Today, we share a live public demo of the first based L3 appchain. 

This is a landmark moment for Spire as we demonstrate the future of Ethereum rollups: synchronous composability.

Spire is building the Based Stack. spire.dev

Launching an appchain is often prohibitively expensive.

With Spire, however, builders can easily deploy their own L3, inheriting the composability of its underlying L2 and toolings of the Ethereum ecosystem.

This means no expensive oracles, custom explorers or bespoke infrastructure. Just out-the-box deployment saving millions of dollars.

The demo shows a based L3 appchain synchronously reading data from its L2.

This may seem simple, but the implications are significant.

It previews an onchain world of millions of appchains operating in sync and secured by a single unifying network: Ethereum.