How to integrate Quickbooks MCP with Grok Build

Connect Grok Build to Quickbooks MCP. Add a new customer with contact details, generate a balance report for customer abc, and more from your terminal, with authentication handled for you.

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Quickbooks is cloud-based accounting software for managing your business finances. It helps you track income, expenses, and gain insights to streamline your workflow.

105 Tools

How to integrate Quickbooks MCP with Grok Build

Grok Build is xAI's terminal coding agent. It runs on Grok 4.5, plans its work before it acts, and can run multiple sub-agents in parallel. It also reads Claude Code's MCP configuration, so any server you already have in a .mcp.json is picked up with no changes.

In this guide, I will show you how to connect your Quickbooks account to Grok Build through Composio, so it can add a new customer with contact details, generate a balance report for customer ABC, create a vendor for monthly office supplies, and more without leaving the terminal. Composio holds the OAuth tokens for you, and Grok Build only calls the tools you approve.

Also integrate Quickbooks with

Why use Composio over a standalone MCP server?

  • Read and write access. Composio's Quickbooks integration lets Grok Build take real actions like creating drafts, sending updates, and labeling records, not just reading data.
  • 1,000+ SaaS toolkits out of the box. One endpoint gives you a full catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Wire up a single Composio server instead of maintaining a separate MCP entry for each app.
  • Smart, context-aware tool loading. Grok Build caps how many tools it holds in a single request. Composio loads only the tools a task needs, so you do not spend that budget on tools you are not using.
  • Cross-app automation. Chain actions across apps in one run. Pull a thread, summarize it in Notion, and post the highlights to Slack from a single prompt.

Prerequisites

  • Grok Build installed and signed in. Install with curl -fsSL https://x.ai/cli/install.sh | bash on macOS or Linux, or irm https://x.ai/cli/install.ps1 | iex on Windows PowerShell. On first launch Grok opens a browser to authenticate; for headless or CI use, set an XAI_API_KEY environment variable instead (create the key at console.x.ai).
  • Access to the Quickbooks account you want to connect.
  • The Composio MCP endpoint. Composio's server is remote and hosted, so there is nothing to run locally and no tunnel to set up.

Step-by-step: Connect Quickbooks to Grok Build

1. Install and verify Grok Build

Install the CLI, then restart your shell so the grok binary lands on your PATH:

bash
curl -fsSL https://x.ai/cli/install.sh | bash
which grok

On Windows, install with PowerShell instead: irm https://x.ai/cli/install.ps1 | iex. If which grok returns a path, you are set. Grok Build runs on Grok 4.5 by default; you can switch models inside the session with /model <name>.

2. Add the Composio server

Add Composio as a remote HTTP MCP server with the grok mcp add command:

bash
grok mcp add --transport http composio https://connect.composio.dev/mcp

You can also add and manage servers from inside a session. Run /mcps to open the extensions modal on the MCP tab, then add a new server and paste the Composio URL. Added this way, Grok auto-detects the name from the URL and lists the server as connect:

bash
https://connect.composio.dev/mcp
Grok Build /mcps extensions modal listing MCP servers Grok Build adding the Composio MCP server with its URL

Grok also reads Claude Code-style config, so an entry in ~/.grok/config.toml or a project .mcp.json works the same way.

3. Authenticate

Composio uses OAuth. In the /mcps modal, select the Composio server and press i to authenticate (Grok also triggers this browser flow automatically the first time it uses a Composio tool). Click Allow to authorize access. Grok stores the tokens under ~/.grok/mcp_credentials.json, and /mcps shows Composio as connected.

Grok Build prompting to authenticate the Composio MCP server Composio authorization screen with the Allow button for Grok Build

4. Start building

Ask Grok to work with your Quickbooks account through Composio. On the first Quickbooks action, Composio prompts you to connect the account through OAuth. Approve the scopes once, and Composio handles token refresh from there.

What you can do after connecting Quickbooks

  • Add a new customer with contact details
  • Generate a balance report for customer ABC
  • Create a vendor for monthly office supplies
  • Read details of employee John Smith

Security + privacy notes (important)

  • Use least-privilege access. Grant only the Quickbooks scopes you actually need.
  • Review OAuth scopes before approving. Check that the requested scopes match what you expect Composio and Grok Build to do.
  • Keep write actions human-reviewed. Grok Build proposes a plan before it acts. Leave that approval step on for actions like sending messages or editing records.
  • Keep secrets out of version control. Your XAI_API_KEY and any tokens should never be committed. Use environment variables or a secrets manager.
TOOLS

Supported Tools

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

Capture Charge

Tool to capture funds for an existing charge that was authorized but not captured.

Create Account

Create a new account in QuickBooks with the given parameters.

