Accounting OAuth 2.0

QuickBooks REST API

Accounting and financial management REST API

QuickBooks API provides programmatic access to accounting, invoicing, and financial management features. Developers use it to integrate QuickBooks' robust accounting capabilities into their applications, automate bookkeeping tasks, sync financial data, and build custom reporting solutions. The API supports comprehensive accounting operations including customers, invoices, payments, expenses, and tax management.

Base URL https://quickbooks.api.intuit.com/v3/company

API Endpoints

Method	Endpoint	Description
GET	`/company/{realmId}/invoice/{invoiceId}`	Retrieve details of a specific invoice by ID, including line items, customer reference, and payment status.
POST	`/company/{realmId}/invoice`	Create a new invoice for a customer with line items, tax calculations, and due date.
POST	`/company/{realmId}/customer`	Create a new customer record with contact details, billing address, and payment terms.
GET	`/company/{realmId}/query`	Execute SQL-like queries to retrieve data from QuickBooks entities using SELECT statements.
POST	`/company/{realmId}/payment`	Record a payment received from a customer, linking it to one or more invoices.
POST	`/company/{realmId}/bill`	Create a bill from a vendor with line items, due date, and accounts payable tracking.
GET	`/company/{realmId}/account/{accountId}`	Retrieve a specific chart of accounts entry including account type, balance, and classification.
POST	`/company/{realmId}/purchase`	Create a purchase transaction or expense with vendor details, payment method, and account allocation.
GET	`/company/{realmId}/companyinfo/{companyId}`	Get company profile and settings information including legal name, address, and fiscal year details.
POST	`/company/{realmId}/estimate`	Create a sales estimate or quote for a customer with line items and expiration date.
GET	`/company/{realmId}/reports/ProfitAndLoss`	Generate a profit and loss statement report for a specified date range with revenue and expense details.
POST	`/company/{realmId}/journalentry`	Create a manual journal entry for accounting adjustments with debit and credit line items.
GET	`/company/{realmId}/taxcode/{taxCodeId}`	Retrieve tax code information and rates including sales tax percentage and applicable jurisdictions.
POST	`/company/{realmId}/item`	Create a new product or service item with pricing, income account, and inventory tracking settings.
GET	`/company/{realmId}/reports/BalanceSheet`	Generate a balance sheet financial report showing assets, liabilities, and equity for a specified date.

Code Examples

curl -X GET \
  'https://quickbooks.api.intuit.com/v3/company/1234567890/query?query=SELECT * FROM Invoice WHERE Id = '123'' \
  -H 'Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...' \
  -H 'Accept: application/json'

const realmId = '1234567890';
const accessToken = 'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...';

const response = await fetch(
  `https://quickbooks.api.intuit.com/v3/company/${realmId}/invoice`,
  {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${accessToken}`,
      'Content-Type': 'application/json',
      'Accept': 'application/json'
    },
    body: JSON.stringify({
      Line: [{
        Amount: 100.00,
        DetailType: 'SalesItemLineDetail',
        SalesItemLineDetail: {
          ItemRef: { value: '1' }
        }
      }],
      CustomerRef: { value: '1' }
    })
  }
);

const invoice = await response.json();
console.log(invoice);

import requests

realm_id = '1234567890'
access_token = 'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...'

headers = {
    'Authorization': f'Bearer {access_token}',
    'Content-Type': 'application/json',
    'Accept': 'application/json'
}

response = requests.get(
    f'https://quickbooks.api.intuit.com/v3/company/{realm_id}/query',
    headers=headers,
    params={'query': 'SELECT * FROM Customer WHERE Active = true'}
)

customers = response.json()
print(customers)

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create_invoice Create and send invoices to customers with line items, tax calculations, and payment terms

query_financial_data Execute SQL-like queries to retrieve customers, invoices, payments, and other accounting data

record_expense Record business expenses and purchases with vendor information and categorization

generate_financial_report Generate profit & loss, balance sheet, and cash flow reports for specified date ranges

reconcile_payments Match and record customer payments against outstanding invoices and update balances

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QuickBooks REST API

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