Can the AI automatically validate a shipping address before I calculate the tax?

Yes! Use the `resolve_address` tool with the full address string. Your agent will return the validated and formatted address, ensuring that the subsequent tax calculation uses the correct jurisdiction data.

How do I void a transaction that was recorded incorrectly?

Simply ask the agent to run the `void_transaction` tool with the specific transaction code and company code. It will instantly update the status in your AvaTax account.

Is it possible to check my company's tax nexus settings through the AI?

Yes. The `list_nexus_by_company` tool allows you to audit all active tax jurisdictions where your company is registered, ensuring you are collecting taxes where required.

Avalara (AvaTax) MCP Server for Google ADK 10 tools — connect in under 2 minutes

Name: Avalara (AvaTax)
Availability: InStock
Author: Vinkius

google.github.io/adk-docs/tools/mcp-tools

Built by Vinkius GDPR 10 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Avalara (AvaTax) as an MCP tool provider through Vinkius and your ADK agents can call every tool with full schema introspection.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

from google.adk.agents import Agent
from google.adk.tools.mcp_tool import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import (
    StreamableHTTPConnectionParams,
)

# Your Vinkius token. get it at cloud.vinkius.com
mcp_tools = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
    )
)

agent = Agent(
    model="gemini-2.5-pro",
    name="avalara_avatax_agent",
    instruction=(
        "You help users interact with Avalara (AvaTax) "
        "using 10 available tools."
    ),
    tools=[mcp_tools],
)

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IAMAccess control

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DLPData protection

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Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Avalara (AvaTax) MCP Server

Connect your Avalara AvaTax account to any AI agent and automate your transaction tax compliance through natural conversation.

Google ADK natively supports Avalara (AvaTax) as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 10 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.

What you can do

Real-time Tax Calculation — Create and record transactions with accurate sales tax rates for any global jurisdiction
Precision Address Validation — Resolve and validate physical addresses to ensure maximum calculation accuracy and nexus compliance
Seamless Transaction Management — Retrieve, commit, and void tax transactions directly from your chat interface
Compliance & Nexus Auditing — List tax nexus settings and company details to ensure your business remains compliant with local regulations

The Avalara (AvaTax) MCP Server exposes 10 tools through the Vinkius. Connect it to Google ADK in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Avalara (AvaTax) to Google ADK via MCP

Follow these steps to integrate the Avalara (AvaTax) MCP Server with Google ADK.

Install Google ADK

Run pip install google-adk

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Create the agent

Save the code above and integrate into your ADK workflow

Explore tools

The agent will discover 10 tools from Avalara (AvaTax) via MCP

Why Use Google ADK with the Avalara (AvaTax) MCP Server

Google ADK provides unique advantages when paired with Avalara (AvaTax) through the Model Context Protocol.

Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution

Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with Avalara (AvaTax)

Production-ready features like session management, evaluation, and deployment come built-in. not bolted on

Seamless integration with Google Cloud services means you can combine Avalara (AvaTax) tools with BigQuery, Vertex AI, and Cloud Functions

Avalara (AvaTax) + Google ADK Use Cases

Practical scenarios where Google ADK combined with the Avalara (AvaTax) MCP Server delivers measurable value.

Enterprise data agents: ADK agents query Avalara (AvaTax) and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine Avalara (AvaTax) tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query Avalara (AvaTax) regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Avalara (AvaTax)

Avalara (AvaTax) MCP Tools for Google ADK (10)

These 10 tools become available when you connect Avalara (AvaTax) to Google ADK via MCP:

commit_transaction

Mark a transaction as committed for reporting

create_transaction

Calculate tax and record a transaction

get_account_check

Verify AvaTax account connection

get_company

Get details for a specific company

get_tax_rates_by_address

Get tax rates for a physical address

get_transaction

Retrieve a specific transaction by code

list_companies

List all companies in the account

list_nexus

List tax nexus for a specific company

resolve_address

Validate and resolve a physical address

void_transaction

Void a transaction

Example Prompts for Avalara (AvaTax) in Google ADK

Ready-to-use prompts you can give your Google ADK agent to start working with Avalara (AvaTax) immediately.

"Resolve the following address: '2000 Main St, Irvine, CA 92614'."

"List all active nexus settings for my company 'MainStore'."

"Calculate sales tax for a $100.00 purchase from Seattle to New York."

Troubleshooting Avalara (AvaTax) MCP Server with Google ADK

Common issues when connecting Avalara (AvaTax) to Google ADK through the Vinkius, and how to resolve them.

McpToolset not found

Update: pip install --upgrade google-adk

Avalara (AvaTax) + Google ADK FAQ

Common questions about integrating Avalara (AvaTax) MCP Server with Google ADK.

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.