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Stripe
alternativesStripe is a comprehensive payment processing platform that provides APIs and infrastructure for businesses to accept payments, manage subscriptions, handle payouts, and build financial products across 50+ countries.
8/27/2025
2 pages
payment-processingfintechfinancial-apis+9 more
Dwolla
toolDwolla is a payment API platform that enables businesses to integrate account-to-account bank transfers and ACH payments directly into applications through a unified REST API.
8/26/2025
1 pages
payment-apisfinancial-technologyapi-platforms+6 more
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From Adyen
From PayPal
PayPal Developer Integration: Real-World Payment Processing Guide
Navigate PayPal API integration challenges, from real-world payment processing to debugging webhooks. Learn how to integrate PayPal effectively and avoid common pitfalls.
paypalapi-integrationpayment-gateway+6 more
PayPal Troubleshooting: Fix Integration & API Errors
Troubleshoot common PayPal integration errors like 10002 authentication failures and webhook issues. Learn to fix dev vs. prod problems and decode cryptic PayPal error messages.
paypaltroubleshootingapi-integration+6 more