AgentSkillsCN

usdc-agent-payments

在 EVM 链上的 AI 代理之间，实现 USDC 支付的发送与接收。适用于代理间需要互相支付、查询 USDC 余额、通过 CCTP 实现跨链 USDC 转账，或管理悬赏任务时使用。支持“发送 USDC”、“支付代理”、“查询余额”、“USDC 转账”、“悬赏”、“奖励”、“打赏”等触发动作。

SKILL.md
--- frontmatter
name: usdc-agent-payments
description: Send and receive USDC payments between AI agents on EVM chains. Use when agents need to pay each other, check USDC balances, transfer USDC cross-chain via CCTP, or manage bounties. Triggers on "send USDC", "pay agent", "check balance", "USDC transfer", "bounty", "reward", "tip".

USDC Agent Payments

Enable AI agents to send, receive, and manage USDC payments on EVM testnets.

Prerequisites

  • •Node.js 22+
  • •Private key with testnet USDC (get from https://faucet.circle.com)
  • •Set AGENT_PRIVATE_KEY environment variable

Quick Start

Check Balance

bash
npx tsx scripts/check_balance.ts --chain sepolia --address 0x...

Send USDC (Same Chain)

bash
npx tsx scripts/send_usdc.ts \
  --chain sepolia \
  --to 0xRecipientAddress \
  --amount 1.5

Cross-Chain Transfer (CCTP)

bash
npx tsx scripts/cctp_transfer.ts \
  --from sepolia \
  --to base-sepolia \
  --recipient 0xRecipientAddress \
  --amount 5

Supported Chains (Testnet)

ChainDomain ID
Ethereum Sepolia0
Avalanche Fuji1
Arbitrum Sepolia3
Base Sepolia6
Polygon Amoy7

Scripts

scripts/check_balance.ts

Check USDC balance for any address.

Args:

  • •--chain: Chain name (sepolia, fuji, base-sepolia, etc.)
  • •--address: Wallet address to check

scripts/send_usdc.ts

Send USDC to another address on the same chain.

Args:

  • •--chain: Chain name
  • •--to: Recipient address
  • •--amount: Amount in USDC (e.g., 1.5)

scripts/cctp_transfer.ts

Transfer USDC cross-chain using Circle's CCTP.

Args:

  • •--from: Source chain
  • •--to: Destination chain
  • •--recipient: Recipient address on destination
  • •--amount: Amount in USDC

Bounty Workflow

Agents can use this skill to implement bounty systems:

  1. •Create bounty: Agent A announces task + reward amount
  2. •Claim: Agent B accepts the task
  3. •Complete: Agent B delivers work
  4. •Pay: Agent A sends USDC to Agent B using send_usdc.ts

Example conversation:

code
Agent A: "Bounty: Summarize this PDF. Reward: 5 USDC. Reply to claim."
Agent B: "Claimed. Working on it..."
Agent B: "Done. Here's the summary: [...]"
Agent A: [runs send_usdc.ts --to AgentB --amount 5]
Agent A: "Paid 5 USDC. Tx: 0x..."

References