# How to connect Anrok with ChatGPT

```json
{
  "title": "How to connect Anrok with ChatGPT",
  "toolkit": "Anrok",
  "toolkit_slug": "anrok",
  "framework": "ChatGPT",
  "framework_slug": "chatgpt",
  "url": "https://composio.dev/toolkits/anrok/framework/chatgpt",
  "markdown_url": "https://composio.dev/toolkits/anrok/framework/chatgpt.md",
  "updated_at": "2026-11-12T05:31:53.425Z"
}
```

## Introduction

### How to connect Anrok MCP with ChatGPT
[ChatGPT](https://chatgpt.com/) can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.
In this guide, I will explain the easiest and most secure way to connect your Anrok account to ChatGPT via Composio Connect, so it can calculate sales tax, review transactions, manage exemptions, check filing data, and support compliance work through natural language commands without ever putting your account credentials at risk.

## Also integrate Anrok with

- [Claude Cowork](https://composio.dev/toolkits/anrok/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/anrok/framework/hermes-agent)
- [Atomic Agent](https://composio.dev/toolkits/anrok/framework/atomic-agent)

## TL;DR

### Why use Composio over default connectors?
- Apps with read and write access. Default connectors mostly can read your data. Composio's Anrok integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
- 1,700+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
- One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
- Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
- Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

## Connect Anrok to ChatGPT

### Prerequisites
- A ChatGPT account. We will use the [ChatGPT desktop app](https://openai.com/chatgpt/download/), and the steps are the same on the web.
- Access to the Anrok workspace you want to connect.
- [Composio plugin](https://dashboard.composio.dev/login?cta_placement=toolkit-framework-chatgpt-composio-connect&next=%2F~%2Forg%2Fconnect%2Fclients%2Fchatgpt).
Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.
### Step-by-step: Connect Anrok to ChatGPT
### 1. Install the Composio plugin
Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.
[Install in ChatGPT](https://chatgpt.com/plugins/plugin_asdk_app_6a58503580c08191b78cc5bdaf4eba6e)
You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.
### 2. Authenticate
After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.
### 3. Start using Composio
That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread Anrok messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize Anrok.
### Option 2: Add Composio as an MCP server
If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.
### 1. Open the MCP settings
In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.
### 2. Add the server
Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

```bash
https://connect.composio.dev/mcp
```

