AgentPay VN

PyPI version License: MIT MCP Registry

VietQR payment infrastructure for AI agents — collect money inside any conversation.

AgentPay VN lets AI agents (Claude, GPT, custom bots) generate payment QR codes, send them to users, and automatically confirm when the money arrives — all without ever holding or touching funds. Money flows directly from the payer's bank account into the merchant's account; AgentPay only reads the bank transaction feed to confirm settlement.

Status: Early access / self-hosted — running on the same swarm as Sổ Nợ AI.

How it works

AI Agent                   AgentPay API              Bank feed (SePay)
   |                            |                           |
   |-- create_payment_request ->|                           |
   |<- { qr_image_url, id } ----|                           |
   |                            |                           |
   |-- send QR to user -------->|                           |
   |                            |      user scans & pays    |
   |                            |<-- webhook (bank txn) ----|
   |                            |-- match AP* pay_code      |
   |                            |-- status → settled        |
   |<-- await_settlement done --|                           |
   |                            |                           |
   |-- deliver order / unlock ->|                           |

Create — agent calls POST /v1/payment-requests → gets a VietQR image URL and a checkout page.
Send — agent embeds the QR image or sends the checkout link to the user in chat.
Await — agent calls await_settlement() (or the MCP tool) to poll until status = settled.
Deliver — only after confirmed settlement does the agent release the goods/service.

AgentPay never holds money. The QR points directly at the merchant's bank account number. The platform only monitors the bank transaction feed to detect matching transfers.

Related MCP server: Lightning Enable MCP

Quick start

1. Install

pip install agentpay-vn

2. Set your API key

export AGENTPAY_API_KEY=ap_test_xxx   # sandbox key for testing

Get a key from the admin dashboard (self-hosted) or contact the platform operator.

3. Collect a payment (3 lines)

from agentpay.client import AsyncAgentPayClient, await_settlement
import asyncio

async def main():
    async with AsyncAgentPayClient("ap_test_xxx") as client:
        pr = await client.create_payment_request(amount=50_000, description="Order #1")
        print(pr["checkout_url"])          # send this link to your user
        result = await await_settlement(client, pr["id"], timeout=120)
        assert result["status"] == "settled"

asyncio.run(main())

See examples/quickstart.py for the full runnable version.

MCP server setup

AgentPay ships an MCP server so any MCP-compatible AI agent can call it as a tool — no extra code needed.

Claude Desktop / Claude Code

Add to claude_desktop_config.json (or use examples/claude_desktop_config.json):

{
  "mcpServers": {
    "agentpay": {
      "command": "python",
      "args": ["-m", "agentpay.mcp_server"],
      "env": {
        "AGENTPAY_API_KEY": "ap_test_xxx",
        "AGENTPAY_BASE_URL": "https://agentpay.servicesai.vn/v1"
      }
    }
  }
}

Or use the installed console script:

{
  "mcpServers": {
    "agentpay": {
      "command": "agentpay-mcp",
      "env": { "AGENTPAY_API_KEY": "ap_live_xxx" }
    }
  }
}

Available MCP tools

Tool	Description
`create_payment_request`	Generate a VietQR code for a given amount
`check_payment`	Get current status of a payment request
`await_settlement`	Poll until payment arrives or timeout (max 600 s)
`list_recent_payments`	List last N settled transactions

Python SDK

Synchronous

from agentpay.client import AgentPayClient

with AgentPayClient("ap_live_xxx") as client:
    # Create
    pr = client.create_payment_request(
        amount=150_000,
        description="Consulting session 30 min",
        ttl_minutes=30,
        idempotency_key="session-abc-123",
    )

    # Poll manually
    import time
    for _ in range(60):
        pr = client.get_payment_request(pr["id"])
        if pr["status"] != "pending":
            break
        time.sleep(5)

    # Reconcile
    txns = client.list_transactions(limit=10)

Asynchronous

from agentpay.client import AsyncAgentPayClient, await_settlement

async with AsyncAgentPayClient("ap_live_xxx") as client:
    pr = await client.create_payment_request(amount=75_000, description="eBook download")
    result = await await_settlement(client, pr["id"], timeout=300)
    if result["status"] == "settled":
        send_download_link(result["metadata"].get("email"))

Webhook verification

import hashlib, hmac

def verify_webhook(raw_body: bytes, signature_header: str, secret: str) -> bool:
    expected = hmac.new(secret.encode(), raw_body, hashlib.sha256).hexdigest()
    return hmac.compare_digest(expected, signature_header)

ep = client.register_webhook(
    url="https://your-server.com/webhooks/agentpay",
    events=["payment.settled", "payment.expired"],
)
print(ep["secret"])  # store this — shown only once

API reference

OpenAPI spec: agentpay-openapi.yaml
Base URL: https://agentpay.servicesai.vn/v1
Authentication: Authorization: Bearer ap_live_xxx (or ap_test_xxx for sandbox)

Key endpoints

Method	Path	Description
`POST`	`/v1/payment-requests`	Create payment request
`GET`	`/v1/payment-requests/{id}`	Get status
`POST`	`/v1/payment-requests/{id}/cancel`	Cancel pending request
`GET`	`/v1/transactions`	List settled transactions
`POST`	`/v1/webhook-endpoints`	Register webhook URL
`POST`	`/v1/sandbox/simulate-settlement`	Simulate payment (sandbox only)
`GET`	`/pay/{pay_code}`	Public checkout page (HTML, mobile-friendly)

Self-hosting

AgentPay runs as part of the Sổ Nợ AI FastAPI backend.

Requirements

Docker Swarm cluster (same as Sono)
MongoDB (shared with Sono)
SePay bank feed account (for live payments)
Nginx with an agentpay.servicesai.vn vhost

Environment variables

Variable	Default	Description
`AGENTPAY_BASE_URL`	`https://agentpay.servicesai.vn`	Public base URL for checkout links
`MONGO_URI`	`mongodb://localhost:27017`	Inherited from Sono
`BILLING_WEBHOOK_TOKEN`	—	SePay webhook token (inherited)

Create an API key (admin)

curl -X POST https://sono.servicesai.vn/api/admin/agentpay/keys \
  -H "Authorization: Bearer <admin-jwt>" \
  -H "Content-Type: application/json" \
  -d '{"org_id": "<shop-user-id>", "name": "My bot", "livemode": true}'

The response includes the full key — store it immediately; it is shown only once.

Rate limits

Tier	Settled payments/month	Requests/minute
Free	50	120

Design principles

No money held — QR codes point directly at the merchant's bank account. AgentPay only reads the transaction feed; it never touches the money.
Idempotency — pass an Idempotency-Key header on POST /payment-requests to safely retry without creating duplicates (24-hour deduplication window).
HMAC webhook verification — every outbound webhook is signed with HMAC-SHA256(whsec_..., raw_body) in the AgentPay-Signature header. Always verify before processing.
Sandbox — use ap_test_* keys and POST /v1/sandbox/simulate-settlement to develop and test without real transactions.
Minimal trust surface — the MCP server is a thin REST client with no local secrets beyond the API key. Compromising an agent key only exposes one tenant's payment-request creation ability.

agentpay-vn