How to Use the Adyen MCP in Google ADK

Q: How do I register the Adyen MCP tools inside my Google ADK agent?

Import McpToolset from google-adk and pass your Vinkius Adyen HTTP URL. Then, add this toolset object directly to the tools list of your Google ADK LlmAgent.

Q: Can I restrict my Google ADK agent from issuing Adyen refunds?

Yes, use the toolnames filter when initializing your McpToolset in Google ADK to expose only safe tools like getpaymentdetails while omitting refundpayment. Filtering tools keeps your financial operations completely secure.

Q: How does Gemini leverage Adyen merchant IDs for multi-region support in Google ADK?

Your Google ADK agent uses listmerchants to extract regional IDs, then relies on Gemini's reasoning to select the correct merchant ID before querying configuration details. This step ensures that your automated flows target the correct regional entity.

Connect your Google ADK enterprise agents directly to Adyen to manage global payments and merchant accounts.

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Connect Adyen MCP to Google ADK

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Setup Adyen with Google ADK

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BigQuery-driven refunds via Google ADK

Enterprise payment reconciliation in Adyen relies on your Google ADK agent running `refund_payment` to resolve disputes directly from your BigQuery transaction tables. Integrating Google ADK with this MCP Server lets your Gemini agent scan SQL data, extract disputed PSP references, and immediately execute the refund to resolve issues. This setup turns batch data analysis into direct Adyen action through Google ADK. Your Google ADK agent reads the dispute records from your cloud database, runs the Adyen refund tool, and logs the execution status back to your database in one cycle.

Long-context merchant audits

Gemini models in Google ADK extract Adyen merchant IDs by executing `list_merchants` to find active profiles across all global regions. When you pass raw contract documents to Google ADK, your agent runs this tool to match active regional profiles against negotiated contract terms. The Google ADK agent then calls `get_merchant_details` to verify that the active Adyen technical configuration matches what was negotiated. This allows you to audit hundreds of Adyen merchant accounts without writing custom API integration code in Google ADK.

Deep payment analysis with Google ADK

Resolving complex Adyen payment failures requires your Google ADK agent to call `get_payment_details` to fetch the complete capture metadata for any 16-digit PSP reference. This tool retrieves critical data points like authorization codes and regional routing logs. Because Gemini handles massive token contexts in Google ADK, your agent can analyze years of transaction history alongside the returned Adyen metadata to spot pattern-based processing errors. You can restrict this Google ADK agent to only this tool by defining the `tool_names` filter in your MCP Server configuration.

Setup guide

Set up Adyen 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 Adyen 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="Adyen_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Adyen tools via MCP.",
    tools=mcp_tools,
)

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Common questions about Adyen MCP in Google ADK

Import `McpToolset` from `google-adk` and pass your Vinkius Adyen HTTP URL. Then, add this toolset object directly to the `tools` list of your Google ADK `LlmAgent`.

Yes, use the `tool_names` filter when initializing your `McpToolset` in Google ADK to expose only safe tools like `get_payment_details` while omitting `refund_payment`. Filtering tools keeps your financial operations completely secure.

Yes, Google ADK supports both Stdio and HTTP transports, allowing your enterprise agent to communicate with the Adyen server wherever it is hosted. Both setups provide the same direct execution capabilities.

Your Google ADK agent uses `list_merchants` to extract regional IDs, then relies on Gemini's reasoning to select the correct merchant ID before querying configuration details. This step ensures that your automated flows target the correct regional entity.

Your Adyen PSP references and refund amounts are transmitted over encrypted HTTPS directly to your Gemini agent in Google ADK. Vinkius executes these MCP requests in zero-trust, ephemeral sandboxes that never persist your Google ADK payment metadata.

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