Twinfield API
The facts below are what the maker publishes about Twinfield API, checked and dated. Our editors have not written about it yet.
Plans and prices
From Twinfield API's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Extra Boekhouden | €58 a month | 1 user · 5 administrations · Integrations with 300+ applications · Standard reports · € 58,- per maand |
| MKB Boekhouden | €78.50 a month | 1 user · 5 administrations · Integrations with 300+ applications · 38 reports · € 78,50 per maand |
| Compleet Boekhouden | €114.50 a month | 1 user (modular) · 5 administrations (modular) · Integrations with 300+ applications · € 114,50 per maand |
The facts
Each one read from Twinfield API's own pages, with the date it was checked.
What it does
- Accounting operations
- Available API operations include maintaining transactions, customers, suppliers, invoices, bank statements, budgets, payments, and dimensions.checked 7 Oct 2026
- Accounting tiers
- API functions vary by Twinfield user level; sales invoice creation is available at Complete and SME Accounting levels but not Bookkeeping Plus or Basic Bookkeeping.checked 7 Oct 2026
- Authentication
- Twinfield uses OpenID Connect for identity information and OAuth 2.0 for authentication, with implicit and authorization code flows supported.checked 7 Oct 2026
- Certification and support
- Twinfield requires integrations to be certified and describes a continuing API subscription that includes certification, API support, and Developer Portal access.checked 7 Oct 2026
- Concurrency limit
- The API allows up to 20 concurrent requests per ClientId and 10 per ClientId and organisation combination.checked 7 Oct 2026
- Data retrieval
- Browse data can retrieve financial information such as general ledger transactions and sales invoices.checked 7 Oct 2026
- Integrations
- Twinfield Bookkeeping says it connects with more than 300 different systems, and integrations must be certified to join its partner community.checked 7 Oct 2026
- Intended users
- Twinfield describes its accounting software and API integrations as serving advisors and businesses, with features for collaborative accounting and linking business systems.checked 7 Oct 2026
- Payload limit
- Twinfield recommends no more than 25 child elements per parent and 500 transaction or invoice lines; each transaction has a hard limit of 1,000 lines.checked 7 Oct 2026
- Purpose
- The API provides developers with access to Twinfield accounting data and web services.checked 7 Oct 2026
- Rate limits
- Certified integrations have a 1,000 API credit per minute ClientId bucket and 500 credit per minute per ClientId and organisation combination; new uncertified ClientIds receive 5% of those amounts.checked 7 Oct 2026
- Security and compliance
- The API terms say Wolters Kluwer processes personal data in accordance with applicable privacy law including GDPR and takes technical and organisational measures to protect it.checked 7 Oct 2026
- Transport security
- Twinfield API supports TLS 1.2 and 1.3; TLS 1.0 and 1.1 have been retired.checked 7 Oct 2026
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