Connext provides the simplest possible experience for building xchain applications (xApps).
Building a xApp requires only two straightforward steps:
xReceivein the destination chain contract. This is the function that receives the payload you pass across chains.
xcallon the origin chain, passing in your payload and relayer fees.
Important Concepts With Guides
Fast Path vs. Slow Path
Take a moment to review the Transaction Lifecycle. Here we introduce the concept of "fast path" and "slow path" (authenticated) transfers. The differentation is crucial to understand for any cross-chain project. Then, try it out with our Authentication guide.»Authentication
Check out our guide on what these are and how to estimate them.»Estimating Fees
You should always build in contingency for failed calls.»Handling Failed xCalls
Dive into the current status of an
You can even chain
xcalls across domains! 😮
Have questions or need support? Our core team and vibrant community members are highly active in our Discord server!»Chat with us!