Real estate and rentals
Connect onOffice enterprise to Hypamoon
Possible, with help from onOffice enterprise. The API is documented, but you cannot just create a key: access goes through onOffice enterprise first.
PossibleThe check
Three questions about the API of onOffice enterprise, answered from its own docs.
- Public API docs
- Yes. Public API documentation with request examples and action reference. Read the docs
- A key you create yourself
- No. The API is a paid module for enterprise customers, arranged through onOffice sales. Once active, the customer generates the token and secret for an API user in the user settings. apidoc.onoffice.de
- Versions or a changelog
- Yes. A stable endpoint updated monthly and a latest endpoint, plus monthly API release news. apidoc.onoffice.de
- How it signs in
- A token and secret of an API user; every request is signed with an HMAC.
- Webhooks
- Not confirmed.
- Hosting
- Cloud
- Condition
- The API module must be bought from onOffice sales before an API user can be created.
What you can build
Pull listings and contacts from onOffice into your own website or dashboard, and log website inquiries as new contacts.
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
- onOffice enterprise signs in with OAuth or signed requests only, with tokens that expire. The Hypamoon vault holds a fixed key today, so an adapter for onOffice enterprise takes more work: ask your chat to check this first.
- Two endpoints: stable (updated monthly) and latest. Support at apisupport@onoffice.de.
Try it in your chat
First get access from onOffice enterprise. Then fill in what to read and write, and send it.
Build the Hypamoon recipe build-an-adapter for onOffice enterprise. API docs: https://apidoc.onoffice.de/. 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 7 November 2026.
onOffice enterprise 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 onOffice enterprise. Found something that changed? Tell us at support.
More in real estate and rentals
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 onOffice enterprise?
Connect your chat once, then ask it to build the adapter.
Works in Claude, ChatGPT and Copilot. Add to Claude Add to ChatGPT 
Add to Copilot