Swap & Treat

Collect candy ➡️ Unwrap a surprise

Each candy gives you a chance to win up to 99 USDC or a OneKey hardware wallet worth up to $299.

CollectDates to be announced
Unwrap—
Rewards—

Prizes you could win

USDC$1–99
Pro 2$299
Pro$278
Classic 1S$99
Classic 1S Pure$79
Classic 1S Pure BTC-Only$79

New users only

Swap for candy

Try stablecoin swaps with 0 service feesSwap stablecoins on the same chain, across all EVM chains supported in OneKey App. For example: USDC → USDT on BNB Chain.0 service fee details ↗
Try swapping stablecoins and other tokens with 0 gas feesSwap stablecoins and other tokens on the same chain, for example USDT → BNB on BNB Chain. Receive stablecoins in a new wallet with no gas balance to get started; no native tokens needed.See the FAQ for gas subsidy providers

Complete two successful orders on the same day, each worth at least $100. Earn 1 swap candy per qualifying day.

Download OneKey

Everyone

Invite for candy

Friend candies are unlimited. The more friends complete the experience, the more candies you earn.

Register and share your invite link
Friends accept your invite and register for Swap for candy
Each day a friend completes both tasks, you each earn one candy

My candy

Checking…

Swap candyNew users: 1 per qualifying day

Referral candyFrom qualifying friends, no limit

Each qualifying swap day and each qualifying friend lights up a candy. More candy, more chances.

Join now

Frequently asked questions

Campaign & prizes

What can each candy reveal?

Timeline

Zero-fee details

Which networks and swap providers support 0 gas fees?

Supported networks: Ethereum, Arbitrum One, BNB Smart Chain, Polygon, Base.

Providers: ChangeHero, Changelly, Houdi, RocketX, HifiSwap and SWFT.

For same-chain swaps on these networks through these providers, you can use the gas subsidy when available in the App. A new wallet without gas can receive stablecoins to get started, without preparing the native token. Availability and applicable conditions are shown on the App confirmation screen.

When can I unwrap my candy and receive prizes?

Unwrap your candy during the period shown in the schedule. Each candy has a chance to win. Hardware wallet winners must sign in to the Redeem page with their registered X account and submit shipping details before unwrapping closes. USDC prizes will be sent to the registered Arbitrum address within 3 days after unwrapping closes; hardware shipments will be arranged during the same period. Unopened candy is not eligible for prizes after the deadline.

Claim your hardware wallet ↗

Swap for candy

Who can register, and when should I do it?

Register before completing your tasks. Eligibility is checked using App activity linked to your registered address. If activity is found, register within 24 hours of the first recorded activity. Your address must have no successful OneKey Swap or Bridge orders before registration. You may still register if no linked activity is found. No invitation is needed. If you accept an invitation when registering, you and your inviter each earn candy when you complete both daily tasks.

What are the two daily tasks?

During the collection period, complete two separate successful orders on the same UTC day, each worth at least 100 USD: • One same-chain stablecoin pair swap with 0 service fees on an EVM chain supported in OneKey App. • One same-chain swap of a non-stablecoin pair on Ethereum, Arbitrum One, BNB Smart Chain, Polygon or Base. Cross-chain orders do not count. Complete both to earn one swap candy that day.

How do I keep earning candy during the campaign?

Which swaps count after I register an address?

What if a swap fails, is cancelled or I swap many times?

Why hasn’t my task progress updated?

Invite for candy

What should I prepare as an inviter?

What must my friend do for the invitation to count?

Your friend signs in with X, accepts your invitation and registers for Swap for candy. On the same UTC day, complete two separate orders of at least $100 each: a same-chain stablecoin swap with 0 service fees, and a same-chain non-stablecoin-pair swap on Ethereum, Arbitrum One, BNB Smart Chain, Polygon or Base. Cross-chain orders do not count. When both tasks are complete, you each earn one candy.

How many candies can one friend earn me?

Can I swap for candy and invite friends too?

Where can I see my friends' progress and candy?

Can I earn both swap candy and referral candy?