How to Use the Modulr MCP in Google ADK

Q: Can I filter which Modulr tools my Google ADK agent sees?

Yes. You can use the toolnames filter in your McpToolset setup. This restricts your agent to only the specific payment operations you authorize.

Q: How do I audit my Modulr activity in Google ADK?

The modulrlistpayments tool returns arrays of payment status. You can map these responses to your agent's logic for real-time monitoring.

Connect Modulr to your Google ADK agents. Build high-speed banking workflows on your Google Cloud infrastructure.

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Connect Modulr MCP to Google ADK

Create your Vinkius account to connect Modulr 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 Modulr with Google ADK

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Execute payouts from Google ADK agents

Use `modulr_create_payment` to push funds directly from your agent workflow. You integrate banking logic into your existing Google Cloud environment, keeping your code and your capital movement in the same ecosystem. The server handles the HMAC authentication natively. Your agent sends the request, and the bank processes the payout without you managing manual key rotation.

Audit financial state within Google ADK

Call `modulr_get_transactions` to pull ledger data straight into your agent's context window. Your agent can then reason over the last 1M tokens of activity to detect discrepancies or confirm settlement. Use `modulr_get_accounts` to keep track of your liquidity. You get a clear view of your available funds before your agent triggers any new payout.

Manage customer entities using Google ADK

Create beneficiaries and customers using `modulr_create_beneficiary` and `modulr_create_account`. This allows your agent to register new payees on the fly as you scale your marketplace. All tools are filtered via your McpToolset configuration. You expose only what your agent needs, keeping your infrastructure tight and your operations focused.

Setup guide

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

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Common questions about Modulr MCP in Google ADK

Install the MCP toolset and pass your endpoint to the McpToolset configuration. Your agent will then see the tools and be able to act on your banking data.

It runs as an external MCP server that your agent calls via HTTP. It fits right into your existing Google Cloud agent architecture.

Yes. You can use the tool_names filter in your McpToolset setup. This restricts your agent to only the specific payment operations you authorize.

The `modulr_list_payments` tool returns arrays of payment status. You can map these responses to your agent's logic for real-time monitoring.

The server acts as a transient bridge for your payment instructions. It never logs your transaction history or customer account numbers, keeping your sensitive banking data outside the agent's memory.

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