Create Bank Account

Create a new bank account on file for a customer in QuickBooks Payments API.

Create Bill

Create a new bill in QuickBooks Online.

Create Bill Payment

Create a bill payment in QuickBooks to record payment against one or more bills.

Create Class

Create a new class in QuickBooks Online.

Create Credit Memo

Tool to create a new credit memo in QuickBooks Online.

Create Customer

Create a new customer in QuickBooks with the given parameters.

Create Deposit

Creates a new deposit in QuickBooks Online.

Create eCheck Payment

Tool to create an eCheck payment using ACH bank transfer in QuickBooks Payments API.

Create Employee

Create a new employee in QuickBooks.

Create Estimate

Creates a new estimate in QuickBooks Online.

Create Invoice

Creates a new invoice in QuickBooks for a customer.

Create Item

Create a new item in QuickBooks Online.

Create Journal Entry

Tool to create a new journal entry in QuickBooks Online.

Create Payment

Creates a payment record in QuickBooks Online.

Create Purchase

Tool to create a new purchase transaction in QuickBooks Online.

Create Purchase Order

Create a new purchase order in QuickBooks.

Create Refund Receipt

Tool to create a new refund receipt in QuickBooks Online.

Create Sales Receipt

Tool to create a new sales receipt in QuickBooks Online.

Create Tax Agency

Create a new tax agency in QuickBooks Online.

Create Tax Code via TaxService

Create a new tax code with associated tax rates using the TaxService endpoint.

Create Time Activity

Create a new time activity record in QuickBooks Online.

Create Vendor

Create a new vendor in QuickBooks with the given details.

Create Vendor Credit

Tool to create a new vendor credit in QuickBooks Online.

Customer Balance Detail

Generate a balance detail report for a customer in QuickBooks with the given customer ID.

Customer Balance Report

Generate a customer balance report in QuickBooks showing outstanding balances for customers.

Delete Bank Account

Tool to delete a bank account on file for a customer in QuickBooks Payments API.

Execute Batch Operation

Execute multiple QuickBooks operations in a single request.

Aged Receivables Report

Generate an aged receivables report showing outstanding customer balances by age.

Get Attachable

Tool to read details of a specific attachable by ID in QuickBooks Online.

Get Balance Sheet Report

Generate a Balance Sheet report showing company assets, liabilities, and equity at a point in time.

Get Bank Account

Tool to retrieve a specific bank account by ID from QuickBooks Payments API.

Get Bill

Tool to fetch a QuickBooks bill by ID.

Get Bill Payment

Tool to retrieve details of a specific bill payment by ID in QuickBooks Online.

Get Changed Entities

Tool to retrieve entities that changed since a specified timestamp using QuickBooks Change Data Capture (CDC) API.

Get Company Info

Tool to read company information from QuickBooks Online.

Get Credit Memo

Tool to fetch a QuickBooks credit memo by ID.

Get Credit Memo PDF

Tool to download a QuickBooks credit memo as a PDF file.

Get Department

Read details of a specific department by ID in QuickBooks Online.

Get Deposit

Tool to read details of a specific deposit by ID in QuickBooks Online.

Get Estimate

Tool to fetch a QuickBooks estimate by ID.

Get Estimate PDF

Tool to download a QuickBooks estimate as a PDF file.

Get Exchange Rate

Tool to get exchange rate for a specific currency code and date in QuickBooks Online.

Get General Ledger Report

Generate a General Ledger report showing all transactions with debits, credits, and running balances.

Get Inventory Valuation Summary

Generate an Inventory Valuation Summary report showing inventory quantities and their current values.

Get Invoice PDF

Tool to download a QuickBooks invoice as a PDF file.

Get Item

Tool to retrieve a specific item by its ID from QuickBooks Online.

Get Journal Entry

Tool to read details of a specific QuickBooks journal entry by ID.

Get Payment

Tool to fetch details of a specific payment by ID in QuickBooks Online.

Get Payment Method

Read details of a specific payment method by ID in QuickBooks Online.

Get Payment PDF

Tool to download a QuickBooks payment record as a PDF file.

Get Company Preferences

Tool to read company preferences that control application behavior in QuickBooks Online.

Get Profit and Loss Detail Report

Generate a detailed Profit and Loss report showing company income and expenses with transaction-level details.

Get Profit and Loss Report

Generate a Profit and Loss report showing company income and expenses over a period.

Get Purchase

Tool to fetch details of a specific purchase by ID in QuickBooks Online.

Get Purchase Order

Tool to fetch a QuickBooks purchase order by ID.

Get Purchase Order PDF

Tool to download a QuickBooks purchase order as a PDF file.

Get Refund Receipt

Tool to fetch a QuickBooks refund receipt by ID.

