Hedera Schedule Service (HSS) System Contract

The Hedera Schedule Service system contract at 0x16b exposes functions for creating and managing scheduled transactions from within Solidity. It supports:

• HIP-755: Authorizing and signing schedules from contracts
• HIP-756: Scheduling native HTS token creation (createFungibleToken, createNonFungibleToken, etc.)
• HIP-1215: Generalized scheduled contract calls — schedule arbitrary calls to any contract (or self) for DeFi automation, vesting, DAO operations

Quick Reference

Contract address: 0x16b

Imports:

import {HederaScheduleService} from "@hashgraph/smart-contracts/contracts/system-contracts/hedera-schedule-service/HederaScheduleService.sol";
import {IHRC1215ScheduleFacade} from "@hashgraph/smart-contracts/contracts/system-contracts/hedera-schedule-service/IHRC1215ScheduleFacade.sol";