Choose Your Integration Method

Meld offers exactly two integration options for adding crypto functionality to your application. Choose the approach that best fits your needs.

New to Meld? Start with our Quick Start Guide for hands-on implementation in 30 minutes.

🚀 Widget Integration (Public Key URL)

Perfect for: Quick launch, minimal development effort

How It Works:

Get your complete Public Key URL from the Meld Dashboard (Developer tab)
Redirect users or embed via iframe using your Meld Widget URL
User completes transaction in Meld's interface
Done! ✅

Key Benefits:

✅ Fastest setup - launch in minutes, not weeks
✅ No development required - just use the URL
✅ Simple integration - no API knowledge needed
✅ Built-in compliance - KYC/AML handled for you
✅ Mobile optimized - works perfectly on all devices

Limitations:

❌ Limited customization - uses Meld's UI/branding
❌ Less control over user experience
❌ Standard flow - can't modify steps
❌ Transfer not available - only buy and sell supported

Widget URLs:

Sandbox:

https://meldcrypto.com/?publicKey=YOUR_SANDBOX_PUBLIC_KEY

Production:

https://meldcrypto.com/?publicKey=YOUR_PRODUCTION_PUBLIC_KEY

Get your complete Public Key URLs from the Meld Dashboard → Developer tab.

When to Choose Widget Integration:

⭐ You want to launch crypto features quickly
⭐ You have limited development resources
⭐ You're testing the market before full integration
⭐ You're okay with Meld's standard UI/UX

Example: QuickSwap uses Widget Integration - they redirect users directly to Meld's widget for fast crypto purchases with zero development overhead. To see an example of this, go to meldcrypto.com.

➡️ Get Started with Widget Integration

🎨 White-Label API Integration

Perfect for: Custom design, complete flexibility over user experience

How It Works:

Build your own UI with complete design control
Use Meld APIs to get quotes, countries, payment methods
Collect user information in your custom interface
Create widget sessions with your collected data
Launch provider widget for user to complete transaction
Track transactions via webhooks or API calls

Key Benefits:

✅ Complete design flexibility - build any UX you want
✅ Full branding control - looks 100% like your app
✅ Custom user flows - optimize for your specific users
✅ Advanced features - analytics, A/B testing, custom logic
✅ All transaction types - buy, sell, transfer (transfer only available in White-Label API)

Requirements:

⚠️ More development work - 2-4 weeks typical implementation
⚠️ API integration knowledge - REST APIs, webhooks, error handling
⚠️ Custom UI development - build your own interface

When to Choose White-Label API:

⭐ You want complete control over user experience
⭐ Custom branding is critical for your product
⭐ You need flexible user flows and advanced features
⭐ You have development resources for API integration
⭐ You want to optimize conversion with custom UX

Example: MetaMask uses White-Label API - they built a completely custom interface that matches their brand, with Meld APIs powering the backend crypto functionality. See it at MetaMask Portfolio.

➡️ Get Started with White-Label API

🔄 Comparison Table

Feature	Widget Integration	White-Label API
Setup Time	Minutes	2-4 weeks
Development Required	None	Significant
UI Customization	❌ Limited	✅ Complete
Branding Control	❌ Meld's branding	✅ Your branding
User Flow Control	❌ Standard flow	✅ Custom flows
Transaction Types	✅ Buy, Sell	✅ Buy, Sell, Transfer
Mobile Support	✅ Built-in	✅ Your implementation
Analytics/Tracking	❌ Basic	✅ Full control
A/B Testing	❌ Not available	✅ Your implementation

🚀 Ready to Get Started?

I Choose Widget Integration:

Setup Guide - Get your Meld Widget URL and start redirecting users
URL Parameters - Customize widget behavior
Testing Overview - Validate your integration

I Choose White-Label API:

White label API Overview - Understand the architecture
Build Custom UI - Step-by-step implementation
API Reference - Complete endpoint documentation

Still Not Sure?

Quick Start - Try both approaches in sandbox
FAQ - Common questions answered

Remember: There are exactlytwo integration options. Choose the one that matches your development resources and customization needs. You can always start with Widget Integration for speed, then upgrade to White-Label API later for more control.