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  • Important Concepts
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  • Relayer Fees
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  1. Developers

Introduction

PreviousFAQNextQuickstart

Last updated 11 months ago

Connext provides the simplest possible experience for building xchain applications (xApps).

Building a xApp requires only two straightforward steps:

  1. Implement xReceive in the destination chain contract. This is the function that receives the payload you pass across chains.

  2. Call xcall on the origin chain, passing in your payload and relayer fees.

Get started with the !


Important Concepts

Fast Path vs. Slow Path

Take a moment to review the . Here we introduce the concept of "fast path" and "slow path" (authenticated) transfers. The differentiation is crucial to understand for any cross-chain project. Then, try it out with our .

Relayer Fees

Check out our and how to estimate them.

Handling Failures

You should always build in contingency for .

Tracking xCalls

Nested xCalls

Chain Abstraction


Help

Have questions or need support? Our core team and vibrant community members are highly active in our Discord server!

Dive into the c.

You can even s across domains!

Create without having to switch chains! 🤯

🤝
Quickstart
Transaction Lifecycle
Authentication guide
guide on relayer fees
failed calls
urrent status of an xcall
😮
chain xcall
seamless cross-chain interactions
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