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Payments and billing

Connect Pay. to Hypamoon

Yes. Pay. 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 Pay., answered from its own docs.

Public API docs
Yes. Public developer documentation and API reference. Read the docs
A key you create yourself
Yes. Copy the API token from the tokens page in your own Pay. account. developer.pay.nl
Versions or a changelog
Yes. Versioned docs (v2.0) and dated release notes. developer.pay.nl
How it signs in
Basic authentication with the AT code of your token as user name and the token as password; some calls take a sales location code (SL code) and its secret.
Webhooks
Yes. It can tell your app when something changes. developer.pay.nl
Hosting
Cloud

Your own payment follow-up on Pay., for your team and your customers.

  • Transactions, refunds and sales locations, straight from Pay.
  • AI that spots failed or expired payments and decides who needs a reminder.
  • A screen for your team and an email to the customer when a payment does not go through.

Ask your chat

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

  • Which payments failed or expired yesterday, and for which orders?
  • How much did we refund this month?

When something happens

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

  1. When

    Pay. sends an exchange call because a transaction changed status.

    AI decides

    AI looks at the order and the customer's history and decides whether to wait, remind or alert you.

    Then

    The customer gets an email from your app, or you get a short note.

A screen for your team or customers

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

  • For your team

    A screen for your team with today's payments, failures and refunds per sales location.

Add Hypamoon

Text messages, email, phone, payments and agents run in the same project as the adapter.

  • Text message, Netherlands for now

    A payment expires, and the customer gets a text message with a link to try again.

Pay. 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 Pay. 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.
  • Status updates arrive as exchange calls to your URL; you can switch on signed exchanges per sales location. A serviceId (sales location) is needed for most calls.

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 Pay.. API docs: https://developer.pay.nl/v2.0/docs/how-to. 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.

Pay. 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 Pay.. 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 Pay.?

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

Start free

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