OpenZeppelin Relayers and Monitor are now Open Source

Introducing the alpha release of Open Source Relayers & Monitor for EVM networks, Solana, and Stellar. Get your hands on fully customizable, self-hosted dev tooling for secure onchain automation.

The foundational layer of ZeppelinOS is the Kernel: an on-chain set of libraries offering common...

Announcements Products

As you are beginning with Ethereum development, and after going through some of the many excellent...

Security Insights

This is the second part of our Ethereum introduction guide. If you haven’t read part 1, I highly...

Security Insights

Two months ago I was asked to build an Ethereum web application as a work test to join Zeppelin,...

Security Insights

We’ve already discussed the technical details of ZeppelinOS and published a first draft of the...

Announcements Products

The Simple Token team asked us to review and audit their Simple Token Sale contracts. We looked at...

Security Audits

Today we witnessed a possible major attack on the Parity MultiSig contract. This follows a previous...

Security Audits Rust

The CoinCircle team asked us to review and audit their UnikoinGold token and distribution...

Security Audits

In May of 2016, Peter Vessenes analyzed a sample of smart contracts published online to assess...

Security Insights

The BitClave team asked us to review and audit their Consumer Activity Token (CAT) contracts. We...

Security Audits

Public token sales have successfully bootstrapped a growing number of blockchain projects,...

Announcements Products

Zeppelin is proud to be sponsoring Devcon3. To celebrate, we are releasing a CTF hacking game at...

Events