> For the complete documentation index, see [llms.txt](https://docs.onto.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.onto.app/guides/discover/binance-smart-chain-bsc/o3-swap-user-guide.md).

# O3 Swap User Guide

{% hint style="info" %}
**Reminder:** Operations require transaction fees. Please prepare enough BNB in advance to avoid transaction failures.
{% endhint %}

### Download ONTO Wallet and Create BSC Wallet

{% content-ref url="/pages/-MPJRUPoLFAVEtAK6935" %}
[Download ONTO App and Create ONT ID Wallet](/guides/app-basics/how-to-register-an-account-on-onto-wallet.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MeKrRpOaa1LPo5IWpjt" %}
[Add Chain Wallet in ONT ID Wallet](/guides/wallet-management/add-chain-wallet-in-ont-id-wallet.md)
{% endcontent-ref %}

### Sending and Receiving Binance Smart Chain Assets

{% content-ref url="/pages/-MOZCd9s70mDDZsTlNHX" %}
[Sending and Receiving BNB Smart Chain (BSC) Assets](/guides/assets/how-to-use-onto-wallet-for-binance-smart-chain-transfers.md)
{% endcontent-ref %}

### Open O3 Swap

* Click "**Discover**"
* Search for O3 Swap and click "**Confirm**" to enter the dApp

![](/files/mXES1Y31NFyS2t6mEae3)

### Connect your walllet

* Click the "**Connect**" button
* Choose BSC chain wallet to link

![](/files/c3q0evf0sCwiSrwcmOUb)

### Exchange O3 

* Use BNB to exchange O3

![](/files/dJPVKn0WquD4lyh7WjO4)

* Enter the amount of BNB used for exchange
* Click "**RFQ**" to make sure that the number of exchanged O3 is 40
* Click "**Confirm**"

![](/files/1UJYJPhg9TUTZuSbJWEt)

* Click "**Confirm**" on the "Transaction Details" interface
* Enter the wallet password and click the arrow

![](/files/0a7yzE6fSKyWVnZXEzbr)

### Use O3 for staking 

* Click "Vault"
* Link the wallet

![](/files/iBKSpbTdW0W3zznAkMV7)

* Click "**Stake**" 
* Enter the amount of pledged O3 and click "**Confirm**"

![](/files/XwY1YKO2ZapsRCayF4wr)

* Click "**Approve**" 
* Click "**Confirm**" on the "Approval Confirmation" interface 
* Enter the wallet password and click the arrow

![](/files/uAcni36aCZLqcO1fRuOL)

* After approving you need to click "**Stake**" again
* Enter the wallet password and click the arrow

![](/files/jTMR2yVVi2RPlq96V7by)

{% hint style="info" %}
The staking O3 income will enter the lock-up after clicking "claiming". You need add and stake CAKE-O3 LP first to unlock O3 Detailed unlock tutorial link: <https://docs.o3swap.com/o3-swap-user-guide/unlock-o3-bep-20>
{% endhint %}