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Use search when the broad directory stops being enough. Filter by category, auth, CORS, signup friction, and result freshness until the shortlist becomes obvious.
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Adyen Checkout API
Adyen Checkout API is the modern payments API for new integrations — pairs with frontend drop-in components, auto-adapting to 250+ payment methods.
Stripe API
Payment and commerce infrastructure API covering card payments, subscriptions, marketplaces, and disputes.