How Privy Streamlined Cross-Chain Wallet Funding with Relay

50 million wallets. Billions in transaction volume. One invisible bridging experience.

When Privy set out to simplify crypto onboarding, they knew they had to build a best-in-class solution—not just for wallet creation, but also how users swap or bridge assets across chains. That’s where Relay Protocol came in.

The Challenge: Demystifying Multichain for the Masses

Chains are confusing. For users new to crypto, the questions come fast:

• What is a blockchain?
• How do I move my USDC on Arbitrum when I need it on Optimism?
• What is gas, and why do I need it?

Privy enables developers to integrate user-controlled wallets seamlessly into any app. These wallets are provisioned behind the scenes when users sign in with familiar OAuth flows like Google, Twitter or Apple. But once created, non-Privy users often hit a wall when trying to fund their wallets—especially if they're unfamiliar with which assets live on which chains.

This becomes even more complicated when developers deploy their own chains, or when users send funds to the wrong network. Without technical expertise, it’s hard to recover from these errors.

That’s why Privy set out to build an elegantly intuitive solution for exchanging tokens between chains that would ideally feel just as invisible and user-friendly as their wallet experience.

The Solution: Relay's Invisible Bridging Layer

Relay offered the perfect solution. Already used by many of Privy’s customers—including leading consumer apps like Fantasy Top, Wolf Game, and Hologram—Relay made bridging intuitive and invisible.

When users initiate a transaction that requires moving funds across chains (e.g., bringing SOL into a Solana wallet funded via ETH or Polygon), Relay powers a one-click bridge in the background, transforming what was once a daunting process into a frictionless experience.

The user never has to think about bridges, chains, or gas. It just works.

The Impact

• 50 million+ accounts created using Privy wallets.
• Billions in transaction volume facilitated across Ethereum, Solana, and other major chains.
• 900+ production apps powered by Privy, with many leveraging Relay for frictionless cross-chain functionality.

Major players in both consumer and DeFi apps—OpenSea, Zora, Farcaster, Blackbird, Jupiter, Hyperliquid—rely on Privy. And increasingly, those same apps use Relay under the hood to remove all bridging pain for their users.

Why Relay?

• Battle-tested with leading consumer crypto apps.
• Seamless developer experience—Privy’s team praised the DX and said it "felt good out of the box."
• Highly recommended by shared customers, reinforcing confidence in the integration.

Relay became a natural extension of Privy’s core mission: to make Web3 as easy as Web2.

The Future

As more apps onboard the next billion users to crypto, invisible infrastructure like Privy + Relay will be critical. Bridging is no longer a UX bottleneck—it’s just another tap.