Stacks

Stacks

Smart Contracts and DeFi Secured by Bitcoin

Launch Year
2021
Consensus
Proof of Transfer (PoX)
Max Supply
1,818,000,000 STX
Block Time
~10 minutes
STX
STX
Stacks
Price
24h Change
Market Cap
Volume (24h)
Circulating Supply
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Stacks Price Chart

STX / USD
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Data by CryptoCompare

About Stacks

Stacks (STX) is a Layer-2 network for Bitcoin that enables smart contracts and decentralized applications secured by Bitcoin's proof-of-work. Unlike other Bitcoin Layer 2s, Stacks uses a unique consensus mechanism called Proof of Transfer (PoX) where miners spend real Bitcoin to mine STX, and STX stackers earn BTC as rewards — creating a direct economic connection between Stacks activity and the Bitcoin network. The Clarity smart contract language used on Stacks is decidable (you can know exactly what a program will do before running it), making smart contracts more predictable and auditable. Stacks brings DeFi, NFTs, and Web3 apps to Bitcoin.

History

2017
Blockstack (later Stacks) founded by Muneeb Ali and Ryan Shea; early blockchain identity system developed.
2019
Blockstack conducts the first SEC-qualified token offering, raising $23M in STX.
2021
Stacks 2.0 mainnet launches with Proof of Transfer consensus and Clarity smart contracts.
2023
Stacks Nakamoto upgrade planned to enable 100% Bitcoin-finality for all Stacks transactions.
2024
Stacks Nakamoto upgrade launches, making all Stacks transactions settle on Bitcoin. sBTC (1:1 Bitcoin-backed asset) launches.

How to Swap STX

Exchanging Stacks (STX) on SyntheticSwap requires no account creation or identity documents. Open SyntheticSwap, choose STX as your source or target coin, provide your destination wallet address, and review the floating rate displayed. After sending STX from your personal wallet to the deposit address, the swap processes automatically and your chosen asset is delivered directly to your wallet. SyntheticSwap never holds your funds at any point during the process.

How to Store STX

STX is stored in Stacks-compatible wallets. Xverse (mobile and browser extension) is the most popular Stacks wallet. Leather (formerly Hiro Wallet) is another major option. Both support Stacks NFTs, DeFi, and Bitcoin integration. Ledger hardware wallets support STX via Ledger's Stacks app.

Frequently Asked Questions