
Stacks
Stacks is a Bitcoin Layer 2 that runs Clarity smart contracts and anchors its state to Bitcoin through a Proof of Transfer consensus.

What is Stacks?
Stacks is a Bitcoin Layer 2 that anchors its state to Bitcoin blocks using a Proof of Transfer consensus, letting Bitcoin holders earn yield by stacking STX. Smart contracts are written in Clarity, a decidable language with no compiler, and can read Bitcoin state directly. The Nakamoto upgrade enabled faster blocks and sBTC, a 1:1 Bitcoin-backed asset that powers DeFi on Stacks.
Web3 dapps and developer tools related to Stacks
Discover blockchain applications that are frequently used with Stacks.
Developer resources from Alchemy

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Launching support for account abstraction on Zora and Frax
We are excited to announce Account Abstraction support for Frax and Zora, two new layer 2 blockchains built on top of Optimism’s Superchain ecosystem.

How Goldsky kept transactions flowing with zero downtime
Goldsky migrated its Compose bundler and paymaster to Alchemy and built a provider abstraction layer that makes failover a single environment variable change—no code deploy, no downtime.
Stacks alternatives
Explore web3 competitors and apps like Stacks.
App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

