--- title: "Unzer API: connect it to your AI chat ยท Hypamoon" description: "The Unzer 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/unzer --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Unzer Payments and billing # Connect Unzer to Hypamoon Yes. Unzer 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 Unzer, answered from its own docs. **Public API docs**\ **Yes.** [Read the docs](https://docs.unzer.com/server-side-integration/api-basics/authentication/) **A key you create yourself**\ **Yes.** A test account comes with sandbox keys; production keys come with your Unzer contract, without a separate API request. [docs.unzer.com](https://docs.unzer.com/server-side-integration/api-basics/authentication/) **Versions or a changelog**\ **Yes.** Dated news and release entries, and versioned API references. [docs.unzer.com](https://docs.unzer.com/news/) **How it signs in**\ Your private key gets a bearer token from the token endpoint (valid a few minutes); basic auth with the private key is the legacy method. **Webhooks**\ **Yes.** It can tell your app when something changes. [docs.unzer.com](https://docs.unzer.com/server-side-integration/api-basics/notifications/) **Hosting**\ Cloud **Condition**\ Production keys come after you sign an Unzer contract. ## Your own payments overview on Unzer, for your team and your customers. - Payments, charges, refunds and customers, from the Unzer API and webhooks. - AI that spots failed payments and drafts a reminder, with you approving what goes out. - A screen for your team and an email when a payment needs a look. ### Ask your chat Answers straight from your Unzer data, in Claude or another chat with the full Hypamoon connection. - Which payments were charged back this month? - Which invoices paid by bank transfer are still open? ### When something happens Unzer sends a webhook to your app, and the app asks AI what happens next. 1. When A payment fails or is charged back. AI decides AI checks the order and decides whether a reminder or a call makes sense. Then The right colleague gets an email with the advice. ### A screen for your team or customers An app on your own address, with sign-in, on top of the same Unzer data. - For your customers Customers sign in and see their own payments and refunds. Unzer 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 Unzer 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 are registered through the API with a URL and the events you want. The token endpoint allows two new tokens per second, so reuse tokens. ## 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 Unzer. API docs: https://docs.unzer.com/server-side-integration/api-basics/authentication/. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Unzer.%20API%20docs%3A%20https%3A%2F%2Fdocs.unzer.com%2Fserver-side-integration%2Fapi-basics%2Fauthentication%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 7 November 2026. - [docs.unzer.com/server-side-integration/api-basics/authentication/](https://docs.unzer.com/server-side-integration/api-basics/authentication/) - [docs.unzer.com/news/](https://docs.unzer.com/news/) - [docs.unzer.com/server-side-integration/api-basics/notifications/](https://docs.unzer.com/server-side-integration/api-basics/notifications/) Unzer 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 Unzer. 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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[**Deutsche Bank** Possible](https://hypamoon.com/connect-to/deutsche-bank) - [**Commerzbank** Possible](https://hypamoon.com/connect-to/commerzbank) - [**Sparkasse (FinTS)** Possible](https://hypamoon.com/connect-to/sparkasse) - [**N26 Business** Possible](https://hypamoon.com/connect-to/n26-business) - [**Kontist** Open](https://hypamoon.com/connect-to/kontist) - [**BNP Paribas** Possible](https://hypamoon.com/connect-to/bnp-paribas) - [**Credit Agricole** Closed](https://hypamoon.com/connect-to/credit-agricole) - [**Societe Generale** Possible](https://hypamoon.com/connect-to/societe-generale) - [**Shine** Possible](https://hypamoon.com/connect-to/shine) - [**Revolut Business** Possible](https://hypamoon.com/connect-to/revolut-business) - [**Wise Business** Open](https://hypamoon.com/connect-to/wise-business) - [**Checkout.com** Open](https://hypamoon.com/connect-to/checkout-com) - [**Worldline Online Payments** Open](https://hypamoon.com/connect-to/worldline-online-payments) - [**Worldpay** Possible](https://hypamoon.com/connect-to/worldpay) - [**Braintree** Open](https://hypamoon.com/connect-to/braintree) - [**CCV Online Payments** Possible](https://hypamoon.com/connect-to/ccv-online-payments) - [**Rabo Smart Pay** Open](https://hypamoon.com/connect-to/rabo-smart-pay) - [**PAYONE** Open](https://hypamoon.com/connect-to/payone) - [**Nexi Checkout** Open](https://hypamoon.com/connect-to/nexi-checkout) - [**Mangopay** Open](https://hypamoon.com/connect-to/mangopay) - [**Lemonway** Open](https://hypamoon.com/connect-to/lemonway) - [**Rapyd** Open](https://hypamoon.com/connect-to/rapyd) - [**Tpay** Open](https://hypamoon.com/connect-to/tpay) - [**PayU** Open](https://hypamoon.com/connect-to/payu) - [**Redsys** Open](https://hypamoon.com/connect-to/redsys) - [**MONEI** Open](https://hypamoon.com/connect-to/monei) - [**PAYCOMET** Open](https://hypamoon.com/connect-to/paycomet) - [**Dojo** Open](https://hypamoon.com/connect-to/dojo) - [**Cybersource** Open](https://hypamoon.com/connect-to/cybersource) - [**Airwallex** Open](https://hypamoon.com/connect-to/airwallex) - [**Satispay** Open](https://hypamoon.com/connect-to/satispay) - [**Global Payments** Possible](https://hypamoon.com/connect-to/global-payments) - [**Barclays** Possible](https://hypamoon.com/connect-to/barclays) - [**HSBC** Possible](https://hypamoon.com/connect-to/hsbc) - [**Lloyds Bank** Possible](https://hypamoon.com/connect-to/lloyds-bank) - [**NatWest** Possible](https://hypamoon.com/connect-to/natwest) - [**Starling Bank** Open](https://hypamoon.com/connect-to/starling-bank) - [**Tide** Possible](https://hypamoon.com/connect-to/tide) - [**Monzo Business** Closed](https://hypamoon.com/connect-to/monzo-business) - [**JPMorgan Chase** Possible](https://hypamoon.com/connect-to/jpmorgan-chase) - [**Bank of America** Possible](https://hypamoon.com/connect-to/bank-of-america) - [**Wells Fargo** Possible](https://hypamoon.com/connect-to/wells-fargo) - [**Mercury** Open](https://hypamoon.com/connect-to/mercury) - [**GoCardless Bank Account Data** Open](https://hypamoon.com/connect-to/gocardless-bank-account-data) - 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[**Avalara E-Invoicing** Possible](https://hypamoon.com/connect-to/avalara-e-invoicing) - [**Scrada** Possible](https://hypamoon.com/connect-to/scrada) - [**Digipoort** Possible](https://hypamoon.com/connect-to/digipoort) - [**Storecove** Unknown](https://hypamoon.com/connect-to/storecove) - [**Chorus Pro** Unknown](https://hypamoon.com/connect-to/chorus-pro) - [**Sovos** Possible](https://hypamoon.com/connect-to/sovos) - [**EDICOM** Unknown](https://hypamoon.com/connect-to/edicom) - [**ecosio** Possible](https://hypamoon.com/connect-to/ecosio) - [**Banqup** Open](https://hypamoon.com/connect-to/banqup) - [**Tradeshift** Open](https://hypamoon.com/connect-to/tradeshift) [All 1094 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 Unzer? 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=unzer) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~unzer#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~unzer#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)