Client SDK Overview

npm install @shielded-x402/client

npm install @noir-lang/noir_js @aztec/bb.js

import { createShieldedFetch, ShieldedClientSDK, LocalNoteIndexer } from '@shielded-x402/client';

const sdk = new ShieldedClientSDK({
  endpoint: RELAYER_URL,
  signer: async (message) => account.signMessage({ message })
});

const shieldedFetch = createShieldedFetch({
  sdk,
  resolveContext: async () => {
    // Return note, witness, and nullifier secret
  }
});

const res = await shieldedFetch('https://api.example.com/paid/data');

import { MultiChainCreditClient } from '@shielded-x402/client';

const client = new MultiChainCreditClient({
  sequencerUrl: 'http://127.0.0.1:3200',
  relayerUrls: {
    'eip155:8453': 'http://127.0.0.1:3100',
    'solana:devnet': 'http://127.0.0.1:3101'
  }
});

const result = await client.pay({
  chainRef: 'eip155:8453',
  amountMicros: '1500000',
  merchant: {
    serviceRegistryId: 'demo/base',
    endpointUrl: 'https://merchant.example/pay'
  },
  merchantRequest: { /* ... */ },
  agent: { /* ... */ }
});