Save together in dollars. Keep your Bitcoin.

Savings circles where everyone pays the same MUSD each round and one person takes the pot. Your locked BTC is the promise: if someone stops paying, their Bitcoin covers it.

Savings circle
Each person pays
100 MUSD4 people
You lock
…✓
You get (round 2)
$300✓
✓Locked BTC covers anyone who misses a payment
Join · lock BTC
How it works

A savings circle, with Bitcoin as the guarantee

The circle your community already knows. Everyone pays in, one person takes the pot each round, and locked BTC replaces blind trust.

  1. 01

    Join and lock BTC

    Lock Bitcoin worth 150% of what you could owe. Mezo's price feed sizes it live.

  2. 02

    Pay each round

    Pay the same MUSD amount every round with one signature. No separate approval.

  3. 03

    Take the pot

    When your turn comes, you receive the whole pot. Payout order is join order.

  4. 04

    Stay protected

    If anyone misses a payment, their locked BTC pays it, plus a 10% penalty to the group.

150%
BTC collateral by default
1
signature per payment
0
admin keys or custodians
2–12
people per circle
Why Round

Built so the circle keeps its promise

Traditional circles break when someone takes the pot early and stops paying. Round removes that risk without adding a middleman.

Your Bitcoin stays yours

You never sell your BTC to save in dollars. It sits in the contract as your guarantee and comes back after your last payment.

Round 13 payments left
Round 31 payment left
DoneBTC unlocked
What you still owe, covered 1.5× by your BTC

Save in dollars

Every payment and payout is in MUSD, Mezo's Bitcoin-backed dollar.

One signature to pay

MUSD supports permit, so paying is one signature and one transaction.

Nobody in charge

No owner, no admin keys, no upgrades. The rules are the contract.

Anyone can settle

When a round is due, any member can trigger the payout. No keeper needed.

Every move on-chain

Joins, payments, payouts and defaults are public events you can verify.

Fair to honest members

A defaulter's penalty is shared with everyone who kept their promise.

Default protection

Someone takes the pot and stops paying? The circle still pays.

  • A grace period first

    A missed payment only counts once the round and its grace period have passed.

  • BTC pays the gap

    The contract values the defaulter's BTC with Mezo's price feed and sends the missed share to the recipient.

  • The group is made whole

    A 10% penalty is split among honest members. The defaulter's own payout is cancelled.

100 MUSD100 MUSD₿from A's collateralpot$300round 2 potABCD✗ missed★ receives
Round 2: A already took the pot in round 1, then skipped. B still gets the full pot.
Who it's for

Different names. The same promise.

Savings circles are widely used across Africa, Latin America and Asia. Round keeps the habit and adds a guarantee that doesn't depend on knowing everyone.

  • Ajo & EsusuNigeria
  • SusuGhana & the Caribbean
  • TandasMexico & Latin America
  • Chit fundsIndia
  • HuiChina & the diaspora
  • PaluwaganThe Philippines
FAQ

Questions, answered

The short version: your BTC is the promise, and the contract keeps it.

What happens if someone doesn't pay?

After the round ends and the grace period passes, anyone can settle. The contract takes the missed amount plus a 10% penalty from that member's locked BTC. The recipient gets BTC worth the missed payment, and the penalty is shared with honest members.

What if the price of Bitcoin drops?

Collateral starts at 150% of what you could owe, and you can top it up any time. If BTC falls so far that a defaulter's collateral can't cover a payment, the contract pays out what is there and shows the shortfall openly.

Who holds the money?

Nobody. Payments and collateral sit in a public smart contract with no owner and no admin keys. Payouts follow the rules in the contract, and anyone can trigger them.

Do I have to sell my Bitcoin?

No. Your BTC is locked as a guarantee and you can withdraw it after your final payment, or when the circle ends.

What is MUSD?

MUSD is Mezo's dollar stablecoin, backed by Bitcoin. Every contribution and payout in Round is in MUSD.

Can I use real money?

Not yet. Round runs on Mezo testnet with test BTC and test MUSD, which have no value.

Start a circle with your people today

Pick an amount, share the link, and let Bitcoin keep everyone's promise.