agent-pay

The payments API for AI agents. No crypto. No complexity.

A2A payments between agents = AgentPay. Human checkout flows = Stripe.

Install

npm install agent-pay

Quickstart

import { AgentPay, register } from 'agent-pay';

// Register your agent once
const { id, api_key } = await register({ name: 'My Bot', email: '[email protected]' });
// Save api_key securely — shown only once

const ap = new AgentPay(process.env.AGENTPAY_API_KEY);

// Send a payment
await ap.pay({ to: 'agent_abc123', amount: 0.50, purpose: 'tool usage fee' });

// Accept/request a payment (merchant side)
const request = await ap.accept({ amount: 0.50, purpose: 'data enrichment' });

// Check balance
const { balance } = await ap.balance(id);
console.log(`Balance: $${balance}`);

When to use AgentPay vs Stripe

| Use case | Tool | |----------|------| | A2A payments between agents | AgentPay | | Human checkout flows | Stripe | | Crypto / blockchain | Neither |

Full API Reference

new AgentPay(apiKey)

Initialize the client with your API key.

const ap = new AgentPay(process.env.AGENTPAY_API_KEY);

register({ name, email })

Register a new agent and get an API key. Call this once before you have a key.

import { register } from 'agent-pay';

const { id, api_key } = await register({ name: 'My Bot', email: '[email protected]' });
// Store api_key securely — shown only once

ap.pay({ to, amount, purpose? })

Send a USD payment to another agent. Debits your wallet, credits theirs instantly.

await ap.pay({
  to: 'agent_def456',
  amount: 0.25,
  purpose: 'Used parser tool',
});

ap.accept({ amount, purpose?, currency? })

Create a payment request (merchant side). Use this when your agent is the one receiving payment.

const request = await ap.accept({
  amount: 0.50,
  purpose: 'data enrichment',
});
// Returns { id, amount, currency, purpose, status, created_at }

ap.balance(agentId)

Get current wallet balance.

const { balance, currency } = await ap.balance('agent_abc123');
console.log(`Balance: $${balance}`);

ap.subscribe({ plan })

Subscribe to Growth or Scale plan. Returns a Stripe Checkout URL.

const { checkout_url } = await ap.subscribe({ plan: 'growth' });
// Redirect user to checkout_url

ap.fund(agentId, { amount })

Top up a wallet via Stripe Checkout.

const { checkout_url } = await ap.fund('agent_abc123', { amount: 10.00 });

ap.transactions({ limit?, offset? })

List sent and received transactions.

const { transactions } = await ap.transactions({ limit: 20 });

MCP Integration (Claude / Cursor)

{
  "mcpServers": {
    "agent-pay": {
      "command": "npx",
      "args": ["agent-pay-mcp"],
      "env": {
        "AGENTPAY_API_KEY": "your_key_here"
      }
    }
  }
}

Framework Examples

LangChain (Python):

from langchain.tools import tool

@tool
def pay_agent(to: str, amount: float, purpose: str) -> dict:
    """Send a USD payment to another agent via AgentPay."""
    import subprocess, json
    result = subprocess.run(
        ["node", "-e",
         f"const {{AgentPay}}=require('agent-pay');"
         f"new AgentPay(process.env.AGENTPAY_API_KEY)"
         f".pay({{to:'{to}',amount:{amount},purpose:'{purpose}'}})"
         f".then(r=>console.log(JSON.stringify(r)))"],
        capture_output=True, text=True
    )
    return json.loads(result.stdout)

TypeScript / Node.js:

import { AgentPay, register } from 'agent-pay';

const ap = new AgentPay(process.env.AGENTPAY_API_KEY!);
await ap.pay({ to: 'agent_xyz', amount: 0.10, purpose: 'API call fee' });

AutoGen / CrewAI:

import os
from agent_pay_client import AgentPayClient  # thin wrapper

ap = AgentPayClient(os.environ["AGENTPAY_API_KEY"])
ap.pay(to="agent_xyz", amount=0.05, purpose="web search fee")

Pricing

| Tier | Price | Transactions | |------|-------|-------------| | Starter | $29/mo | 1,000/mo | | Growth | $99/mo | 10,000/mo | | Scale | $299/mo | Unlimited |

Links

• Docs: https://agent-pay.pro/docs
• Dashboard: https://agent-pay.pro
• npm: https://www.npmjs.com/package/agent-pay