Meet us at Rethink! Accounting / CFO on 20.-21. April in Frankfurt

Twinfield API Integration

Twinfield is a cloud accounting platform used by accounting firms and SMEs across the Netherlands, Belgium, and the UK. It is part of the Wolters Kluwer group and is particularly popular with accounting practices managing multiple client entities.

Integrate Twinfield ERP alongside dozens of other accounting and ERP systems through Maesn Unified API.

Integrate Twinfield and 30+ accounting systems with Maesn Unified API
Trusted by winning software teams
HubSpot – CRM platform using Maesn Unified ERP & Accounting APIIncaseof.law – legal tech SaaS using Maesn Unified ERP & Accounting APIMainteny – maintenance management SaaS using Maesn Unified ERP & Accounting APIPaywise – debt collection SaaS using Maesn Unified ERP & Accounting API
Finto – AI finance software using Maesn Unified ERP & Accounting APIDebtist – receivables management SaaS using Maesn Unified ERP & Accounting APIRally – financial SaaS using Maesn Unified ERP & Accounting APIProjo – project management SaaS using Maesn Unified ERP & Accounting API
Plancraft – construction SaaS using Maesn Unified ERP & Accounting APIClockin – time tracking SaaS using Maesn Unified ERP & Accounting APISyniotec – software using Maesn Unified ERP & Accounting APIImmocore – real estate SaaS using Maesn Unified ERP & Accounting API
Timecount – workforce scheduling SaaS using Maesn Unified ERP & Accounting APIGreyt – HR and payroll SaaS using Maesn Unified ERP & Accounting APIHero Software – field service SaaS using Maesn Unified ERP & Accounting APIDonnerstag.ai – AI productivity SaaS using Maesn Unified ERP & Accounting API
Nordhealth – healthcare SaaS using Maesn Unified ERP & Accounting APINoCFO – financial reporting SaaS using Maesn Unified ERP & Accounting APIROKET – finance SaaS using Maesn Unified ERP & Accounting APISmarta Steuern – tax automation SaaS using Maesn Unified ERP & Accounting API
SpendOne – spend management SaaS using Maesn Unified ERP & Accounting APIMajesty – SaaS using Maesn Unified ERP & Accounting APIImmocloud – real estate management SaaS using Maesn Unified ERP & Accounting APIQuid – financial SaaS using Maesn Unified ERP & Accounting API
Eturnity – energy software using Maesn Unified ERP & Accounting APICraftboxx – craft business SaaS using Maesn Unified ERP & Accounting APISyntinels – AI sales intelligence SaaS using Maesn Unified ERP & Accounting APITipalti – AP automation platform using Maesn Unified ERP & Accounting API
Lanes & Planes – travel management SaaS using Maesn Unified ERP & Accounting APIOrcha – digital health SaaS using Maesn Unified ERP & Accounting APITilta – embedded finance SaaS using Maesn Unified ERP & Accounting APIFindity – expense management SaaS using Maesn Unified ERP & Accounting API

Have a Twinfield
integration in days

Free Twinfield sandbox with Maesn.

Getting a Twinfield sandbox requires buying an instance. Maesn provides a sandbox immediately at no additional cost, so you can start building from day one.

Twinfield marketplace listing support

Twinfield's marketplace has 650+ listings and is a key channel for the Dutch and Belgian market. Maesn supports you through the individual qualification process to get your integration listed.

REST API instead of SOAP/XML with Maesn.

Twinfield uses SOAP/XML, cluster-specific routing, and strict multi-entity structures. Maesn supports you with technical, market-specific and compliance questions at every stage.

How Findity uses Maesn to embed compliant expense sync across accounting systems

Findity is an AI-powered expense management platform. They offer white-label and API solutions, enabling partners to embed fully branded expense technology directly into their own products.

"Maesn has helped us build integrations with accounting systems, allowing us to focus on other priorities in our roadmap. We are especially pleased with the support we have received whenever we needed extended functionality in an integration that Maesn has arranged for us."

Per Qvarforth - CEO at Findity

Per Q.

CTO @ Findity

5-star ranking at G2

One API for Twinfield and every system that comes after.

Unified. Certified. Production-ready.

Product teams ship integrations faster with Maesn

Twinfield REST API - no SOAP, no XML

Twinfield's primary API is SOAP-based and requires XML envelopeconstruction on every request. Maesn exposes Twinfield through a standard RESTinterface and handles all XML construction and parsing internally.

Full SOAP to REST abstraction by Maesn

No XML envelope construction required

Same REST interface as every other system

See documentation

Twinfield CompanyCode automatically injected per request.

Every Twinfield request requires a CompanyCode in the SOAP header. Maesn stores the CompanyCode per tenant after authentication and injects it into every request automatically.

