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Connect Avalara Avatax to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Manage global sales tax and transactions using natural conversation.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 10 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 10 available through Avalara.

  1. 01

    Create transaction

    Use create_transaction to calculate and record sales tax for any global jurisdiction, generating a full, auditable transaction record.

  2. 02

    Get account check

    Run get_account_check to verify that your connection to the AvaTax account is active and working correctly.

  3. 03

    Get tax rates by address

    Call get_tax_rates_by_address when you need to know the specific sales tax rates applicable to a physical address.

  4. 04

    Resolve address

    Use resolve_address to validate and standardize a physical address, which is necessary before calculating accurate tax rates.

Capability set02 / 03

05-07

3 capabilities in this set.

Part of 10 available through Avalara.

  1. 05

    Commit transaction

    Mark a transaction as committed using commit_transaction to finalize it for official reporting and accounting purposes.

  2. 06

    Get company

    Retrieve specific details about a company using get_company to ensure you have the right entity information for compliance.

  3. 07

    Get transaction

    Need to look up a past sale? Use get_transaction to retrieve a specific transaction record by its unique code.

Capability set03 / 03

08-10

3 capabilities in this set.

Part of 10 available through Avalara.

  1. 08

    List companies

    Run list_companies to get a list of all business entities currently set up within your AvaTax account.

  2. 09

    Void transaction

    If a sale was made in error, void_transaction allows you to cancel or void a recorded transaction.

  3. 10

    List nexus

    Use list_nexus to list the tax nexus settings for a specific company, helping you audit your compliance obligations.

Real work

What teams actually run

01

Processing a New Order

You provide the shipping address and purchase details, and the MCP resolves the address, calculates the correct tax rate, and records the transaction in one go.

02

Auditing Compliance

You ask the AI to list all active nexus settings for your company, immediately showing you where your tax obligations lie.

03

Correcting an Error

If a sale was logged incorrectly, you simply ask the AI to void the transaction and then re-create it with the correct details.

04

Checking Tax Rates

Before finalizing a quote, you ask the MCP to get tax rates for a specific physical address to confirm the local tax requirements.

Automate a task

Put Avalara to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Avalara works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Avalara to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

1009ms average. Fast in production.

Avalara is checked daily against the live service.

Daily averagePeak 1248ms
Oct 3Today
Fastest day
784ms
Slowest day
1248ms
14-day trend
Slowing+25%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 10 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Avalara, so you can see the experience inside your AI.

It does not authenticate your account with Avalara. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Avalara Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_jfxXQ1ZbCANccdeC4ZDfbDo6dMatfWuXYPsX2mU6/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Avalara capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "avalara-avatax-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_jfxXQ1ZbCANccdeC4ZDfbDo6dMatfWuXYPsX2mU6/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Avalara in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Avalara owners hand off.

This MCP is built for finance, accounting, and e-commerce operations teams. If your job involves calculating sales tax across multiple states or countries, this capability handles the complexity. You can manage your entire tax compliance workflow directly within your chat client.

  • 01

    Accountant

    Use it to audit company nexus settings and calculate taxes for complex, multi-jurisdictional orders.

  • 02

    E-commerce Operations

    Use it to validate shipping addresses and ensure tax compliance without manual data entry.

  • 03

    Developer

    Use it to test tax calculation logic in a sandbox environment and audit transaction records via natural language commands.

FAQ

Questions Avalara owners ask.

  • 01

    What kind of tax compliance does this MCP handle?

    It handles transaction tax compliance across global jurisdictions. You can calculate sales tax rates, validate addresses, and manage the recording and voiding of transactions.

  • 02

    Do I need to be a developer to use this MCP?

    No. You interact with it using natural conversation. You can audit records or test tax logic using simple language commands, even if you aren't writing code.

  • 03

    How do I ensure my business is compliant with local regulations?

    You can use the MCP to list tax nexus settings and company details. This helps you audit your current tax obligations and maintain compliance.

  • 04

    Can I use this MCP with my existing accounting software?

    This MCP focuses on the tax calculation and compliance layer. You manage the transaction records and rates within your chat client, which then feeds into your existing systems.

  • 05

    What is the difference between committing and voiding a transaction?

    You use void_transaction to cancel a sale that was made in error. You use commit_transaction to mark a sale as final and ready for official reporting.

  • 06

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

    Yes! Use the resolve_address capability 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.

  • 07

    How do I void a transaction that was recorded incorrectly?

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

  • 08

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

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

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