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Overview

OnlyPay is a comprehensive payment platform that provides innovative payment solutions for businesses, with a focus on secure transactions and seamless user experiences.

Setup​

OnlyPay provides a self-service sign-up for both test and live accounts. To get started, visit the OnlyPay sign-up page and create your account.

Credentials​

To set up credentials for OnlyPay, you'll need to access your OnlyPay Dashboard and navigate to Settings -> API Configuration. You'll need the following credentials:

  • Merchant ID - This is your unique identifier for API access. You can find this in your Dashboard under Settings -> API Configuration -> Merchant ID.
  • API Key - This is your secret key for API authentication. You can find this in your Dashboard under Settings -> API Configuration -> API Key.
  • Webhook Secret - This is used to verify webhook signatures. You can find this in your Dashboard under Settings -> Webhooks -> Signing Secret.

Supported Payment Methods​

OnlyPay supports a comprehensive range of payment methods through our platform:

  • Card Payments - Credit and debit cards from major networks worldwide
  • Digital Wallets - Apple Pay, Google Pay, WeChat Pay, Alipay
  • Bank Transfers - Local and international bank transfer methods
  • Buy Now, Pay Later - Various installment payment options
  • Local Payment Methods - Regional payment methods based on your account configuration

Integration Benefits​

  • Global Coverage - Support for multiple currencies and payment methods
  • Advanced Security - Built-in fraud detection and PCI compliance
  • Unified API - Single integration for multiple payment methods
  • Real-time Processing - Instant payment confirmation and webhook notifications
  • Developer-Friendly - Comprehensive documentation and developer tools

Getting Started​

  1. Sign up for OnlyPay - Create your OnlyPay account
  2. Configure credentials - Set up API keys and webhook endpoints
  3. Enable payment methods - Choose which payment methods to support
  4. Integrate with EFundPay - Use our unified API for all OnlyPay payments
  5. Test thoroughly - Use test environment for development
  6. Go live - Switch to production when ready

Webhook Configuration​

Configure webhooks in your OnlyPay Dashboard under Settings -> Webhooks. Add the following endpoint:

https://api.efundpay.com/webhooks/onlypay

Make sure to select the following events:

  • payment.success
  • payment.failed
  • payment.cancelled
  • refund.success

Testing​

OnlyPay provides comprehensive testing tools:

  • Test Cards - Various test card numbers for different scenarios
  • Test Environment - Complete test environment for development
  • Webhook Testing - Tools to test webhook delivery
  • Dashboard Testing - Test payments directly from the Dashboard

Support​

For technical support with OnlyPay integration:

  • EFundPay Support - Contact our technical team
  • OnlyPay Support - Use OnlyPay's support resources
  • OnlyPay Documentation - Comprehensive API documentation
  • OnlyPay Community - Developer community forums
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