ERP and accounting
Connect Lexware Office (lexoffice) to Hypamoon
Yes. Lexware Office (lexoffice) has a public, versioned API and you create the key yourself, so your chat can write the adapter.
OpenThe check
Three questions about the API of Lexware Office (lexoffice), answered from its own docs.
- Public API docs
- Yes. Read the docs
- A key you create yourself
- Yes. Users generate a private API key in their account under the Public API add-on. developers.lexware.io
- Versions or a changelog
- Yes. Versioned path (/v1/) and a dated changelog in the docs. developers.lexware.io
- How it signs in
- Private API key sent as a Bearer token.
- Webhooks
- Yes. It can tell your app when something changes. developers.lexware.io
- Hosting
- Cloud
- Condition
- The Public API is only included in the Lexware Office XL plan.
In practice
What it takes in a real Lexware Office (lexoffice) administration.
- Getting access
- On the XL plan, open the Public API page in your Lexware Office account and generate a private API key.
- Limits
- 2 requests per second across all endpoints, enforced with a token bucket; going over gives HTTP 429. developers.lexware.io
- Writing
- Read and write. Create contacts, articles, quotations, invoices, credit notes and vouchers, and upload files.
- Cost
- Not published.
What you can build
Create contacts, quotes and invoices from a web form or chat, and get a message when an invoice or contact changes.
Your chat writes it as a Hypamoon adapter from the docs above. Reading starts after you click Allow in the portal, and every write waits for your approval, one call at a time. How adapters work
Good to know
- Your adapter uses a fixed key: you paste it once in the Hypamoon portal, never in the chat, and it only goes to the API host you allow.
- Up to 2 requests per second. The API moved to api.lexware.io in 2025. Event subscriptions send webhooks with a signature you can verify.
Try it in your chat
Fill in what to read and write, and send it.
Build the Hypamoon recipe build-an-adapter for Lexware Office (lexoffice). API docs: https://developers.lexware.io/docs/. Read: [what]. Write: [what, or nothing].
In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. The full recipe
Sources
Checked on 1 November 2026.
Lexware Office (lexoffice) is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with Lexware Office (lexoffice). Found something that changed? Tell us at support.
More in erp and accounting
- AcumaticaOpen
- AFAS ProfitOpen
- DATEVPossible
- e-Boekhouden.nlOpen
- Exact for AccountancyOpen
- Exact Globe+Possible
- Exact GrippPossible
- Exact MultiversPossible
- Exact OnlineOpen
- FreshBooksOpen
- HoldedOpen
- IsahUnknown
- JorttOpen
- KING FinancePossible
- Microsoft Dynamics 365 Business CentralOpen
- Microsoft Dynamics 365 Finance and OperationsOpen
- Microsoft Dynamics NAVOpen
- MoneybirdOpen
- OdooOpen
- Oracle NetSuiteOpen
- PennylaneOpen
- QuickBooks OnlineOpen
- Ridder iQUnknown
- Sage Accounting (Sage Business Cloud)Unknown
- Sage IntacctPossible
- SAP Business OneOpen
- SAP S/4HANAOpen
- sevDeskOpen
- SimplicateOpen
- SnelStartPossible
- Syntess AtriumClosed
- TwinfieldPossible
- Unit4 ERPxPossible
- Visma eAccountingPossible
- Visma.net ERPPossible
- WavePossible
- XeroOpen
- Yuki (Nmbrs Accounting)Unknown
- Zoho BooksOpen
- BILL (Bill.com)Open
- BrexOpen
- ExpensifyPossible
- PleoPossible
- RampOpen
Tool not listed? Ask the chat to check its API.
The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found.
Check if [software] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used.
Fill in the name of your software. Checking needs no connection to Hypamoon.
Ready to connect Lexware Office (lexoffice)?
Connect your chat once, then ask it to build the adapter.
Works in Claude and ChatGPT. Add to Claude Add to ChatGPT