Welcome to Ethereum Alarm Clock’s documentation!

The Ethereum Alarm Clock (EAC for short) is a collection of smart contracts on Ethereum that aims to allow for the scheduling of transactions to be executed at a later time. It is a “ÐApp” in the truest sense of the word since it has the qualities of being trustless, censorship resistant and decentralized. No matter who you are or where you are located, there is no way for anyone to stop you from scheduling a transaction or running an execution client. There is no priviledged access given to any party, not even to the developers =)

On a high level it works by some users scheduling transactions and providing the execution details and payments up front, while other users run execution clients that scan the blockchain looking for upcoming transactions. When the execution clients find upcoming transactions they keep track of them and compete to claim and execute them – whoever gets the rights to the execution gets paid the exeuction reward.

The code for this service is open source under the MIT license and can be viewed on the github repository. Each release of the alarm service includes details on verifying the contract source code.

For a more complete explanation of what this service does check out the Introduction.

If you are a smart contract developer and would like to see an example for how you can use the EAC smart contracts from your own code see Quickstart.

If you are looking to acquire a deeper understanding of the architecture then it is recommnended you skim the documentation in full. It is recommnended to also view the source code.