How to Use the Afterpay MCP in Google ADK

Run Afterpay checkouts and payment lookups natively inside your Google ADK pipelines.

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Connect Afterpay MCP to Google ADK

Create your Vinkius account to connect Afterpay to Google ADK 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 Afterpay with Google ADK

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Process Afterpay checkouts within Google ADK agents

Your Gemini-powered agents can instantly spin up payment tokens using `create_checkout`. Because the Google ADK handles tool execution natively, your agent can convert a customer's shopping cart into an active BNPL session without manual coding. To keep transactions safe, this MCP Server uses `get_afterpay_config` to pull your merchant limits. The Google ADK agent parses these limits to block invalid checkout requests before they hit the payment gateway.

Analyze Afterpay transaction history in BigQuery

By combining the Google ADK with your data warehouse, your agent can cross-reference payment logs with customer files. The agent runs `list_payments` to pull transaction records and maps them directly to your BigQuery schemas. When resolving order disputes, the agent uses `get_payment_details` to fetch settlement info. Gemini's massive context window lets your agent analyze months of these financial logs alongside your customer support history in a single run.

Execute secure refunds via Google ADK workflows

Managing returns is straightforward when your agent uses `refund_payment` to credit customer accounts. The Google ADK allows you to restrict this capability to specific internal agents, preventing unauthorized refund calls. Before executing any refund, the agent calls `get_payment_details` to check the remaining order balance. This double-check prevents duplicate refunds and keeps your ledger accurate without manual intervention.

Setup guide

Set up Afterpay MCP in Google ADK

Prerequisites

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

1

Install Google ADK

Run pip install google-adk to install the Agent Development Kit. MCP support is included via the McpToolset class.
2

Connect via SSE transport

Use McpToolset.from_server() with SseServerParams pointing to your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Create an LlmAgent

Pass the returned mcp_tools list directly to LlmAgent(tools=mcp_tools). The ADK maps each MCP tool to a native Gemini function call — no manual schema definitions required.
4

Run with any Gemini model

The agent works with any Gemini model (gemini-2.0-flash, gemini-2.5-pro, etc.). Copy the full example on the right to get started with Afterpay tools in your ADK agent.

agent.py

from google.adk.agents import LlmAgent
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import SseServerParams

# Connect to the MCP via SSE
mcp_tools, exit_stack = await McpToolset.from_server(
    connection_params=SseServerParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    )
)

# Create your agent with auto-discovered tools
agent = LlmAgent(
    name="Afterpay_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Afterpay tools via MCP.",
    tools=mcp_tools,
)

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Common questions about Afterpay MCP in Google ADK

Initialize the toolset with your HTTP server parameters and pass it to your agent. This exposes tools like `create_checkout` and `list_payments` directly to your Gemini models.

Yes, you can use the tool name filter in the ADK to limit exposure. For instance, you can expose `get_payment_details` to customer support agents while hiding `refund_payment` entirely.

Yes, the ADK supports both transport layers. You can run this MCP Server on Vinkius via HTTP and connect your Google Cloud agents using secure streamable parameters.

Gemini can ingest thousands of transaction records returned by `list_payments`. This lets your Google ADK agent detect fraud patterns or compile complex settlement reports across massive datasets.

This integration handles sensitive financial data like refund balances, order IDs, and checkout tokens. The server runs in a secure, isolated V8 sandbox on Vinkius, ensuring your merchant credentials never leak into Google Cloud's public LLM training pipelines.

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