How to Use the Nuvei MCP in OpenAI Agents SDK

Q: How does OpenAI Agents SDK handle failed Nuvei transactions?

The SDK catches API errors directly from the server. If capturepayment fails due to insufficient funds, the error is passed back to the agent so it can ask the user for another card.

Q: How do I improve tool-calling performance for these billing tools?

Enable the cacheToolsList=True flag in your configuration. This prevents the OpenAI Agents SDK from repeatedly querying the server for tool definitions, speeding up calls to gettransactions.

Run safe, production-grade payment pipelines by connecting OpenAI Agents SDK to Nuvei via this secure MCP Server.

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Connect Nuvei MCP to OpenAI Agents SDK

Create your Vinkius account to connect Nuvei to OpenAI Agents SDK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Nuvei with OpenAI Agents SDK

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Run Nuvei payments with OpenAI Agents SDK guardrails

Let your agent execute real money charges safely. The `create_payment` tool triggers live network requests, while the SDK's built-in guardrails validate the payload parameters before execution. If an agent tries to pass an invalid currency or an out-of-bounds amount, the SDK blocks it before it hits the network. For multi-step checkout flows, you can hand off the task from a general support agent to a specialized billing agent. This dedicated billing agent uses `capture_payment` to capture pre-authorized amounts, keeping raw payment logic isolated from general customer inquiries.

Tokenize credit cards inside secure agent handoffs

Your agent handles cardholder data by passing raw details straight to `create_card_token`. This returns a vaulted token, keeping sensitive raw card details out of your main database. This MCP Server handles the connection so your Python code never sees raw card numbers. Once vaulted, your agent manages the token lifecycle using `get_token` and `update_token`. If a customer wants to cancel recurring billing, the agent invokes `delete_token` to halt future charges instantly.

Trace Nuvei transaction logs in the OpenAI dashboard

Monitor chargebacks and payments in real time. Your agent calls `get_transactions` to pull historical records and matches them against your internal database. Every tool call and response shows up directly in your OpenAI developer dashboard for easy tracing. If a customer disputes a transaction, the agent uses `get_payment` to verify the actual clearing status. For approved refunds, the agent executes `refund_payment` or cancels pending auths via `void_payment` directly within the conversational run.

Setup guide

Set up Nuvei MCP in OpenAI Agents SDK

Prerequisites

Python 3.10+ installed
openai-agents package (pip install openai-agents)
Active Vinkius subscription with a valid endpoint token

1

Install the SDK

Run pip install openai-agents to install the OpenAI Agents SDK. The MCP integration is built-in — no extra dependencies needed.
2

Connect via SSE transport

Use MCPServerSse with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. The SDK auto-discovers all Nuvei tools at runtime.
3

Create your Agent

Pass the MCP to Agent(mcp_servers=[server]). The agent receives Nuvei tools as native definitions — JSON schemas resolve automatically.
4

Run the agent

Call Runner.run(agent, prompt) to execute. The agent invokes the appropriate Nuvei tools and returns structured results. Copy the full example on the right to get started.

agent.py

import asyncio
from agents import Agent, Runner
from agents.mcp import MCPServerSse

async def main():
    async with MCPServerSse(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ) as server:
        agent = Agent(
            name="Nuvei Agent",
            instructions="You have access to Nuvei tools.",
            mcp_servers=[server],
        )
        result = await Runner.run(agent, "List recent transactions")
        print(result.final_output)

asyncio.run(main())

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Common questions about Nuvei MCP in OpenAI Agents SDK

It happens automatically at startup. Once you register the MCP Server URL with `MCPServerStreamableHttp`, the OpenAI Agents SDK auto-discovers all ten tools like `create_payment` and `get_payment` with zero manual configuration.

Yes, you can route tasks between specialized agents. For example, a routing agent can hand off a checkout task to a billing agent equipped with `create_card_token`, ensuring only authorized agents handle payments.

The SDK catches API errors directly from the server. If `capture_payment` fails due to insufficient funds, the error is passed back to the agent so it can ask the user for another card.

Enable the `cacheToolsList=True` flag in your configuration. This prevents the OpenAI Agents SDK from repeatedly querying the server for tool definitions, speeding up calls to `get_transactions`.

Raw card data is processed within ephemeral V8 sandboxes and tokenized immediately using `create_card_token`. This server never writes raw PANs or CVVs to disk, and the Vinkius gateway handles authorization so your OpenAI Agents SDK environment only sees masked tokens and transaction IDs.

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