Integration depth is a dial, not a cliff. At one end, a snippet in a product page gives you the full checkout; at the other, a server-side API gives your platform complete control of amounts, policies, and state. Most merchants start at the shallow end and never need to leave.
This guide walks all three paths and the webhook that ties them together.
Every step, in order.
Embed for the fastest path: a checkout surface inside your own page. Payment links for no-site selling: a URL that is the checkout. API for platforms: checkouts created and tracked server-side.
Add a container and the universal snippet where the payment belongs. The embed offers every rail your store enabled, styled to your brand, and settles identically to every other path.
Create reusable links for your services or one-off links per sale; QR renders from any link for counters and print. Status tracks per link: which conversation converted is one glance.
Create checkouts server-side with the amounts, assets, and policies your platform needs; the REST surface and SDKs cover every app framework.
Register your endpoint and receive cryptographically signed events: payment seen, confirmed per policy, completed. Verify the signature, update your state, sleep well.
Run test payments against your confirmation policies, check the webhook handling end to end, and flip the store live. The same rails, the same settlement, no parallel config to maintain.
The embed-versus-API decision is really a question of who owns state. The embed owns the payment surface and hands you webhooks: perfect for shops. The API owns nothing and lets you own everything: perfect for platforms billing on behalf of others, where amounts are dynamic, checkouts are ephemeral, and reconciliation must live in your database. Links are the surprise workhorse: for services sold in conversation, the link replaces the entire checkout page.
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Six guides, one platform, every rail non-custodial.