How to Use the ISS Calculator MCP in Google ADK

Q: How do I configure ISS Calculator with Google ADK?

Install the package using pip install google-adk to prepare your Google ADK agent for the ISS Calculator MCP. Initialize McpToolset with your ISS Calculator HTTP parameters, and pass it directly to your Google ADK LlmAgent instance.

Q: Can I restrict which ISS Calculator tools are exposed to Google ADK?

Yes, you can use the optional toolnames filter in your Google ADK toolset configuration to limit the exposed ISS Calculator tools. This lets you restrict your Google ADK agent to specific calculations if you do not want it checking withholding status via ISS Calculator.

Connect ISS Calculator MCP to Google ADK to run municipal tax calculations directly alongside your BigQuery data.

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Connect ISS Calculator MCP to Google ADK

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Setup ISS Calculator with Google ADK

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Fetch municipal tax rates via Google ADK

Resolving municipal tax percentages is handled by this ISS Calculator MCP using `get_applicable_rate` to match services with local tax laws for your Google ADK agent. Your Google ADK agent pulls this ISS Calculator data to calculate taxes for transactions stored in your cloud database. This lets you update your enterprise billing records in BigQuery with correct ISS Calculator local rates.

Check withholding status for corporate clients

To verify if a service invoice requires tax withholding, this ISS Calculator MCP uses `check_withholding_status` at the source for your Google ADK agent. Your Google ADK agent runs this ISS Calculator check to determine the correct net payment amount for corporate vendors. This automated Google ADK flow prevents ISS Calculator compliance errors in your accounts payable workflow.

Calculate total tax liability inside Google Cloud

Computing the final tax due is done by this ISS Calculator MCP using `calculate_tax_liability` based on the service type and city for your Google ADK agent. Your Google ADK agent relies on long-context reasoning to analyze complex service contracts before feeding the terms into this ISS Calculator tool. The resulting tax liability is then stored directly back into your Google Cloud infrastructure.

Setup guide

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

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by ISS Calculator. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about ISS Calculator MCP in Google ADK

Install the package using `pip install google-adk` to prepare your Google ADK agent for the ISS Calculator MCP. Initialize `McpToolset` with your ISS Calculator HTTP parameters, and pass it directly to your Google ADK `LlmAgent` instance.

Yes, you can use the optional `tool_names` filter in your Google ADK toolset configuration to limit the exposed ISS Calculator tools. This lets you restrict your Google ADK agent to specific calculations if you do not want it checking withholding status via ISS Calculator.

You can run ISS Calculator calculations in batches by feeding data from BigQuery into your Google ADK agent. The Google ADK agent then calls the ISS Calculator MCP tools sequentially to process thousands of municipal tax rates.

Yes, the ISS Calculator integration with Google ADK supports both transport methods. You can run the ISS Calculator tax tool locally via Stdio or host it as a remote microservice via HTTP for your Google ADK agent.

Yes, all ISS Calculator tax inputs like service codes and municipal IDs are processed in transit without being cached by the Google ADK agent. Your enterprise financial data remains fully contained within your Google Cloud infrastructure when using the ISS Calculator MCP.

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