付费MCP工具客户端

npm install agentic-mcp-pay-client

import { PaidMcpClient } from "agentic-mcp-pay-client";

const client = new PaidMcpClient(
  { name: "my-agent", version: "1.0.0" },
  {
    walletPrivateKey: process.env.WALLET_KEY,
    budget: {
      maxPerCallCents: 1000,  // $10 max per tool call
      maxDailyCents: 10000,   // $100 daily cap
    },
  }
);

await client.connect(transport);

// Tools that require payment are handled automatically
const result = await client.callTool({
  name: "premium-search",
  arguments: { query: "market analysis" },
});

const client = new PaidMcpClient(
  { name: "my-agent", version: "1.0.0" },
  {
    walletPrivateKey: process.env.WALLET_KEY,
    budget: {
      maxPerCallCents: 500,   // reject any single call over $5
      maxDailyCents: 5000,    // stop after $50/day
    },
  }
);

const client = new PaidMcpClient(
  { name: "my-agent", version: "1.0.0" },
  {
    walletPrivateKey: process.env.WALLET_KEY,
    onPaymentRequired: async (info) => {
      console.log(`Tool "${info.toolName}" costs ${info.amountCents}c (${info.protocol})`);
      return confirm("Approve?"); // return false to reject
    },
  }
);

const stats = client.getSpendingStats();
// { totalCents: 1500, todayCents: 500, callCount: 3 }