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QuickBooks DesktopAPIintegration&MCPserver

Deliver real-time Accounting faster, close sales deals sooner, and scale without an integration backlog.

Add QuickBooks Desktop to your app See feature support

Try free for 30 days, no credit card required

Add QuickBooks Desktop and 45 other pre-built Accounting integrations

Real-time data to fuel countless Accounting use cases

Power AI copilots, insights, predictive analysis, and automation with a modern integration infrastructure that scales alongside you.

accounting

Access Financial Data

Pull financial data to support insights and ROI calculations.

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accounting

Automate Invoicing

Sync accounting software with payment gateways for automated invoicing.

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accounting

Track Expenses

Aggregate and monitor business expenses in real time.

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ACCOUNTING Invoice

COMMERCE Item

COMMERCE Location

ACCOUNTING Account

ACCOUNTING Journal

ACCOUNTING Contact

ACCOUNTING Bill

ACCOUNTING Creditmemo

ACCOUNTING Purchaseorder

HRIS Employee

ACCOUNTING Expense

ACCOUNTING Category

HRIS Timeshift

Payment

ACCOUNTING Invoice

COMMERCE Item

COMMERCE Location

ACCOUNTING Account

ACCOUNTING Journal

ACCOUNTING Contact

ACCOUNTING Bill

ACCOUNTING Creditmemo

ACCOUNTING Purchaseorder

HRIS Employee

ACCOUNTING Expense

ACCOUNTING Category

HRIS Timeshift

Payment

Your customer's data

on QuickBooks Desktop

Unified API data-models and methods

ACCOUNTING Invoice

remove create

COMMERCE Item

remove create

COMMERCE Location

create remove

ACCOUNTING Account

create remove

ACCOUNTING Journal

create remove

ACCOUNTING Contact

remove create

ACCOUNTING Bill

create remove

ACCOUNTING Creditmemo

create remove

ACCOUNTING Purchaseorder

remove create

HRIS Employee

create remove

ACCOUNTING Expense

remove create

ACCOUNTING Category

create remove

HRIS Timeshift

create remove

Payment

create remove

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The modern Unified API+MCP platform, built differently

Real-time, pass-through

Every request hits the source API live. No caching, no sync jobs, no stale data — just on-demand API reads/writes with native and virtual webhooks for instant updates.

Zero-storage by design

We never store end-customer data. Traffic is stateless and regionalized (US/EU/AU), reducing compliance scope and eliminating data-at-rest risk.

Unified APIs, deeply normalized

450+ integrations, 27 categories... Unified objects, endpoints, scopes, and errors—plus raw payload passthrough when you need integration-specific fields.

Custom fields & objects

Go beyond shallow schemas. We support custom fields and read/write on custom objects (e.g., Salesforce) via unified metadata APIs.

AI-ready integrations

Built for AI products: feed real-time data into embeddings or RAG pipelines, and let your agents perform secure write actions through MCP—all without caching or stale sync jobs.

Predictable pricing, no lock-in

Transparent usage-based pricing that scales with API volume—not customers. Own your credentials and migrate anytime.

Add a QuickBooks Desktop integration to your application in hours

1Test drive integrations

Effortlessly test API calls, explore endpoints, and try out the QuickBooks Desktop integration using synthetic data in our Sandbox environment.

2Authorize connections

Drop in our Authorization component with a single line of code. Your users can then connect and grant access to their QuickBooks Desktop data.

3Start making API calls

Use the Connection ID to interact with QuickBooks Desktop via our unified API. We handle maintenance and updates so you can focus on your product.

Seamless authorization, no extra work

Unified removes the complexity of integration authorization so you can focus on building your product, not managing OAuth flows. Our pre-built UI and flexible API handle everything in the background—no extra setup required.

See documentation

React

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Trusted by global product companies and developers to power integrations for innovative AI and SaaS applications

5 stars on G2

Integrate with all the major accounting applications

Unified.to makes it possible to integrate once to a unified API to connect with all the applications your customers use, so you can train AI models, build advanced automation, and expand your market.

Start testing for free