Usdc Dance Evvm Payment

USDC.d EVVM Payment Skill

Enables OpenClaw agents to autonomously pay with USDC.d (USDC Dance) tokens via the x402 protocol on Story Aeneid EVVM using Privy server wallets.

Features

• ✅ Privy Integration: Uses Privy server wallets for autonomous agent transactions
• ✅ x402 Protocol Support: EIP-3009 transferWithAuthorization for gasless payments
• ✅ EVVM Integration: Seamless payment routing through EVVM Core
• ✅ Autonomous Payments: Agents can pay each other without human intervention
• ✅ USDC.d on Story Aeneid: BridgeUSDC from custom bridge (Base Sepolia → Story Aeneid); LayerZero path when LZ supports Story Aeneid
• ✅ Policy-Based Security: Leverage Privy policies for transaction guardrails
• ✅ Receipt Tracking: Payment receipts for verification and accounting

Prerequisites

1. Privy Account: Get credentials from dashboard.privy.io
2. Privy Skill Installed: clawhub install privy
3. OpenClaw Config: Add Privy credentials to ~/.openclaw/openclaw.json:

{
  "env": {
    "vars": {
      "PRIVY_APP_ID": "your-app-id",
      "PRIVY_APP_SECRET": "your-app-secret"
    }
  }
}

Quick Start

Option 1: Using Privy Wallet (Recommended)

import { payViaEVVMWithPrivy } from './src/index';

// Agent makes payment using Privy wallet (Bridge USDC.d on Story Aeneid testnet)
const receipt = await payViaEVVMWithPrivy({
  walletId: 'privy-wallet-id',
  to: humanOwnerAddress,
  amount: '1000000', // 1 USDC.d (6 decimals)
  receiptId: 'payment_123',
  adapterAddress: '0x00ed0E80E5EAE285d98eC50236aE97e2AF615314', // Bridge EVVM adapter
  usdcDanceAddress: '0x5f7aEf47131ab78a528eC939ac888D15FcF40C40', // BridgeUSDC
  evvmCoreAddress: '0xa6a02E8e17b819328DDB16A0ad31dD83Dd14BA3b',
  evvmId: 1140,
  rpcUrl: 'https://aeneid.storyrpc.io'
});

Option 2: Using Private Key (Legacy)

import { payViaEVVM } from './src/index';

const receipt = await payViaEVVM({
  from: agentAddress,
  to: humanOwnerAddress,
  amount: '1000000',
  receiptId: 'payment_123',
  privateKey: agentPrivateKey,
  adapterAddress: '0x00ed0E80E5EAE285d98eC50236aE97e2AF615314', // Bridge EVVM adapter
  usdcDanceAddress: '0x5f7aEf47131ab78a528eC939ac888D15FcF40C40', // BridgeUSDC
  // ... other options
});

Configuration

Required Addresses (Story Aeneid Testnet)

• EVVM Core: 0xa6a02E8e17b819328DDB16A0ad31dD83Dd14BA3b
• EVVM ID: 1140
• USDC.d Token (Bridge): 0x5f7aEf47131ab78a528eC939ac888D15FcF40C40 — BridgeUSDC (custom bridge; use for OpenClaw until LayerZero supports Story Aeneid)
• Payment Adapter (Bridge): 0x00ed0E80E5EAE285d98eC50236aE97e2AF615314 — EVVMPaymentAdapter for BridgeUSDC

When LayerZero supports Story Aeneid: You can switch to the LayerZero USDC.d and adapter; see lz-bridge deployments.

Network Details

• Chain: Story Aeneid Testnet
• Chain ID: 1315
• Native Currency: IP
• RPC: https://aeneid.storyrpc.io

Privy Integration

This skill integrates with the Privy OpenClaw skill to enable:

• Autonomous Wallet Management: Agents have their own Privy server wallets
• Policy-Based Security: Use Privy policies to limit spending, restrict chains, or whitelist contracts
• No Private Key Storage: Privy handles key management securely
• Transaction Signing: Privy signs EIP-3009 and EIP-191 signatures via API

Creating a Privy Wallet for Your Agent

Ask your OpenClaw agent:

"Create an Ethereum wallet for yourself using Privy on Story Aeneid testnet"

The agent will create a Privy server wallet and return the wallet ID.

Setting Up Policies

Create spending limits and restrictions:

"Create a Privy policy that limits USDC.d payments to 10 USDC.d max per transaction"

"Attach the spending limit policy to my Privy wallet"

Functions

payViaEVVMWithPrivy(options)

Process a payment through EVVM using x402 protocol with Privy wallet.

Parameters:

• walletId: Privy wallet ID
• to: Recipient address (human owner or other agent)
• toIdentity: Optional EVVM username (empty string if using address)
• amount: Payment amount in smallest unit (6 decimals for USDC.d)
• receiptId: Unique receipt identifier
• adapterAddress: EVVMPaymentAdapter contract address (use Bridge adapter for BridgeUSDC on testnet)
• usdcDanceAddress: USDC.d token contract address (use BridgeUSDC for current testnet)
• evvmCoreAddress: EVVM Core contract address
• evvmId: EVVM instance ID (1140 for Story Aeneid)
• rpcUrl: Story Aeneid RPC endpoint
• privyAppId: Privy App ID (optional, uses env var if not provided)
• privyAppSecret: Privy App Secret (optional, uses env var if not provided)

Returns: Transaction receipt

payViaEVVM(options) (Legacy)

Process payment using private key directly (not recommended for production).

checkPaymentStatus(receiptId, adapterAddress, rpcUrl)

Check if a payment was successfully processed.

Examples

See examples/ directory for:

• agent-payment-privy-example.ts - Using Privy wallets
• agent-payment-example.ts - Using private keys (legacy)

Security Considerations

⚠️ Important: When using Privy wallets:

1. Set Policies: Always configure spending limits and restrictions
2. Test First: Test on testnet before using real funds
3. Monitor Activity: Regularly check wallet activity in Privy dashboard
4. Rotate Credentials: If compromised, rotate Privy App Secret immediately

Requirements

• Node.js 18+
• ethers.js v6
• Privy skill installed (clawhub install privy)
• Access to Story Aeneid RPC endpoint
• Privy account with App ID and App Secret

License

MIT