Quick start
Check the prerequisites, install, connect to Adyen and test.
Free and open source · runs on Adyen Android terminals
The whole checkout, right on the payment terminal.
Mini mPOS runs directly on Adyen Android terminals, so one device rings up products, takes the payment, prints or emails the receipt, and refunds by scanning it. No separate till, no tablet and no app subscription. Prefer a tablet or phone? Mini mPOS runs there too, with your terminals or Tap to Pay.
- Runs on the terminal itself
- Or on a tablet or phone
- Any currency Adyen processes
- Built-in simulator to try it out
- In English, Chinese and Japanese
Find the guide you need
Using Mini mPOS
Take payments, refund, deliver receipts and close the day.
Troubleshooting
Fix unknown results, declines, pairing, network and printer problems.
Everything you need to sell in person
From one counter to many devices across stores, events, deliveries and service calls: products, payments, receipts and refunds, without a back office to run.
Products at your fingertips
Keep a product list with prices, categories, barcodes and tax. Search, filter, scan a barcode, or key in a custom amount.
Payments made simple
Take card and wallet payments with Adyen on the terminal itself, or from a tablet or phone with a terminal or Tap to Pay.
Receipts your way
Print a complete receipt with your business details and a refund QR code, email it, or share it from a tablet or phone.
Payment links
Send a payment link instead: the customer scans its QR code or opens it from an email, and pays on Adyen's payment page.
Refunds in seconds
Scan the QR code on the receipt, then refund everything, a few items, or an amount. Always linked to the original payment.
Pre-authorize deposits
Hold a deposit for a booking or rental. Collect the payment later, adjust the amount or release the hold.
Tips on the receipt
Let customers leave a tip on the printed receipt, then add it to the bill when they are ready.
Flexible tax and currency
Set your own tax rates, include tax in prices or add it at checkout. Choose any currency Adyen supports.
Scan in your setup
Fill in your keys on a computer with the setup helper and scan them in. Copy products and settings to more devices by QR code, keys included, protected by a transfer code.
Locked down
Protect setup with an admin PIN and financial follow-up actions with a separate Manager PIN. Passwords and keys stay encrypted.
From sale to refund
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1 Ring it up
Tap products or key in an amount.
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2 Check out
Add a reference and, with consent, save the card.
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3 Print the receipt
One slip with everything, plus a QR code.
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4 Refund by scanning
Scan the receipt and pick what to refund.
Find any transaction
See daily totals and find sales, refunds and deposits in a few taps.
- Search your way. Find a reference, customer, card or amount.
- Filter by payment method. Choose a card brand or wallet, including Apple Pay, Google Pay and Samsung Pay.
- Keep track of what needs doing. See tips to enter, deposits to collect and payments that need attention.
Built into Adyen terminals
Installed on the terminal, Mini mPOS needs no other hardware and no backend to run. On a tablet or phone, it works with your terminals or Tap to Pay.
- Card data stays with Adyen. Mini mPOS only receives masked card details and payment references.
- Your business, on your device. Manage products, settings and history on the device, without a cloud account.
- Made for the counter and beyond. Fits compact terminals such as the AMS1, models with a built-in printer, and tablets and phones.
Get started
Try it first
Explore the built-in simulator on an Android phone or emulator, without a payment terminal.
Ready for your business?
Download the app, put it on your terminals through your Adyen Customer Area (or install it on a tablet or phone), and scan in your keys from the setup helper. Our guide walks you through it.
Questions
Which setup is right for me?
Run directly on an Adyen Android terminal for an all-in-one checkout, or use an Android tablet or phone with a network terminal, cloud terminal or Tap to Pay. See requirements and setup choices. Printing needs a printer; scanning needs a camera.
What does it cost?
The app is free and open source under the MIT license. Adyen's payment processing fees still apply.
Is it an Adyen product?
No. Mini mPOS is not made, endorsed or supported by Adyen. Test your setup in Adyen's TEST environment before going live. See where to get help for app and Adyen questions.
Do devices share a back office?
No. Products, settings and history stay on each device. QR transfers copy products and setup, not payment history or ongoing changes. See devices and data.
Do I need a server or API keys?
No server, but every real-payment setup needs Checkout API credentials. Other keys depend on where payments go. They are encrypted on the device, a trade-off against Adyen's server-side recommendation. Follow connection setup and the security guidance there.