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Build your payment integration with KyrenPay

KyrenPay helps Chinese developers, AI applications, and SaaS teams accept payments from international customers. Use these guides to create a payment link, integrate the payment API, confirm orders, and reconcile funds.

Start your integration

Choose an integration path for your product, from dashboard payment links to a server-side Checkout flow.

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Choose your path

Payment API quickstart

Authenticate your server, create a product and Checkout Session, and send customers to hosted checkout.

Payment links without code

Create and share Checkout links from the merchant dashboard, then track orders and payment status.

Verify payment notifications

Handle signed Webhooks, verify events, and make fulfillment safe to retry.

Migrate an Epay integration

Keep compatible request formats while connecting an existing Epay client to KyrenPay.
Using an AI gateway? Follow the dedicated new-api or sub2api guide to connect balance top-ups through its built-in Epay integration.

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From Checkout to a confirmed order

1

Prepare your merchant account

Review onboarding, enabled payment methods, and API credentials before starting.
2

Create a product and Checkout Session

Define your product, price, and currency. Create the session on your server and redirect the customer to its Checkout URL.
3

Configure and verify Webhooks

Set your notification URL before the first payment. Verify signatures against the original request body and handle duplicate events.
4

Confirm payment and fulfill the order

Use verified payment events and order records to update your system. A browser redirect alone is not proof of payment.
For a complete implementation, see Collect your first payment and the go-live checklist.

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Payment methods and availability

Available payment methods, currencies, and limits depend on your merchant account, bound channels, and platform configuration. Check Payment methods and the supported currencies API for your integration. Fees and settlement conditions follow your merchant agreement.

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API base URL

Review Testing before running payment checks. Use staging only with the environment and credentials provided by KyrenPay.

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Keep building

Explore the API reference

Find request fields, response formats, and examples for products, Checkout, orders, refunds, and balances.

Find an answer

Get help with authentication, payment notifications, order status, and settlement eligibility.