What Is Bitcoin DeFi: The Rise of BTCFi

For years after its introduction in 2009, the Bitcoin (BTC) blockchain remained an environment used exclusively for asset transfers and storage. The rise of decentralized finance (DeFi) on Ethereum (ETH) as an alternative to traditional financial systems in 2017–2018 seemed to ignore Bitcoin, the world's oldest blockchain, and its vast potential. Many at that time assumed that Bitcoin's relevance in the industry would decline, as smart contracts and decentralized applications (DApps) elevated the status of Ethereum. However, it didn't take long for the Bitcoin community to come back with answers, some utilizing sidechains and other Layer 2 solutions, and others leveraging the chain's own native mechanisms.

In the past few years, the ecosystem of apps and decentralized platforms that enable Bitcoin-focused DeFi — or BTCFi, as it's come to be known — has flourished. BTCFi is now a growing world, featuring efficient payment solutions, smart contract sidechains, fungible token protocols and even a technology for issuing Bitcoin-based NFTs. 

The exciting world of BTCFi still lacks the sophistication and programmability muscle of Ethereum's DeFi sector, but it's catching up fast. In this review, we’ll take a closer look at some of the critical apps and platforms that power BTCFi, a sector that leverages the potential of the world's largest crypto asset, the BTC coin. We’ll also discuss the key differences between the emerging BTCFi ecosystem and the established Ethereum DeFi universe.

Key Takeaways:

• Bitcoin's DeFi ecosystem, known as BTCFi, is made up of a variety of projects that utilize smart sidechains, scalable payment solutions, processing engines compatible with both Bitcoin and Ethereum, wrapped token solutions and native Bitcoin NFTs.

• Some of the major projects are Taproot Assets, BitVM, Bitlayer, Bitcoin Ordinals and the Runes protocol.

• The development of the BTCFi ecosystem was turbocharged after Bitcoin's Taproot upgrade in November 2021.