehensive guides, API references, and integration examples for production deployments.

Full Documentation