---
title: "Connect SumUp to Hypamoon"
description: "SumUp has an open API. See what you can build with it in Hypamoon, how it signs in, and the sources we checked."
url: https://hypamoon.com/connect-to/sumup
---

1.  [Connect to](https://hypamoon.com/connect-to)
2.  SumUp

Point of sale

# Connect SumUp to Hypamoon

Yes. SumUp has a public, versioned API and you create the key yourself, so your chat can write the adapter.

Open

## The check

Three questions about the API of SumUp, answered from its own docs.

**Public API docs**\
**Yes.** [Read the docs](https://developer.sumup.com/api/)

**A key you create yourself**\
**Yes.** Create a secret API key in your SumUp account under Settings, For Developers, Toolkit, API Keys. [developer.sumup.com](https://developer.sumup.com/tools/authorization/api-keys/)

**Versions or a changelog**\
**Yes.** Versioned paths such as /v0.1/ and a public changelog. [developer.sumup.com](https://developer.sumup.com/changelog/)

**How it signs in**\
Secret API key as a Bearer token for your own merchant account; OAuth for apps used by other merchants.

**Webhooks**\
**Yes.** It can tell your app when something changes. [developer.sumup.com](https://developer.sumup.com/online-payments/webhooks/)

**Hosting**\
Cloud

## What you can build

Create online checkouts or payment links from your chat and read transactions and payouts into your own reports.

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](https://hypamoon.com/docs/adapters)

### 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.
-   Webhooks only report checkout status changes, through the return URL you pass when creating a checkout.

## Try it in your chat

Fill in what to read and write, and send it.

Say this in your chat

> Build the Hypamoon recipe build-an-adapter for SumUp. API docs: https://developer.sumup.com/api/. Read: \[what\]. Write: \[what, or nothing\].

[Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20SumUp.%20API%20docs%3A%20https%3A%2F%2Fdeveloper.sumup.com%2Fapi%2F.%20Read%3A%20%5Bwhat%5D.%20Write%3A%20%5Bwhat%2C%20or%20nothing%5D.)

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](https://hypamoon.com/r/build-an-adapter)

## Sources

Checked on 1 November 2026.

-   [developer.sumup.com/api/](https://developer.sumup.com/api/)
-   [developer.sumup.com/tools/authorization/api-keys/](https://developer.sumup.com/tools/authorization/api-keys/)
-   [developer.sumup.com/changelog/](https://developer.sumup.com/changelog/)
-   [developer.sumup.com/online-payments/webhooks/](https://developer.sumup.com/online-payments/webhooks/)

SumUp 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 SumUp. Found something that changed? Tell us at [support](https://hypamoon.com/support#contact).

## More in point of sale

-   [**Clover** Unknown](https://hypamoon.com/connect-to/clover)
-   [**Square** Open](https://hypamoon.com/connect-to/square)
-   [**Toast** Open](https://hypamoon.com/connect-to/toast)
-   [**unTill** Possible](https://hypamoon.com/connect-to/untill)
-   [**Zettle by PayPal** Open](https://hypamoon.com/connect-to/zettle)

[All 267 tools](https://hypamoon.com/connect-to)

## 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.

Say this in your chat

> 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.

[Open in Claude](https://claude.ai/new?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) [Open in ChatGPT](https://chatgpt.com/?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.)

Fill in the name of your software. Checking needs no connection to Hypamoon.

## Ready to connect SumUp?

Connect your chat once, then ask it to build the adapter.

[Start free](https://app.hypamoon.com/?mode=signup&utm_source=connect-to&utm_campaign=sumup)

Works in Claude and ChatGPT. [Add to Claude](https://hypamoon.com/connect?via=connect-to~sumup#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~sumup#chatgpt)