Multi-Chain Support

const client = new MultiChainCreditClient({
  sequencerUrl: 'https://sequencer.example.com',
  relayerUrls: {
    'eip155:8453': 'https://base-relayer.example.com',
    'solana:devnet': 'https://solana-relayer.example.com'
  }
});

// Credit the agent once
await client.adminCredit({
  agentId: 'agent_abc123',
  amountMicros: '5000000' // 5 USD equivalent in micros
});

export SEQUENCER_SUPPORTED_CHAIN_REFS="eip155:8453,solana:devnet"

export RELAYER_CHAIN_REF="eip155:84532"
export RELAYER_PAYOUT_MODE="evm" # or "noop" for testing
export RELAYER_EVM_PRIVATE_KEY="0x..."

export RELAYER_CHAIN_REF="solana:devnet"
export RELAYER_PAYOUT_MODE="solana"
export SOLANA_GATEWAY_PROGRAM_ID="..."
export SOLANA_PAYER_KEYPAIR_PATH="./keypair.json"

// Create intents for both chains
const baseIntent: IntentV1 = {
  version: 1,
  agentId,
  agentPubKey,
  signatureScheme: 'ed25519-sha256-v1',
  agentNonce: '0',
  amountMicros: '1500000',
  merchantId: baseMerchantId,
  requiredChainRef: 'eip155:8453',
  expiresAt: String(now + 300),
  requestId: randomHex32()
};

const solanaIntent: IntentV1 = {
  version: 1,
  agentId,
  agentPubKey,
  signatureScheme: 'ed25519-sha256-v1',
  agentNonce: '1',
  amountMicros: '2500000',
  merchantId: solanaMerchantId,
  requiredChainRef: 'solana:devnet',
  expiresAt: String(now + 300),
  requestId: randomHex32()
};

// Both will deduct from the same credit balance
const baseAuth = await client.authorize({ intent: baseIntent, agentSig });
const solanaAuth = await client.authorize({ intent: solanaIntent, agentSig });