Accounting, Invoicing & Finance APIs

Accounting, Invoicing & FinanceOracle NetSuite API

Oracle NetSuite API

ERP, Finance, Supply Chain, CRM REST/SOAP API (SuiteTalk) Target Users: Mid-to-Large Enterprises, Applications needing full business operation data integration.

Accounting, Invoicing & FinanceENCODED

Single API for Accounting, Banking, Ecommerce Data

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Accounting, Invoicing & FinanceIntuit QuickBooks Online API

Intuit QuickBooks Online API

Financial Transactions, Invoices, Customers, Vendors, General Ledger REST API Target Users: Enterprises of all sizes, applications needing integration with US-dominant accounting systems.

Accounting, Invoicing & FinanceFreshBooks API

FreshBooks API

Focuses on Invoices, Time Tracking, Expense Management REST API Target Users: Freelancers, small businesses, service-based professionals.

Accounting, Invoicing & FinanceSage (Sage Intacct, Sage Accounting) API

Financial Mgmt, AP/AR, General Ledger

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Accounting, Invoicing & FinancePlaid

Plaid

Connect Bank Accounts, Verify Balances, Transfers (North America & Europe) REST API Target Users: Fintech apps, personal finance, payment/transfer services.

Accounting, Invoicing & FinanceSage (Sage Intacct, Sage Accounting) API

Sage (Sage Intacct, Sage Accounting) API

Financial Management, AP/AR, General Ledger REST/SOAP API Target Users: Growing and large enterprises, complex financial reporting and multi-entity management.

Accounting, Invoicing & FinanceZoho Books API

Zoho Books API

Accounts, Invoices, Inventory, Purchase Orders REST API Target Users: Enterprises using Zoho Ecosystem, seeking high value all-in-one solution.

Accounting, Invoicing & FinanceENCODED

ENCODED

Single API connecting multiple accounting, banking, e-commerce platform data Unified API Target Users: Fintech Companies, Lending Platforms, Applications needing Customer Real-time Financial Data.

Accounting, Invoicing & FinanceOracle NetSuite API

ERP, Finance, Supply Chain, CRM

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Accounting, Invoicing & FinanceXero API

Xero API

Invoices, Bills, Bank Feeds, Payroll REST API Target Users: SMBs, especially with strong influence in UK, Australia, NZ markets.

Accounting, Invoicing & FinanceMicrosoft Dynamics 365 API

Microsoft Dynamics 365 API

Finance & Operations (ERP), CRM REST API Target Users: Global Large Enterprises using the Microsoft Ecosystem.

Accounting, Invoicing & FinanceMicrosoft Dynamics 365 API

Finance & Operations

Discover how to deploy, customize, manage, and use Microsoft Dynamics 365 services and applications. Find documentation, training, sample code, tutorials, and more.

Accounting, Invoicing & FinanceMerge.dev

Merge.dev

Unified API connecting multiple Accounting/HRIS/CRM systems Unified API Target Users: SaaS product companies needing fast integration with multiple backend systems.

Accounting, Invoicing & FinancePlaid

Connect Bank Accounts, Verify Balances, Transfers

Here you'll find guides, resources, and references to build with Plaid.