Flash loan protocol on Bitcoin L2. Zero collateral. Built on @Stacks
Joined December 2025
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- Following14
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Flashstack retweeted
3 BTC in rewards for borrowing and providing liquidity with USDCx, over the next 90 days on Stacks.
The program rewards the primitives that make Stacks DeFi stronger.
Flashstack retweeted
I really do love how things are aligning on Stacks.
S/O to the BD team for the distribution efforts 🙌
Bitcoin Staking is how people find Stacks. Bitcoin-native finance is why they stay. Via @alexlmiller
Flashstack retweeted
BitGo has integrated the sBTC bridge.
Institutions can now convert BTC to sBTC and back directly within @BitGo.
Institutional-grade custody 🤝 Bitcoin-native finance.
Flashstack retweeted
This is the real unlock.
@Stacks isn’t just adding yield on top of BTC — it’s creating the first native, Bitcoin-secured base rate.
$stBTC becomes the floor, and everything else builds on top of it.
This is a natural fit for Bitcoiners to dip their toes in to learn what real Bitcoin yield feels like.
Flashstack retweeted
Liquid staking is proven infrastructure on other chains. It never existed for Bitcoin because Bitcoin never had staking to build it on.
That's changing with stBTC from @StackingDao and @TychoOnnasch 🟩
Flashstack retweeted
Bitcoin Layer comparison update June, 2026 from @kucoincom:
Stacks is the most established Bitcoin L2 👀
Try it: flashstack.vercel.app
Build on it: one Clarity function → DM us → whitelisted same day
Docs + source: github.com/mattglory/flashst…
Built on @Stacks
Integrated with @bitflow @ALEXLabBTC @VelarProtocol
First flash loan protocol on Bitcoin L2.
Grateful to @StacksEndowment and @StacksOrg for backing this before it was proven.
If you're building on Bitcoin L2 — their grants program is real. Apply.
Don't want to build? Just earn.
Deposit STX or sBTC → earn 0.05% on every flash loan → withdraw anytime.
Share price is a live on-chain read. Single asset. No external oracle needed.
What's live on mainnet today:
→ STX + sBTC flash loan engines
→ LP pools — earn yield on every loan
→ Live arb receivers for Bitflow, Velar and ALEX
→ On-chain LP oracle for lending protocols
→ Production app — no code needed to try it
9 contracts. All open source.
Not testnet. Not simulated. Real transactions, independent wallets:
First sBTC flash loan on Bitcoin L2 →
explorer.hiro.so/txid/0x67f0…
Live Bitflow arb — @hillaryhardy12 receiver, her own wallet →
explorer.hiro.so/txid/0x865d…
5 confirmed mainnet loans from external developers.
Flash loans unlocked billions in arbitrage and liquidations on Ethereum.
Bitcoin never had them.
Not because it wasn't possible.
Because nobody built it.
We did.
Two weeks ago, Ian had never written a line of Clarity.
He followed our docs, deployed his own flash loan contract under his own wallet, and executed a real mainnet loan in one sitting.
That's what we built the documentation to enable.
Been building this quietly for months.
Today FlashStack goes public.
First flash loan protocol on Bitcoin L2 — borrow STX or real Bitcoin with zero collateral. Don't repay, the whole transaction reverses like it never happened.
🧵
Flashstack retweeted
Stackers: A new SIP draft (PoX-5) is live, proposing Bitcoin Staking on Stacks.
This is your opportunity to read, ask questions, and weigh in: forum.stacks.org/t/introduci…
Join us here on Friday for SIP Office Hours to learn more from the authors and ask questions!
Flashstack retweeted
BIG news.
@UTXOmgmt, the Bitcoin native asset management arm of Nakamoto Inc., is the inaugural participant in Bitcoin Staking on Stacks.
This means institutional BTC earning BTC yield, without ever leaving the base layer.
Flashstack retweeted
Stacks keeps expanding its Bitcoin economy.
• Bank of Punjab signed first national bank MOU in Stacks history
• Zest launched Bitcoin Collateral Vaults on Bitcoin L1
• 300K STX deposited into Zest lending market in single tx
Institutional adoption + BTCFi growth accelerating.
Flashstack retweeted
Zest Protocol is building the #1 use case for Bitcoin: lending and borrowing.
Hyperithm, who backed Zest Protocol early, sees the team with the track record to win.
Flashstack retweeted
You can't build the Bitcoin economy on infrastructure that doesn't scale.
Stacks core contributors explain the goal of 100x-ing throughput to support growth in user activity.
