Point of sale
Connect Zettle by PayPal to Hypamoon
Yes. Zettle by PayPal 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 Zettle by PayPal, answered from its own docs.
- Public API docs
- Yes. Read the docs
- A key you create yourself
- Yes. The account owner creates an API key at my.zettle.com for a private integration with their own account. github.com
- Versions or a changelog
- Yes. Zettle publishes an API changelog. developer.zettle.com
- How it signs in
- The API key is a signed assertion that you exchange for a two hour access token with the assertion grant; public integrations use OAuth.
- Webhooks
- Yes. It can tell your app when something changes. developer.zettle.com
- Hosting
- Cloud
What you can build
Read sales, products and stock from your Zettle till into your own reports, and keep products and stock in sync with your webshop.
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.
- Events such as purchases, product changes and stock changes are sent through Zettle's Pusher API.
Try it in your chat
Fill in what to read and write, and send it.
Build the Hypamoon recipe build-an-adapter for Zettle by PayPal. API docs: https://developer.zettle.com/docs/api. 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.
- github.com/iZettle/api-documentation/blob/master/authorization.md
- developer.zettle.com/docs/api/changelog
- developer.zettle.com/docs/api/pusher/overview
Zettle by PayPal 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 Zettle by PayPal. Found something that changed? Tell us at support.
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 Zettle by PayPal?
Connect your chat once, then ask it to build the adapter.
Works in Claude and ChatGPT. Add to Claude Add to ChatGPT