Cross-chain Development
There are two primary ways to enable communication across chains with Wormhole.
- 1.
- 2.
The components outlined in blue are those that must be implemented by the developer
Automatic Relaying is currently only supported for EVM environments.

Automatic Relayer
With Automatic Relaying, only the contracts need to be developed. Leave the message delivery to a service provider.

Specialized Relayer
With Specialized Relaying, the developer can communicate with any blockchain Wormhole supports and has the freedom to choose a delivery strategy.
Last modified 3mo ago