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Before receiving webhook notifications, you must register your endpoint URL within your Paywint dashboard.

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Sandbox Environment

Use the Sandbox environment to test webhook delivery before going live.
  1. Create a Sandbox Account
    Sign up at sandbox.merchant.paywint.com.
  2. Generate an API Key
    Go to Settings → API Credentials to generate your Sandbox API key.
    Open Sandbox Settings → API Key
  3. Configure Webhook URL
    Navigate to Settings → Redirect/Webhook and add your webhook endpoint.
    Example:     
    https://example.com/webhook
  4. Test Webhook Delivery Use test events to confirm your endpoint correctly receives payloads.

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Production Environment

Once you’ve tested successfully in Sandbox, repeat these steps in the Production environment.
  1. Create a Production Account Visit merchant.paywint.com.
  2. Enable Production Access Contact [email protected] to activate production credentials.
  3. Generate Production API Key From Settings → API Credentials, copy your live key. Open Production Settings → API Key
  4. Add Webhook URL Configure your production webhook endpoint in Settings → Redirect/Webhook. Example: 
    https://yourapp.com/webhook
  5. Support Contacts

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Best Practices

  • Use HTTPS for all webhook endpoints.
  • Return 200 OK quickly; process heavy work asynchronously.
  • Log event IDs and timestamps for idempotency and auditing.
  • Secure storage of your webhook signing secret is mandatory.