Frequently Asked Questions

Common questions and answers about integrating with Meld's crypto infrastructure.

Integration Options

Which integration method should I choose: Widget or White-Label API?

Widget Integration provides a complete UI that handles the entire transaction flow with minimal development effort. Simply redirect users to Meld's hosted interface.

White-Label API Integration requires building your own UI but offers complete customization control. You collect transaction details through your interface, then use Meld's APIs for payment processing.

Choose Widget for faster implementation, White-Label API for custom user experiences.

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More details: Integration Options Guide

API and Development

How do I find supported countries, payment methods, and currencies?

Use Meld's service provider properties endpoints to query available options:

• Add accountFilter=true parameter to see only providers enabled for your account
• Filter by specific providers or query all available options
• Results show supported countries, payment methods, fiat currencies, and tokens

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API Reference: Service Provider Properties

Should I use webhooks or polling for transaction status updates?

Use webhooks - they provide much lower latency and reduce infrastructure strain. Meld strongly recommends webhooks over polling.

Data and Storage

Do I need to store transaction data from Meld?

No, it's optional. Whether using Widget or White-Label API integration, you can:

• View transactions in the Meld dashboard
• Export data as CSV files from the dashboard
• Store locally if needed for your own analytics or record-keeping

Choose based on your business requirements for data retention and analysis.

Support and Troubleshooting

Who handles customer support - Meld or the payment provider?

Contact Meld first for most issues:

• UI problems or bugs
• API call failures
• Missing transactions in Meld's system
• Integration troubleshooting

Provider handles: Payment-specific issues where user paid but didn't receive crypto (Meld doesn't control money or crypto flow).

For payment delivery issues, Meld will direct you to the appropriate provider or you can contact them directly.