三行代码，让 Agent 学会花钱

# ① 创建支付会话（任务预算 ¥50）
curl -X POST https://api.payhub.cn/v1/agent/session \
  -H "Authorization: Bearer $AGENT_TOKEN" \
  -d '{ "task_id": "task-88",
       "budget_limit": { "amount": "50.00", "currency": "CNY" } }'
# → { "session_id": "ps_abc123", "status": "active" }

# ② 遇到 402，转发挑战给 PayHub
curl -X POST https://api.payhub.cn/v1/agent/resolve-402 \
  -H "Authorization: Bearer $AGENT_TOKEN" \
  -H "Idempotency-Key: task-88-402-01" \
  -d '{ "session_id": "ps_abc123",
       "resource_url": "https://api.marketdata.cn/v1/premium",
       "payment_required": { "scheme": "exact", "amount": "0.50", "currency": "CNY" } }'
# → { "status": "paid", "retry_instructions": { "headers": { "PAYMENT-RESPONSE": "..." } } }

from payhub import PayHubClient

client = PayHubClient("ph_live_...")

# ① 创建支付会话（任务预算 ¥50）
session = client.create_session(
    task_id="task-88",
    budget_limit={"amount": "50.00", "currency": "CNY"},
    allowed_categories=["data"],          # 可选：服务类别白名单
)

# ② 遇到 402 挑战，一行解决（自动支付 + 自动重试）
result = client.resolve_and_retry(session.id, challenge)
print(result.status)        # paid
print(result.data)         # 200 OK 的业务数据

import { PayHub } from "@payhub/sdk";

const payhub = new PayHub(process.env.PAYHUB_TOKEN!);

// ① 创建支付会话（任务预算 ¥50）
const session = await payhub.sessions.create({
  taskId: "task-88",
  budgetLimit: { amount: "50.00", currency: "CNY" },
});

// ② 遇到 402 挑战，一行解决（自动支付 + 自动重试）
const result = await payhub.resolveAndRetry(session.id, challenge);
console.log(result.status);  // paid
console.log(result.data);    // 200 OK 的业务数据