name: payspawn description: "Add spending controls to any AI agent that makes API payments. Supports x402 auto-pay, daily limits, per-transaction limits, address allowlists, and fleet provisioning. Use when your agent calls paid APIs or sends payments autonomously. Works on Base with USDC." requires: env: - name: PAYSPAWN_CREDENTIAL description: "Scoped spending credential issued from payspawn.ai/dashboard. This is NOT a private key — it is a base64-encoded spend permission authorizing the PaySpawn V5 contract to transfer USDC up to the limits you set. The credential encodes: daily cap, per-transaction limit, optional address whitelist, and expiry. Revocable on-chain at any time via dashboard or ps.agent.pause(). Set the lowest limits sufficient for your use case." secret: true required: false lifetime: "Up to 1 year from creation (set at credential creation time). Revocable immediately on-chain — revocation takes effect on the next transaction attempt." minPrivilege: "Set daily cap to the minimum USDC needed per day. Use allowedTo address whitelist to restrict payment destinations. Use per-tx cap to limit single-payment exposure." install: - package: "@payspawn/sdk" registry: "npm" version: ">=5.3.0" source: "https://www.npmjs.com/package/@payspawn/sdk" audit: "https://github.com/adambrainai/payspawn" metadata: { "openclaw": { "emoji": "🔐", "color": "#F65B1A" } }

PaySpawn — Agent Payment Controls

Set spending limits for AI agents that make payments autonomously. Limits are enforced at the smart contract level on Base — not in software, not on a server. The contract cannot be overridden.

Install

npm install @payspawn/sdk
本技能来自小葱技能站7w4.net。

Credential Setup (One Human Step)

Before the agent can make payments, the wallet owner must create a credential:

1. Go to payspawn.ai/dashboard
2. Connect your wallet (MetaMask, Coinbase Wallet, or any USDC wallet on Base)
3. Approve a USDC spending ceiling (one on-chain transaction, ~$0.005 gas)
4. Set limits: daily cap, per-transaction cap, optional address whitelist
5. Sign the credential (EIP-712 signature — no gas, no transaction)
6. Copy the credential string and set it as PAYSPAWN_CREDENTIAL in your environment

The credential is not a private key. Your wallet key never leaves your control. The agent can only spend within the limits you set — the contract enforces this and cannot be bypassed.

Usage

import { PaySpawn } from "@payspawn/sdk";
const ps = new PaySpawn(process.env.PAYSPAWN_CREDENTIAL);

// Auto-pay x402 APIs within your set limits
const res = await ps.fetch("https://api.example.com/endpoint");

// Send a payment
await ps.pay("0xRecipientAddress", 1.00);

// Check balance and remaining daily allowance
const { balance, remaining } = await ps.check();

// Pause all payments instantly (on-chain, immediate effect)
await ps.agent.pause();

// Resume payments
await ps.agent.unpause();

Fleet Mode

Provision multiple agent credentials from one shared pool. One wallet funds the pool; each agent gets its own credential with its own daily limit.

// Create a shared budget pool
const pool = await ps.pool.create({ totalBudget: 100, agentDailyLimit: 10 });

// Fund the pool: send USDC to pool.address from your wallet

// Provision credentials for each agent
const fleet = await ps.fleet.provision({ poolAddress: pool.address, count: 10 });
// fleet[0], fleet[1], ... → credential strings, one per agent

Contract Enforcement

Every payment is checked by the PaySpawn V5 contract on Base before any USDC moves:

• Daily allowance exceeded → transaction reverts
• Amount exceeds per-tx cap → transaction reverts
• Recipient not on whitelist → transaction reverts

No API override. No config flag. Math runs first, every time.

Contract address (Base Mainnet): 0xaa8e6815b0E8a3006DEe0c3171Cf9CA165fd862e
USDC (Base): 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Links

• payspawn.ai
• payspawn.ai/dashboard
• @payspawn
• npm: @payspawn/sdk

这个 Skill 质量较好，文档清晰易懂，完整介绍了如何为 AI 代理设置支付限额，防止超额支出。安全说明详细，强调了通过智能合约执行限制而非软件控制。功能覆盖全面，支持每日限额、单笔限额、地址白名单和车队模式。不过内容比较单薄，只有说明文档，没有示例代码或常见问题解答，新手可能需要额外查阅 SDK 文档才能顺利使用。