HOST is Vitruveo’s protocol-level HTTP Outbound Service Trigger, enabling smart contracts to invoke validator-signed HTTP webhooks during transaction execution.
HOST (HTTP Outbound Service Trigger) is a native Vitruveo protocol capability comprising a precompile and registry. Authorized contracts register requests and invoke HOST so validator nodes perform HTTP/S calls to designated endpoints; current documentation describes validator/developer/contract authorization and encrypted secret support for agentic and off-chain workflows.