Language	Code Coverage
Java
Rust
Solidity

xcall-multi is a cross chain messaging service built to mimic regular transaction flows across any interoperable solution.

For full xcall-multi specification see xcall-multi Spec.

See Live Contracts for current testnet and mainnet deployments of the xcall-multi contracts on all chains where xCall is deployed.

For building dapps with xcall-multi see official developer docs.

• IBC
  • Rust
  • Java
• BTP is supported natively and does not need a connection contract.
• Centralized Connection
  • Java
  • Solidity
  • Rust
• Wormhole
  • Solidity
• LayerZero Adapter
  • Solidity

If xcall-multi is deployed, anyone can create a new connection contract to relay messages between xcall-multi contracts. To do this a connection contract has to be developed and deployed on both sides. The base design for a connection can be found in the xcall-multi docs