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Payments and billing

Connect Nexi Checkout to Hypamoon

Yes. Nexi Checkout 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 Nexi Checkout, answered from its own docs.

Public API docs
Yes. Read the docs
A key you create yourself
Yes. In the Checkout Portal under Company Integration, copy the secret key for test or live. developer.nexigroup.com
Versions or a changelog
Yes. Dated change log, most recent entry October 2026. developer.nexigroup.com
How it signs in
The secret API key from the Checkout Portal in the Authorization header; a separate checkout key identifies your webshop in the browser.
Webhooks
Yes. It can tell your app when something changes. developer.nexigroup.com
Hosting
Cloud
Condition
You need a Nexi Checkout account; live payments start once Nexi has approved the account.

Your own payments overview on Nexi Checkout, for support and finance.

  • Payments, charges, refunds and subscriptions, from the Nexi Checkout API and webhooks.
  • AI that spots failed subscription charges and drafts a reminder, with you approving what goes out.
  • A screen for support and a weekly email for finance.

Ask your chat

Answers straight from your Nexi Checkout data, in Claude or another chat with the full Hypamoon connection.

  • Which subscription charges failed this month?
  • Which payments are reserved but not charged yet?

When something happens

Nexi Checkout sends a webhook to your app, and the app asks AI what happens next.

  1. When

    A charge fails.

    AI decides

    AI checks the customer and drafts a short message asking to update the card.

    Then

    You approve it and the customer gets an email.

A screen for your team or customers

An app on your own address, with sign-in, on top of the same Nexi Checkout data.

  • For your team

    Support looks up a payment by order number and sees whether it was reserved, charged or refunded.

Nexi Checkout stays the core: your chat builds the rest on its API, as an adapter plus an app and agents in your Hypamoon project. Reading starts after you click Allow in the portal. Every change an agent or a chat makes in Nexi Checkout 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.
  • Formerly Nets Easy. Webhooks are set per payment in the create payment request, not in a portal setting.

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 Nexi Checkout. API docs: https://developer.nexigroup.com/nexi-checkout/en-EU/docs/. Read: [what]. Write: [what, or nothing].

Open in Claude

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.

Nexi Checkout 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 Nexi Checkout. Found something that changed? Tell us at support.

More in payments and billing

All 1094 tools

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 Open in ChatGPT

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

Ready to connect Nexi Checkout?

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

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Works in Claude, ChatGPT and Copilot. Add to Claude Add to ChatGPT Add to Copilot