ERP and accounting
Connect Expensya to Hypamoon
Yes. Expensya 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 Expensya, answered from its own docs.
- Public API docs
- Yes. The Expensya developer portal lists the Expensya Management, Partner Management, OCR+ and Beta APIs, and the help centre has guides such as retrieving large volumes of expenses. Read the docs
- A key you create yourself
- Yes. An administrator generates a token under Administration, Integrations, API Keys, choosing its type and scope, and then registers on the API portal. expensesupport.medius.com
- Versions or a changelog
- Yes. Beta APIs are published separately from the stable APIs on the developer portal. developer.expensya.com
- How it signs in
- A token generated in Expensya under Administration, Integrations, API Keys, with a type and scope.
- Webhooks
- Not confirmed.
- Hosting
- Cloud
What you can build
Pull approved expenses from Expensya into your own bookkeeping flow, and ask your chat which expense reports are still waiting.
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.
- Expensya is now part of Medius. The OCR+ APIs come in separate service packages.
Try it in your chat
Fill in what to read and write, and send it.
Build the Hypamoon recipe build-an-adapter for Expensya. API docs: https://developer.expensya.com/apis. 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.
- developer.expensya.com/apis
- expensesupport.medius.com/support/solutions/articles/103000338545-using-expensya-partner-s-public-apis-
Expensya 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 Expensya. Found something that changed? Tell us at support.
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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 Expensya?
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