Open Yuno Flows
Run a payment step by step in the Yuno sandbox.
Yuno Flows runs against the Yuno sandbox with test cards. No real money moves, and you don’t enter any API keys.
How it works
1
Pick a flow
Filter the list by SDK or API, then select a flow. For example, Default checkout for the SDK.
2
Move through the steps
Use Back and Next, or the arrow keys. Each step explains what happens.
3
Read the panel
Switch between Code, Request, and Response to see the code behind the call, what the merchant sends, and what Yuno returns. The code is available in curl, Node, and Python. To run it yourself, use your own sandbox keys.
4
Pay with a test card
In steps where the shopper pays, enter a test card in the demo store.
Yuno SDK or Direct API
Yuno SDK
The SDK collects the payment details and reports the result to your app. In some flows the SDK creates the payment, in others your backend does.
Direct API
Your server sends the requests to Yuno directly. Your company handles card data, so PCI DSS compliance applies.
Find the guide for each flow
Yuno Flows shows the sequence. These pages explain the concepts and the parameters.createPayment
Your backend creates the payment from the SDK token.
Enrollment
Save a card without a purchase.
3D Secure
Handle issuer challenges.
Transaction Retries
Retry a declined payment with another provider.
Installments
Offer installment plans.
Subscriptions
Charge a card first, then renew.
Wallets
Add Google Pay and Apple Pay.
Capture Payments
Authorize first, capture or refund later.
Payment Links
Generate a link and follow its status.
Stored Credentials
Reuse a saved card for later charges.
Next steps
Understanding flows
Diagrams and step sequences for payment and enrollment.
Quickstart
Send your first payment with a test card in the Yuno sandbox.