--- title: "Payt API: connect it to your AI chat ยท Hypamoon" description: "The Payt API is open, signs in with a bearer token and sends webhooks. What your AI chat can build with it on Hypamoon, with sources." url: https://hypamoon.com/connect-to/payt --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Payt Payments and billing # Connect Payt to Hypamoon Yes. Payt 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 Payt, answered from its own docs. **Public API docs**\ **Yes.** [Read the docs](https://docs.paytsoftware.com/api/overview.md) **A key you create yourself**\ **Yes.** A user with company wide admin rights creates an application on the Connections page in the company settings. [docs.paytsoftware.com](https://docs.paytsoftware.com/authentication/applications.md) **Versions or a changelog**\ **Yes.** Versioned v1 API with a dated changelog, and a separate webhook changelog. [docs.paytsoftware.com](https://docs.paytsoftware.com/api/changelog.md) **How it signs in**\ OAuth 2.0 with an application you create in Payt, or a static API token, both as a bearer token in the Authorization header. **Webhooks**\ **Yes.** It can tell your app when something changes. [docs.paytsoftware.com](https://docs.paytsoftware.com/webhooks/overview.md) **Hosting**\ Cloud **Condition**\ The API module has to be switched on for your administration. ## Your own debtor overview on Payt, built around the questions your customers ask about their invoices. - Debtors, invoices, payments and collection cases, straight from Payt. - AI that spots customers who start paying later and drafts a personal message, with you approving every step. - A screen for your customers and a short weekly email for you. ### Ask your chat Answers straight from your Payt data, in Claude or another chat with the full Hypamoon connection. - Which debtors have more than 5,000 euros overdue? - Which invoices went to a collection case this month? ### When something happens Payt sends a webhook to your app, and the app asks AI what happens next. 1. When Payt reports that a debtor changed or a collection case started. AI decides AI looks at the payment history and decides whether a personal call makes sense. Then The account manager gets an email with a short summary. ### A screen for your team or customers An app on your own address, with sign-in, on top of the same Payt data. - For your customers Customers see their open invoices and can ask for a payment arrangement. ### Add Hypamoon Text messages, email, phone, payments and agents run in the same project as the adapter. - Agent on a schedule Once a week, an agent emails you the customers who pay later than they used to. Payt 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 Payt 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. - Each access token may send 10 requests per second. TLS 1.2 or higher is required. ## 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 Payt. API docs: https://docs.paytsoftware.com/api/overview.md. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Payt.%20API%20docs%3A%20https%3A%2F%2Fdocs.paytsoftware.com%2Fapi%2Foverview.md.%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 7 November 2026. - [docs.paytsoftware.com/api/overview.md](https://docs.paytsoftware.com/api/overview.md) - [docs.paytsoftware.com/authentication/applications.md](https://docs.paytsoftware.com/authentication/applications.md) - [docs.paytsoftware.com/api/changelog.md](https://docs.paytsoftware.com/api/changelog.md) - [docs.paytsoftware.com/webhooks/overview.md](https://docs.paytsoftware.com/webhooks/overview.md) Payt 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 Payt. Found something that changed? Tell us at [support](https://hypamoon.com/support#contact). ## More in payments and billing - [**Adyen** Open](https://hypamoon.com/connect-to/adyen) - [**Authorize.net** Open](https://hypamoon.com/connect-to/authorize-net) - [**Buckaroo** Unknown](https://hypamoon.com/connect-to/buckaroo) - [**Chargebee** Open](https://hypamoon.com/connect-to/chargebee) - [**Klarna** Open](https://hypamoon.com/connect-to/klarna) - [**Mollie** Open](https://hypamoon.com/connect-to/mollie) - [**MultiSafepay** Open](https://hypamoon.com/connect-to/multisafepay) - [**PayPal** Open](https://hypamoon.com/connect-to/paypal) - [**Recurly** Open](https://hypamoon.com/connect-to/recurly) - [**Stripe** Open](https://hypamoon.com/connect-to/stripe) - [**WeFact** Open](https://hypamoon.com/connect-to/wefact) - [**Pay.** Open](https://hypamoon.com/connect-to/pay-nl) - [**Billit** Open](https://hypamoon.com/connect-to/billit) - [**easybill** Open](https://hypamoon.com/connect-to/easybill) - [**GoCardless** Open](https://hypamoon.com/connect-to/gocardless) - 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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 Payt? 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=payt) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~payt#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~payt#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)