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Accounting API One single API to build Accounting integrations
Apideck gives Vertical SaaS and B2B Fintech companies one unified API to launch integrations in weeks.
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Manage your integrations
Dropbox
File Storage API
Disabled
Pipedrive
CRM API
QuickBooks
Accounting API
Teamleader
CRM API
Twilio
SMS API
OAuth, token handling & connection management.
All done for you.
Our easily embedded white-label interface gives users a simple and secure connection experience.
Accounting API connectors ⚡️
We build and maintain connectors, so you don't have to. View our full list of Accounting connectors.
Missing a connector? We're able to add new connectors.
Access Financials
live
Acumatica
live
AFAS Software
live
Alegra
live
banqUP
live
Campfire
live
Clear Books
live
DATEV
upcoming
DATEV Unternehmen Online
live
Digits
live
Dualentry
live
Exact Online
liveExact Online NL
liveExact Online UK
live
Fortnox
live
FreeAgent
live
FreshBooks
live
Holded
live
Intuit Enterprise Suite
live
Kashflow
live
Microsoft Dynamics 365 Business Central
live
Moneybird
live
MRI Software
live
MYOB
live
MYOB Acumatica
live
NetSuite
live
Odoo
live
Oracle Fusion Cloud
upcoming
Pennylane
live
Procountor
live
QuickBooks
liveQuickBooks Desktop
live
QuickBooks Enterprise
live
Rillet
live
Sage Business Cloud Accounting
live
Sage Intacct
live
SAP S/4HANA Cloud
live
SnelStart
upcoming
Spiris
live
Stripe
live
Visma eAccounting
live
Visma Netvisor
live
Wafeq
live
Wave
live
Workday
live
Xero
live
Yuki
live
Zoho Books
liveAccounting API Resources
One unified schema for all your accounting data. Explore the available resources organized by use case.
Financial Documents
Create and manage invoices, bills, and quotes
Payments & Banking
Process payments and manage bank accounts
Accounting & Ledger
Chart of accounts and journal entries
Financial Reports
Balance sheets, P&L, and aging reports
Organization
Company structure and settings
Products & Categories
Items, services, and categorization
Other Resources
Additional API resources
What integrations can you build with the Accounting API?
Discover common integration patterns and use cases powered by our unified accounting data.
Accounts Payable
Sync vendor bills, approvals & payments across accounting systems in real time.
Accounts Receivable
Push invoices, payment statuses & credits into users' ledgers.
Business Lending
Use accounting data to get smarter risk assessments and lending decisions.
Expense Management
Pull data to automate spend reporting and reconciliation.
Bank Feeds
Push bank transactions into accounting platforms for automated reconciliation and bookkeeping.
Payment Reconciliation
Match payments to invoices and bank transactions across accounting systems for automated, real-time reconciliation.
FP&A
Pull real-time financial data for budgeting, forecasting, and financial analysis.
Payroll Accounting
Streamline payroll data flow between HR systems and accounting platforms seamlessly.
Procurement
Automate purchase orders, vendor management, and spend tracking across ERP and accounting systems.
Tax Automation
Connect to accounting data to accurately calculate, file, and reconcile sales tax.
Carbon Accounting
Embed sustainability metrics by syncing financial data for carbon footprint tracking and ESG reporting.
Debt Collections
Automate collections workflows with real-time visibility into outstanding invoices, aged receivables, and payment status.
AI Agents for Fintech
Connect AI agents to 200+ financial apps via MCP. AP automation, AR collections, bank reconciliation, and more.
What is an accounting API?
An accounting API is a programmatic interface for reading and writing financial data such as invoices, bills, journal entries, ledger accounts, payments and reports from accounting platforms.
A unified accounting API goes further by mapping one canonical data model and a single authentication flow to many accounting systems at once, so you build one integration instead of one per platform.
Apideck’s Accounting API connects to 48+ accounting systems, including QuickBooks, Xero, NetSuite, Sage Intacct, Exact Online, Odoo, through one canonical data model and a single set of endpoints.
Unified accounting API vs. building direct integrations
What changes when you connect once through a unified API instead of building and maintaining a separate integration for each accounting platform.
| Apideck unified Accounting API | Building direct integrations | |
|---|---|---|
| Integration setup | One integration covers every connected accounting system. | A separate build for each platform, each with its own API. |
| Data model | One canonical schema normalizes fields across all systems. | Different data models, taxonomy and pagination per platform. |
| Authentication | A single OAuth, token handling and connection flow, done for you. | A separate auth strategy and token handling per platform. |
| Maintenance | Apideck absorbs upstream API changes and version updates. | Your team tracks and fixes breaking changes on every platform. |
| Adding coverage | Add new accounting systems without writing new code. | Engineering effort grows with each platform you add. |
| Time to launch | Launch accounting integrations in weeks. | Months of engineering per platform. |
The shift toward open accounting means businesses increasingly expect their financial data to be accessible through APIs — making unified accounting integrations essential for SaaS products.
A new way of building
Accounting integrations
Accounting Integrations in hours – not weeks. Simplify integration development by using a normalized Accounting API with the most popular Accounting software.
Traditional integration development
Building APIs on a one-to-one basis can be a challenge. A lack of standardized APIs makes it difficult to scale your integration strategy. Maintaining them can even be a bigger challenge.
- Juggle with different API styles
- Fragmented taxonomy
- Limited amount of documentation
- Different auth strategies
- Different pagination styles
- Plethora of data models
The Apideck Unify approach
Use our production-ready unified APIs to bring your integrations to market. The Apideck Unify technology maps the most complex APIs to a common data model, to speed up integration.
- Data normalisation & field-level extensions
- Consistent developer experience
- API Augmentation & smart endpoints
- Open-source and extendible
- Unified pagination
- One canonical data model
- Fast-growing ecosystem
- Virtualized and native webhooks
Centralized logging across all integrations
No more guessing. We log every request, response and webhook across your integrations so you know exactly what's happening and where.
- Get integration health insights across all customers
- Drill into specific logs to diagnose issues quickly
- Reduce support time and improve reliability for your users
Request Logs
The operating system for building and showcasing integrations
Pre-made building blocks to get started with Apideck.
Develop faster with our SDKs
You can use the official Apideck SDKs to simplify integrating our APIs.
MCP Server
Hosted MCP server that gives AI agents secure access to 200+ apps across every Unified API.
Apideck CLI
Query 200+ SaaS APIs from your terminal or any agent runtime that can execute a shell command.
Node.js SDK
The official Node.js SDK supports all the Unify API endpoints.
TypeScript SDK
The official TypeScript SDK with full type definitions for all endpoints.
PHP SDK
The official PHP SDK supports all the Unify API endpoints.
.NET
The official .NET SDK supports all the Unify API endpoints.
Python SDK
The official Python SDK supports all the Unify API endpoints.
Java SDK
The official Java SDK supports all the Unify API endpoints.
Go SDK
The official Go SDK supports all the Unify API endpoints.
Accounting API FAQ
Common questions about the Accounting API and unified integrations