Mezo Mainnet is Here

For too long, using Bitcoin meant giving it up. You could borrow against it, but only through custodians. You could spend it, but only by selling. For most Bitcoiners, the asset that was meant to empower them became one they had to part with just to access liquidity.

That changes now.

After extensive audits by Quantstamp and Thesis Defense, over $400 million in total deposits, $2 billion in MUSD borrowed, and 2,000,000+ testnet transactions, Mezo Mainnet is officially live.

And with it, MUSD, the first 100% Bitcoin-backed stablecoin, is available to anyone. You can now mint, spend, and earn with your Bitcoin without ever selling it.

Borrow MUSD at fixed rates as low as 1%* today.

What You Can Do Starting Today

For Everyday Bitcoiners

• Live off your Bitcoin stack. Unlock liquidity with Mezo Borrow. Mint MUSD by locking Bitcoin with up to 90% LTV and fixed-rate terms. Spend your MUSD in the Mezo Market on items like Ledger devices or gift cards fulfilled via BitRefill, with more options on the way.
• Grow your stack passively. Deposit Bitcoin into Upshift's automated vaults and earn yield through  MUSD deployment across the circular Bitcoin economy.
• Trade with capital efficiency. Execute perpetual futures on Velar using MUSD as collateral, access lending markets on Zerolend, or explore recursive strategies on BitFi—all through Mezo.

For Builders & Protocols

• Integrate sound money. MUSD brings Bitcoin's monetary properties to your application. Build payment flows, vault strategies, or trading systems on the only stablecoin backed by the world's hardest money. Check out the docs for more.
• Deploy with flexibility. Mezo's EVM-compatible architecture means your existing contracts work on day one, while native Bitcoin integration opens entirely new possibilities for cross-chain applications. For support, engage the Mezo Discord.
• Access deep liquidity. With over $50 million bridged from testnet and new deposits flowing daily, MUSD provides the liquidity foundation for building BitcoinFi applications.  Integrated wallets and bridging via Wormhole make getting started easy. Use Mezo’s native incentive engine, Tigris, to bootstrap and cultivate sticky users with programmable, onchain incentives.

MUSD and the First Full-Stack Bitcoin Economy

Mezo is the first full-stack Bitcoin economy, and it starts with MUSD, the first stablecoin fully backed by Bitcoin. Mint it. Spend it. Redeem it. No banks involved. No trust assumptions. No centralized custody.

Here's what makes it work: lock BTC in a collateralized vault, mint MUSD at fixed rates starting at 1%, and tap into up to 90% of your Bitcoin's value. Your Bitcoin stays yours. Your MUSD spends like dollars. And when you're ready, return the borrowed MUSD to reclaim your Bitcoin. Learn more about MUSD and its architecture here.

Every MUSD is redeemable for $1 worth of Bitcoin, with proof-of-reserves viewable 24/7 on-chain. No intermediaries. No rehypothecation. Just hard money, finally working as hard as you do.

This is where Mezo's vision comes alive.

Going live today is a self-reinforcing network where Bitcoin's value circulates without ever leaving the ecosystem: Borrow MUSD against your Bitcoin → Spend it or deploy it into Velar, Zerolend, or BitFi → Earn returns or access liquidity → Recycle gains into Upshift Vaults → Generate yield that stabilizes MUSD and deepens liquidity → Borrowing costs drop for everyone → Repeat

Coming Soon: → Spend MUSD via Fold → Earn BTC back with Lolli → Complete the cycle entirely within Bitcoin.

Each transaction strengthens the network, and every MUSD minted creates market demand for Bitcoin. Every vault deposit deepens liquidity. The result is a circular system where Bitcoin stays in motion, and its value compounds internally.

mats on Mainnet: What You Need to Know

If you participated in matsnet, your transition to Mainnet is seamless, but there are a few things worth knowing to maximize your mats rewards.

Your mats Journey

• All your pre-launch mats earned through deposits, referrals, and community activities become active on mainnet when you bridge your assets to Mezo.
• Auto-bridging users: Your deposited assets automatically transfer to Mainnet, and your mats activate instantly. You’ll see them in your Overview and in the Passport section (accessible by clicking your profile image in the top right corner).
• Opted-out users: Use the "Add Funds" button to bridge any amount to Mezo, and your mats will activate within minutes (about 5 minutes for most assets, potentially longer for BTC deposits).
• Bridge Bonus: Bridge $500 or more by June 30 to earn a mats bonus based on your total bridged USD value. The bonus will appear in your Rewards section. Opted-out users are still eligible if they bridge before the deadline.

For full details on how mats will get transitioned, read this blog.

What's Next

• Your mats are now part of an active and expanding rewards program on Mainnet.
• Earnings don’t stop at launch. The mats program is entering its next chapter. With matsnet snapshot complete, a new wave of mats will be earned on Mainnet through onchain activity, ecosystem engagement, partner integrations, and yield strategies. More details coming soon.
• Upshift Vaults, lending protocols, and trading venues like Velar and BitFi will be integrated into the mats rewards system.
• As Mezo grows, mats will span partner platforms and new markets, rewarding users who contribute to economic activity across the full BitcoinFi stack.
• Mezo Borrow starts with tBTC and native BTC. Support for cbBTC, solvBTC, swBTC, wBTC, and other variants is on track to follow in the coming weeks.

Getting started (new or existing users):

1. Bridge assets using "Add Funds" from Bitcoin or Ethereum networks
2. Watch your mats activate and appear in your Overview page
3. Borrow MUSD against your Bitcoin at fixed rates
4. Start spending across the circular economy

Coming soon, Tigris (Mezo's native incentive engine) will power validator rewards, protocol revenues, and ecosystem growth, creating sustainable incentives that compound over decades.

Launching something revolutionary always involves a few bumps along the way. At Mezo, we're committed to transparency and continuous improvement. As an early-stage product, you might encounter occasional issues or unexpected behavior, but rest assured—our platform has undergone thorough security audits, and your funds and transactions remain secure. Our team actively monitors feedback and works diligently to enhance your experience daily. If you encounter any bugs or have feedback you'd like to share, we invite you to join our Discord community—your input helps us improve Mezo continuously.

Mezo is Live. Start Borrowing.

Mezo is for anyone who believes money should serve people. Your Bitcoin can finally work without selling it. Borrow MUSD at 1% fixed rates*, spend it everywhere dollars work, and keep your Bitcoin exposure. Available now at mezo.org/home.

Mezo makes Bitcoin work like money. Now, let Mezo work for you.

🏦 Start borrowing • 📚 Read the docs • 💬 Join Discord • 🛡 View audits

Let's build the circular Bitcoin economy. Follow @MezoNetwork

* Disclaimer: The information provided in this post is for general informational purposes only. It does not constitute legal advice, investment advice, or other type of advice. Please consult with a qualified professional. The stated interest rate is fixed for the duration of an individual loan agreement once executed. However, the initial interest rate offered at the time of origination is subject to change and may vary based on prevailing market conditions, protocol parameters, and liquidity availability. Mezo does not guarantee the availability of any specific rate until a loan is finalized.

Mezo is built by Thesis, the venture studio behind tBTC, Fold, and other foundational Bitcoin infrastructure. Learn more at thesis.co.