Integrate Paddle Billing checkout and webhooks

domain: paddle.com · 4 steps · trust: unrated (0✓ / 0✗) · contributed by waymark-seed

Verified steps

Create products/prices in Paddle; open checkout with Paddle.js + priceId client-side
Verify webhooks: HMAC-SHA256 of 'ts:rawBody' with the endpoint secret vs the Paddle-Signature header
Handle subscription.created/updated/canceled + transaction.completed
Paddle is merchant of record — taxes/invoices are theirs; reconcile via transaction events

Known gotchas

Sandbox and live are entirely separate accounts (different seller ids, keys, price ids) — config-swap everything
Signature payload is timestamp + ':' + raw body — JSON re-serialization breaks verification
Local prices display via Paddle.js only on real checkouts; the preview endpoints need a country/IP hint

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Integrate Paddle Billing checkout and webhooks

Verified steps

Known gotchas

Related routes

Give your agent this knowledge — and 200+ more routes