apayBuild with apay
apay exposes a REST API at https://apay.to/api, a hosted checkout SDK, a dashboard and signed webhooks. Start with the quickstart; the API reference covers every endpoint.
Quickstart
Create a payment, take a test card in the browser, receive the webhook. 15 minutes.
Checkout SDK
Mount the checkout, customise appearance, handle redirects and wallets.
Test cards & sandbox
Card numbers for success, decline, errors and 3-D Secure. Sandbox processors.
Webhooks
Event types, signature verification, retries and the sample receiver.
Apple Pay & Google Pay
Certificates, domain verification and which processors support wallets.
Dashboard & processors
Keys, processors, routing rules, refunds and users.
Going live
What changes between sandbox and live, and the onboarding checklist.
API reference
Interactive reference for every endpoint, generated from the OpenAPI spec.
Bank partners
Partner overview, integration requirements and due-diligence pack.
Endpoints
| Purpose | URL |
|---|---|
| API base | https://apay.to/api (alias https://api.apay.to) |
| Checkout SDK | https://apay.to/web/0.133.0/v1/HyperLoader.js |
| Dashboard | https://app.apay.to |
| Demo checkout | https://apay.to/checkout/ |
| OpenAPI spec | /docs/openapi.json |