Contracts

A reference for Omni's user facing solidity contracts and libraries.

OmniPortal

• On-chain gateway into Omni's cross-chain messaging protocol
• Call contracts on another chain (xcall)
• Calculate fees for an xcall
• Read xmsg context when receiving an xcall

IOmniPortal.sol Reference Solidity Interface

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XApp

• Base contract for Omni cross-chain applications
• Simplifies sending / receiving xcalls

XApp.sol Reference Solidity Interface

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XTypes

• Defines core xchain messaging types for the Omni protocol.
• XTypes.MsgShort is the only type end users interact with. It provides context

XTypes.sol Reference Solidity Code

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