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Sage Accounting is a cloud accounting platform used by small and medium-sized businesses across seven countries including the UK, Ireland, USA, Canada, France, Spain, and Germany. Part of Sage Business Cloud, it covers invoicing, expense tracking, bank reconciliation, VAT reporting, and multi-business management.
Integrate Sage Accounting alongside dozens of other accounting and ERP systems through Maesn Unified API.
5-minute token expiry with rotating refresh tokens, X-Business header injection, multi-business selection and idempotency keys — Maesn handles all Sage Accounting-specific complexity so you for you.
Sage Accounting supports the UK, Ireland, USA, Canada, France, Spain and Germany through one base URL. Maesn normalizes country-specific tax rates and chart of accounts per tenant so you reach all seven markets without extra implementation.
Sage Accounting provides sandbox credentials for testing. Maesn guides you through the setup so you can start building and testing your integration immediately before going through the full partner process.
Hero Software helps craft businesses digitize and automate their entire back-office — from quotes to invoicing. Over 40,000 tradespeople use their cloud-based platform to eliminate manual admin and run operations more efficiently.
“The support provided is truly first class, with impressively quick response times. The documentation is thorough and easy to follow, which made integration a smooth process for me. I also appreciate the wide range of accounting integrations and endpoints available. It's clear that the endpoints are continuously being developed and expanded, which adds even more value to the platform.”
Ricardas Kauneckas
Full Stack Engineer @ HERO Software
Unified. Certified. Production-ready.
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Sage Accounting access tokens expire after just 5 minutes and refresh tokens rotate on every use. A single storage failure after a refresh call breaks the entire integration for that tenant with no recovery path other than full re-authorization. Maesn manages the full token lifecycle with proactive refresh before expiry and safe rotation storage per tenant.
Access tokens refreshed proactively before 5-minute expiry
Rotating refresh tokens stored reliably per tenant
Re-authorization detection surfaced clearly
Every Sage Accounting request requires an explicit X-Business header containing the business GUID. This cannot be determined during authentication - a separate post-auth API call is required to discover all businesses the user has access to. Maesn handles business discovery during onboarding and injects the correct X-Business header automatically on every subsequent request.
Company-specific tax objects pulled per tenant
Mapping flexibility for your customer
Correct tax ID applied on every document write
Without idempotency handling, network failures on POST requests leave you in an uncertain state. You do not know whether the record was created and retrying blindly may create duplicates. Maesn applies idempotency keys automatically on all Sage Accounting POST operations so retries after network failures are always safe.
Idempotency keys applied on all POST operations
Safe retry logic handled in the Maesn backend
No duplicate records on network failures
Sage Accounting does not offer webhooks natively. Maesn can extend coverage with synthetic webhooks for any Sage Accounting object and event. Normalized and consistent with every other system in your stack. Available on demand.
Sage Accounting does not support native webhooks
Synthetic webhooks extendable on demand via Maesn
Normalized payloads consistent with every other system
Holded offers an in-app store with direct visibility to its user base across Spain and the broader Spanish-speaking market. Getting listed requires fulfilling certain requirements set by Holded. Maesn supports you through the listing process and helps you reach the requirements fast.
Direct visibility in the Holded in-app store
Listing requirements supported by Maesn
Access to Holded's Spanish SME customer base
The Maesn docs cover every Sage Accounting endpoint, authentication flow and implementation detail, plus a full overview of the current coverage, which is continuously being expanded.
Full Sage Accounting endpoint & authentication documentation
Standard Auth-flow for your users
No custom token storage or grant token management
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Sage got more than 2 mio customers and a high frequented marketplace.
Get listed and benefit from their strong customer-base.
Get insights and learn about the most imoportant systems in our country-by-country view of the European ERP and Accounting software landscape.
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Sage Accounting tokens expire every 5 minutes with rotating refresh tokens. Maesn refreshes proactively and stores rotation reliably per tenant so your integration never fails silently.
Every Sage Accounting request requires a business ID fetched in a separate post-auth call. Maesn handles business discovery and injects the X-Business header automatically on every request.
Once Sage Accounting is live, every other system Maesn supports is immediately accessible.
We are European.
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.
Everything you need to know about Sage Accounting.
You have more questions? We are looking forward hearing from you - book a meeting now!
Sage Accounting is a cloud-based accounting platform used by small and medium-sized businesses across seven countries including the UK, Ireland, USA, Canada, France, Spain and Germany, offering tools for invoicing, expense tracking, bank reconciliation, VAT and tax reporting and multi-business management.
Integrating via Maesn eliminates all Sage Accounting-specific complexity. 5-minute token expiry with rotating refresh tokens, X-Business header injection, multi-business discovery, idempotency handling and country-specific tax normalization are all handled automatically behind one unified API. Plus, you immediately gain access to dozens of other accounting and ERP systems.
Sage Accounting access tokens expire after just 5 minutes and refresh tokens rotate on every use. A single storage failure after a refresh call breaks the entire integration for that tenant. Maesn manages the full token lifecycle with proactive refresh before expiry and safe rotation storage per tenant so your integration never fails silently.
Every Sage Accounting request requires an explicit X-Business header containing the business GUID. This cannot be determined during authentication — a separate post-auth API call is required to discover all businesses the user has access to. Maesn handles business discovery during onboarding and injects the correct X-Business header automatically on every subsequent request.
Without idempotency handling, network failures on POST requests leave you uncertain whether a record was created. Retrying blindly may create duplicates. Maesn applies idempotency keys automatically on all Sage Accounting POST operations so retries after network failures are always safe and never create duplicate records.
Sage Accounting does not offer webhooks natively. Maesn can fill this gap with synthetic webhooks on request covering every object and every event in a normalized payload consistent with every other system in your stack.
Yes. Sage Accounting's marketplace gives your product direct access to over 2 million Sage customers across seven countries. Getting listed is a manual process via Sage's partner team including a strategic fit assessment. Maesn is a close Sage partner and supports you through the full listing process.
Maesn supports invoices, bills, credit notes, customers, suppliers, contacts, payments, journal entries, expenses and more. Coverage is continuously expanding and endpoints can be added on demand.
Most teams have a working Sage Accounting integration within days. Maesn provides documentation, sandbox access and direct support to get you to production fast.
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 & ISO 27001 compliant.
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