SIGN UPLOG IN
X (Twitter)LinkedInGitHubDiscordYouTube

How to connect Anrok to Claude

Connect Claude Web, Desktop and Cowork to Anrok MCP. List recent anrok sales tax transactions, review anrok exemption records for expired certificates, and more using natural language, with authentication handled for you.

Get started for freeGet a demo
Anrok logoAnrok
Api Key

Anrok is a sales tax platform for software businesses that automates calculations, compliance, filings, and exemption management. It helps finance teams stay accurate and reduce the manual work of tax operations.

26 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Anrok account to Claude via Composio Connect, enabling it to list recent Anrok sales tax transactions, review Anrok exemption records for expired certificates, check Anrok filing data for California, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Anrok with

ChatGPTHermesAtomic Agent

Connecting Anrok to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Anrok account

Back in Claude, ask it to connect to Anrok or give it any Anrok-related task.

For example, ask Claude to:

  • "List recent Anrok sales tax transactions"
  • "Review Anrok exemption records for expired certificates"
  • "Check Anrok filing data for California"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Anrok account is ready to use.

What is the Anrok Claude Connector, and what's possible with it?

The Anrok MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Anrok account. It provides structured and secure access to your sales tax calculations, customers, products, transactions, exemption certificates, and filings, so your agent can calculate transaction taxes, manage customer and product records, handle exemptions, review transactions and filings, and resolve taxable addresses on your behalf.

  • Sales tax calculation and address resolution: Have your agent calculate tax for an invoice without recording a transaction, resolve customer addresses, identify taxable jurisdictions, and validate tax IDs.
  • Customer and product management: Let the agent create and retrieve customers, list customer records, create and retrieve products, assign tax categories, and manage product mappings from billing integrations.
  • Exemption certificate handling: Direct your agent to create exemption certificates or customer certificate requests, review certificate details, list certificates by customer or status, and archive certificates when they are no longer valid.
  • Transaction management: Instruct your agent to create or update finalized invoice transactions, retrieve and list transactions, void transactions, or create a transaction that negates an earlier one.
  • Filing and transaction review: Have your agent list jurisdiction filings, find the transactions associated with a filing, review filing conversion rates, and remove selected transactions from a filing.

Troubleshooting

1. Why does Claude not use the Composio connector for Anrok?

The connector can show as connected, but Claude must use it in each Anrok conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Anrok again.

2. Why does Claude show an MCP server error before Anrok connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Anrok.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Anrok.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Anrok authorization link not work?

The Composio connector is one server. Your Anrok account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Anrok connection.
  • Composio creates a fresh Anrok authorization link.
  • Open that link in your browser and finish the Anrok sign-in.

4. Why do Anrok actions fail after they worked before?

The Anrok connection can expire or lose permission.

  • Ask Claude to inspect the Anrok connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Anrok account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Anrok.
  • If the action still fails with a permission error, check that the connected account has that permission in Anrok itself.

5. How do I switch to a different Anrok account?

Claude can manage the Anrok connection for you.

  • Ask Claude to disconnect or delete the current Anrok account.
  • Ask Claude to connect Anrok again.
  • Open the new Composio authorization link for Anrok.
  • Sign in with the other Anrok account in the browser.
  • After the account connects, ask Claude to retry the Anrok task.

6. Why is my Anrok connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Anrok connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Anrok tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Anrok.
TOOLS

Supported Tools

Every Anrok action and event your agent gets out of the box.

Add Product ID Mapping

Map a billing integration's source product ID to an existing Anrok product, optionally overwriting an existing source mapping.

Archive Exemption Certificate

Archive and invalidate an exemption certificate by its Anrok certificate ID.

Calculate Transaction Tax

Calculate tax for an ephemeral invoice without recording a transaction in Anrok.

Create Customer

Create an Anrok customer with the external ID used to link transactions and exemption certificates.

Create Exemption Certificate

Create a customer tax-exemption certificate from a local or uploaded file and jurisdiction coverage.

Create Exemption Certificate Request

Create a premium customer certificate request, emailing its submission link by default, and optionally auto-approve eligible submissions.

Create or Update Transaction

Create a finalized invoice transaction.

Create Product

Create an Anrok product ID and assign its product tax category.

Create Transaction Negation

Create a new transaction that exactly negates an existing transaction, lowering or reversing the original transaction's reported sales and tax totals, optionally enforcing its expected version.

Get Customer

Retrieve one Anrok customer by its external customer ID.

Get Exemption Certificate

Retrieve one exemption certificate and its status and jurisdiction details by certificate ID.

Get Product

Retrieve one Anrok product by its external product ID.

Get Transaction

Retrieve the latest version of one Anrok transaction, including complete invoice and tax-calculation details for normal transactions.

List Customers

Return one page of seller-account customers in ascending customer ID order.

List Exemption Certificates

Return one page of exemption certificates, optionally filtered by customer or certificate status.

List Filings

Return one premium page of jurisdiction filings, optionally filtered by jurisdiction and filing-period end date range.

List Filing Transaction IDs

Return one premium page of transaction IDs associated with a jurisdiction filing.

List Filing Transactions with Conversion Rates

Return one premium page of a jurisdiction filing's transactions with their filing conversion rates.

List Product ID Mappings

List all source-to-Anrok product ID mappings for one Anrok-built billing integration.

List Products

Return one page of Anrok products, optionally including default and integration shipping products.

List Product Tax Categories

List the standard and seller-specific product tax categories available for assigning to products.

List Transactions

Return one premium page of Anrok transactions, optionally filtered by modification time or filing association.

Remove Transactions from Filing

Remove 1-100 transactions from a premium Anrok jurisdiction filing and return the removal result for every requested transaction ID.

Resolve Address

Resolve a customer address to its normalized form and return the applicable taxable jurisdictions.

Validate Tax IDs

Validate premium customer tax IDs for the taxable jurisdictions resolved from a customer address.

Void Transaction

Void an existing transaction so it is no longer included in returns or sales totals, optionally requiring its current version.

FRAMEWORKS

How to build Anrok MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Anrok MCP with ChatGPT

Hermes logo

Hermes

Use Anrok MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Anrok MCP with Atomic Agent

FAQ

Frequently asked questions

With a standalone Anrok MCP server, the agents and LLMs can only access a fixed set of Anrok tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Anrok and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Anrok tools.

Yes, absolutely. You can configure which Anrok scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Anrok data and credentials are handled as safely as possible.

Start with Anrok.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Anrok tool your agent needs.Free to start.

Start building