## What is the Anrok MCP server, 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.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `ANROK_ADD_PRODUCT_ID_MAPPING` | Add Product ID Mapping | Map a billing integration's source product ID to an existing Anrok product, optionally overwriting an existing source mapping. |
| `ANROK_ARCHIVE_EXEMPTION_CERTIFICATE` | Archive Exemption Certificate | Archive and invalidate an exemption certificate by its Anrok certificate ID. Anrok does not document a restore operation. |
| `ANROK_CALCULATE_TRANSACTION_TAX` | Calculate Transaction Tax | Calculate tax for an ephemeral invoice without recording a transaction in Anrok. |
| `ANROK_CREATE_CUSTOMER` | Create Customer | Create an Anrok customer with the external ID used to link transactions and exemption certificates. |
| `ANROK_CREATE_EXEMPTION_CERTIFICATE` | Create Exemption Certificate | Create a customer tax-exemption certificate from a local or uploaded file and jurisdiction coverage. Raw files are capped at 4 MB to keep the encoded request within host payload limits. Supplying a customer name may also create a missing customer. |
| `ANROK_CREATE_EXEMPTION_CERTIFICATE_REQUEST` | Create Exemption Certificate Request | Create a premium customer certificate request, emailing its submission link by default, and optionally auto-approve eligible submissions. Supplying a customer name may also create a missing customer. |
| `ANROK_CREATE_OR_UPDATE_TRANSACTION` | Create or Update Transaction | Create a finalized invoice transaction. If a transaction with the same seller-wide ID exists, overwrite or replace it with the supplied invoice data and recalculate tax. Supplying a customer name with a customer ID may also create a missing customer. |
| `ANROK_CREATE_PRODUCT` | Create Product | Create an Anrok product ID and assign its product tax category. |
| `ANROK_CREATE_TRANSACTION_NEGATION` | 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. |
| `ANROK_GET_CUSTOMER` | Get Customer | Retrieve one Anrok customer by its external customer ID. |
| `ANROK_GET_EXEMPTION_CERTIFICATE` | Get Exemption Certificate | Retrieve one exemption certificate and its status and jurisdiction details by certificate ID. |
| `ANROK_GET_PRODUCT` | Get Product | Retrieve one Anrok product by its external product ID. |
| `ANROK_GET_TRANSACTION` | Get Transaction | Retrieve the latest version of one Anrok transaction, including complete invoice and tax-calculation details for normal transactions. |
| `ANROK_LIST_CUSTOMERS` | List Customers | Return one page of seller-account customers in ascending customer ID order. |
| `ANROK_LIST_EXEMPTION_CERTIFICATES` | List Exemption Certificates | Return one page of exemption certificates, optionally filtered by customer or certificate status. |
| `ANROK_LIST_FILINGS` | List Filings | Return one premium page of jurisdiction filings, optionally filtered by jurisdiction and filing-period end date range. |
| `ANROK_LIST_FILING_TRANSACTION_IDS` | List Filing Transaction IDs | Return one premium page of transaction IDs associated with a jurisdiction filing. |
| `ANROK_LIST_FILING_TRANSACTIONS_WITH_CONVERSION_RATES` | List Filing Transactions with Conversion Rates | Return one premium page of a jurisdiction filing's transactions with their filing conversion rates. Rates may change until the filing is finalized. |
| `ANROK_LIST_PRODUCT_ID_MAPPINGS` | List Product ID Mappings | List all source-to-Anrok product ID mappings for one Anrok-built billing integration. |
| `ANROK_LIST_PRODUCTS` | List Products | Return one page of Anrok products, optionally including default and integration shipping products. |
| `ANROK_LIST_PRODUCT_TAX_CATEGORIES` | List Product Tax Categories | List the standard and seller-specific product tax categories available for assigning to products. |
| `ANROK_LIST_TRANSACTIONS` | List Transactions | Return one premium page of Anrok transactions, optionally filtered by modification time or filing association. |
| `ANROK_REMOVE_TRANSACTIONS_FROM_FILING` | Remove Transactions from Filing | Remove 1-100 transactions from a premium Anrok jurisdiction filing and return the removal result for every requested transaction ID. This cannot be undone; Anrok documents no restore operation. |
| `ANROK_RESOLVE_ADDRESS` | Resolve Address | Resolve a customer address to its normalized form and return the applicable taxable jurisdictions. |
| `ANROK_VALIDATE_TAX_IDS` | Validate Tax IDs | Validate premium customer tax IDs for the taxable jurisdictions resolved from a customer address. |
| `ANROK_VOID_TRANSACTION` | Void Transaction | Void an existing transaction so it is no longer included in returns or sales totals, optionally requiring its current version. This cannot be undone; Anrok documents no restore or unvoid operation. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

Once connected, ChatGPT can access the Anrok MCP server via Composio to run actions that you authorize, directly in your workspace.

## Complete Code

None listed.

## How to build Anrok MCP Agent with another framework

- [Claude Cowork](https://composio.dev/toolkits/anrok/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/anrok/framework/hermes-agent)
- [Atomic Agent](https://composio.dev/toolkits/anrok/framework/atomic-agent)

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## Frequently Asked Questions

### What are the differences in Tool Router MCP and Anrok MCP?

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.

### Can I use Tool Router MCP with ChatGPT?

Yes, you can. ChatGPT 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.

### Can I manage the permissions and scopes for Anrok while using Tool Router?

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.

### How safe is my data with Composio Tool Router?

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.

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