Exact API
Exact Online has a public REST API with OAuth 2.0 apps registered via its App Center, spanning accounting, sales, purchasing, HRM, inventory, and webhooks. Registration is self-serve; public apps need Exact review before connecting beyond your own tenant.
Frequently asked questions
Exact scores A+ on the API Report Card. Exact Online has a public REST API with OAuth 2.0 apps registered via its App Center, spanning accounting, sales, purchasing, HRM, inventory, and webhooks. Registration is self-serve; public apps need Exact review before connecting beyond your own tenant.
Exact has a workable official integration path. Most engineering teams can build against it directly. Open API: self-serve, documented, with SDKs
Exact is a Dutch business-software company headquartered in Delft, Netherlands, founded in 1984.
Vertical: Accounting / Tax / Audit. Sub-vertical: Dutch/Benelux SMB accounting and ERP, with a strong cross-sell into accountancy firm practice management. General ledger, journal entries, chart of accounts, period closes, and trial balance for SMBs and accountancy clients.
Very high within the Netherlands and Belgium (default SMB accounting brand, deeply embedded with Dutch accountancy firms and banks); moderate-to-high in DACH, UK, France, Spain; low-to-moderate in North America (mainly via Exact Macola for manufacturing).
General ledger journals, transactions, period balances, and chart of accounts per division. Sales invoices, sales orders, quotations, customer master data, and AR balances. Purchase invoices, purchase orders, supplier master data, and AP balances.
Exact was founded in 1984; the on-premise Exact Globe + Synergy product line is decades-old (Win32-era roots, modern .NET layers added over time, REST web services bolted on top).
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.