Get Refund Receipt PDF

Tool to download a QuickBooks refund receipt as a PDF file.

Get Report - Account List

Retrieve the AccountList report from QuickBooks showing a list of all accounts.

Get Report - Aged Payable Detail

Generate an aged payable detail report showing aging detail for accounts payable.

Get Report - Aged Payables

Retrieve an Aged Payables aging summary report from QuickBooks showing outstanding vendor balances grouped by age.

Get Report - Aged Receivable Detail

Generate an aged receivable detail report showing aging detail for accounts receivable.

Get Report - Cash Flow

Generate a cash flow report in QuickBooks showing cash inflows and outflows categorized by operating, investing, and financing activities.

Get Report - Class Sales

Generate a ClassSales report in QuickBooks showing sales amounts grouped by class.

Get Report - Customer Income

Generate a customer income report in QuickBooks showing revenue by customer.

Get Report - Customer Sales

Generate a customer sales report in QuickBooks showing sales transactions and totals for customers.

Get Report - Department Sales

Generate a department sales report in QuickBooks showing sales data broken down by department.

Get Report - Item Sales

Generate an ItemSales report showing sales data for products and services.

Get Reports

Retrieve QuickBooks reports such as TransactionList, BalanceSheet, ProfitAndLoss, and others.

Get Report - Trial Balance

Generate a Trial Balance report showing account debits, credits, and balances for a specified period.

Get Sales Receipt

Tool to fetch a QuickBooks sales receipt by ID.

Get Sales Receipt PDF

Tool to download a QuickBooks sales receipt as a PDF file.

Get Tax Rate

Tool to read details of a specific tax rate by ID in QuickBooks Online.

Get Term

Read details of a specific payment term by ID in QuickBooks Online.

Get Time Activity

Tool to read details of a specific time activity by ID in QuickBooks Online.

Get Transaction List Report

Get the Transaction List report showing all transactions in the company.

Get Transfer

Tool to fetch a QuickBooks transfer by ID.

Get Vendor Credit

Tool to fetch a QuickBooks vendor credit by ID.

Get Vendor Expenses Report

Retrieve a vendor expenses report from QuickBooks showing expense transactions by vendor.

List Cards

Tool to retrieve all payment cards on file for a customer in QuickBooks Payments API.

List Departments

Query Department entities in QuickBooks using SQL-like syntax.

List Invoices

Tool to list invoices via QuickBooks Query endpoint.

Query Account Entities

Query Account entities in QuickBooks using SQL-like syntax.

Query Attachable Entities

Query Attachable entities in QuickBooks using SQL-like syntax.

Query QuickBooks Entities

Execute SQL-like queries on QuickBooks Online entities.

Read Account

Read an account in QuickBooks with the given account ID.

Read Class

Read details of a specific class by ID in QuickBooks Online.

Read Customer

Read a customer in QuickBooks with the given customer ID.

Read Employee

Read an employee's details in QuickBooks with the given employee ID.

Read Invoice

Tool to fetch a QuickBooks invoice by ID or the most recent if no ID provided.

Read Vendor

Read a vendor in QuickBooks with the given vendor ID.

Send Credit Memo

Tool to send a credit memo to a specified email address.

Update Attachable

Tool to update an existing attachable in QuickBooks Online.

Update Company Info

Tool to update company information in QuickBooks Online.

Update Department

Tool to update an existing department in QuickBooks Online.

Update Full Invoice

Tool to fully replace an Invoice.

Update Payment Method

Tool to update an existing payment method in QuickBooks Online.

Update Preferences

Update company preferences in QuickBooks Online.

Update Sparse Invoice

Tool to perform a sparse update of an existing invoice.

Update Term

Tool to update an existing payment term in QuickBooks Online.

Update Transfer

Tool to update an existing transfer in QuickBooks Online.

Vendor Balance Detail

Generate a balance detail report for a vendor in QuickBooks with the given vendor ID.

Vendor Balance Report

Retrieve a vendor balance report from QuickBooks showing outstanding balances for vendors.

FAQ

Frequently asked questions

A standalone Quickbooks MCP server gives Grok Build a fixed set of Quickbooks tools tied to that one server. The Composio Tool Router lets Grok Build load tools from Quickbooks and many other apps on demand, based on the task, all through a single endpoint.

Yes. Grok Build ships with native MCP support. Add a server with the grok mcp add command, from the in-session /mcps modal, or by editing ~/.grok/config.toml. It also reads Claude Code-style .mcp.json files, so Grok Build discovers the tools automatically.

Yes. Grok Build has zero-migration compatibility with Claude Code's configuration, so the same Composio server entry works in both without edits.

Tokens, keys, and configuration are encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant, so your Quickbooks data and credentials are handled to that standard.

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