CompanyCode stored after authentication

Injected into every SOAP request automatically

No Twinfield-specific header logic on your end

See documentation
Twinfield CompanyCode is automatically injected per request by Maesn.
Twinfield Cluster URL resolved and injected automatically by Maesn

Twinfield Cluster URL resolved and injected automatically.

After authentication, Twinfield returns a cluster-specific base URL required for all subsequent requests. Maesn resolves this during onboarding and routes every request to the correct cluster per tenant, no extra configuration needed.

Cluster URL resolved during onboarding

Correct routing per tenant automatically

No cluster-specific configuration on your end

See documentation

Get listed in the Twinfield marketplace.

Twinfield has an active partner marketplace with a strong user base across the Benelux region and beyond. Becoming a listed technology partner gives your product direct visibility within Twinfield's ecosystem. Maesn supports you through the partner onboarding process and provides a sandbox environment for Twinfield, so you can start building and qualifying immediately.

Twinfield sandbox provided by Maesn

Partner onboarding supported by Maesn

Direct visibility in the Twinfield partner ecosystem

Read more
Get listed in the Twinfield marketplace with Maesn.
Twinfield API documentation

Start your Twinfield API integration today.

The Maesn docs cover every Twinfield endpoint, authentication flow and implementation detail. Plus a full overview of the current coverage, which is continuously being expanded.

Full Twinfield documentation

Current coverage overview at a glance

Continuously expanding endpoints & integrations

See documentation

Get Twinfield partner with Maesn

Get your product and brand name listed at Twinfield marketplace
and benefit from a great audience and strong co-marketing activities.

Maesn supports in the two step Twinfield partner process, to get you listed in their marketplace

Whitepaper: European ERP & accounting market

Get insights and learn about the most imoportant systems in our country-by-country view of the European ERP and Accounting software landscape.

Download whitepaper
European ERP & Accounting market whitepaper: Country-by-Country analysis
Why companies choose Maesn

3 Reasons why Twinfield API integration is better with Maesn

No SOAP, no XML.

Maesn exposes Twinfield through a standard REST interface and handles all XML construction internally.

Cluster URL and CompanyCode automated.

Maesn resolves the cluster-specific URL and stores the CompanyCode per tenant, injecting both into every request automatically.

One integration, every system.

Once Twinfield is live, every other system Maesn supports is immediately accessible. No additional implementation needed.

We are European.

Enterprise-grade security & compliance are our foundation.

Built and hosted in Germany to meet the highest security and compliance standards, Maesn processes API calls in real time without storing customer data and is fully ISO 27001 & GDPR compliant.

We are European. Enterprise-grade security & compliance are our foundation.

Frequently asked
questions

You have more questions? We are looking forward hearing from you - book a meeting now!

What is Twinfield?

Twinfield is a cloud-based accounting platform by Wolters Kluwer, widely used across the Benelux region and beyond, offering tools for financial administration, bookkeeping, and reporting for SMBs and mid-market companies.

Why should I integrate Twinfield via Maesn instead of directly?

Integrating via Maesn eliminates all Twinfield-specific complexity. SOAP to REST abstraction, XML construction, cluster URL routing and CompanyCode injection are all handled automatically behind one unified API. Plus, you immediately gain access to dozens of other accounting and ERP systems.

Does Twinfield have a REST API?

Twinfield's primary API is SOAP-based and requires XML envelope construction on every request. Maesn exposes Twinfield through a standard REST interface and handles all XML construction and parsing internally, so you never have to deal with SOAP directly.

What is the Twinfield cluster URL and do I need to handle it?

After authentication, Twinfield returns a cluster-specific base URL that must be used for all subsequent requests. Maesn resolves this during onboarding and routes every request to the correct cluster per tenant automatically.

What is the Twinfield CompanyCode and do I need to handle it?

Every Twinfield request requires a CompanyCode in the SOAP header. Maesn stores the CompanyCode per tenant after authentication and injects it into every request automatically. No custom header logic required on your end.

Does Twinfield support webhooks?

Twinfield does not offer webhooks natively. Maesn fills this gap with synthetic webhooks, covering every object and every event in a normalized payload, consistent with every other system in your stack.

Does Maesn provide a Twinfield sandbox?

Yes. Maesn provides a Twinfield sandbox environment directly, as Twinfield does not offer one independently. This means you can start building and testing your integration immediately.

Can I get listed in the Twinfield marketplace?

Yes. Maesn supports you through the Twinfield partner onboarding process, giving your product direct visibility within Twinfield's partner ecosystem across the Benelux region and beyond.

What data can I sync with Twinfield via Maesn?

Maesn supports invoices, bills, credit notes, customers, suppliers, payments, journal entries, and more. Coverage is continuously expanding and endpoints can be added on demand.

How is my customers' data handled and stored?

Maesn uses HTTPS and TLS for all data transfer and does not store any customer data. The platform is hosted on Microsoft Azure in Frankfurt, Germany, and is fully GDPR compliant.

Kickstart your Integration Journey now