> For the complete documentation index, see [llms.txt](https://jeff-world.gitbook.io/jeff-world/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jeff-world.gitbook.io/jeff-world/introduction/trade-usdjeff-base.md).

# Trade $JEFF (BASE)

$JEFF is the primary utility token essential for enjoying JEFF World. Acquire more tokens to enhance your avatar, unlock advanced world-play, and earn greater rewards.

## ✅ Requirements (Before You Begin)

* Confirm your **JEFF Wallet (BASE)** address on JEFF World [**My Page**](https://jeffworld.io)
* Prepare a small amount of **Base ETH** (for transaction gas fees)
* Set up your **2nd password** on JEFF World(Mypage - Settings)
* Check $JEFF Contract Address(CA): <mark style="background-color:green;">**0x87682C4813B7d43447C6dcb8eD6b4a599C9CEC7E**</mark>

## 📌 How to Buy $JEFF on DEX

1. **Go to** [**Uniswap (Base)**](https://app.uniswap.org/explore/tokens/base/0x87682c4813b7d43447c6dcb8ed6b4a599c9cec7e), search and select $JEFF token.
2. Purchase **$JEFF** using your personal wallet (e.g., MetaMask).
3. **Add $JEFF to MetaMask wallet**

   * In MetaMask: Tokens Tab → Click Dot  Menu → \[Import Tokens] → Custom Token Tab → Enter CA (Token Symbol & Decimals autofill) → Click Next → Confirm

   <figure><img src="/files/DV01A8xtmmhCkqR0oj2t" alt="" width="563"><figcaption></figcaption></figure>
4. After purchasing **$JEFF**, open it in MetaMask and select **\[Send]**.
5. Enter your **JEFF Wallet (BASE)** address from JEFF World **My Page** as the recipient (To).

<figure><img src="/files/9qK9VxMYTLRJY7PgEF1G" alt="" width="563"><figcaption></figcaption></figure>

6. Input the amount of **$JEFF** to send, confirm the transaction, and pay a small ETH gas fee.
7. After completion, your **$JEFF balance** updates automatically on your JEFF World **My Page**.

<figure><img src="/files/NkDAk0eFXRujm8TFlTQt" alt=""><figcaption></figcaption></figure>

## 💸 How to Sell $JEFF on DEX

1. Visit [**JEFF Gate → Transfer**](https:jeffworld.io) to transfer **$JEFF** from JEFF World to your personal wallet.\
   *(For detailed Transfer instructions, refer to the JEFF Gate - Transfer page.)*
2. **Add $JEFF to MetaMask wallet** (if not already added):
   * In MetaMask: Tokens Tab → Click Dot  Menu → \[Import Tokens] → Custom Token Tab → Enter CA (Token Symbol & Decimals autofill) → Click Next → Confirm

<figure><img src="/files/DV01A8xtmmhCkqR0oj2t" alt="" width="563"><figcaption></figcaption></figure>

3. Go to [Uniswap (Base)](https://app.uniswap.org/explore/tokens/base/0x87682c4813b7d43447c6dcb8ed6b4a599c9cec7e), search and select **$JEFF** token.
4. Sell your **$JEFF** tokens directly from your personal wallet on Uniswap.

## 🔄 Trading $JEFF on Centralized Exchanges (CEX)

To trade **$JEFF** on CEX, bridging between Base chain and ETH mainnet is required using [**JEFF Gate → Bridge**](https://jeffworld.io):

* From JEFF World (BASE) to CEX → Bridge to **ETH Mainnet**
* From CEX to JEFF World → Bridge to **BASE Chain**

**Supported Exchanges:**

* [**Bitmart** *(ETH Mainnet)*](https://www.bitmart.com/trade/en-US?type=spot\&symbol=JEFF_USDT)
* [**Bybit**](https://www.bybit.com/en/trade/spot/JEFF/USDT) **/** [**GOPAX**](https://www.gopax.co.kr/exchange?market=jeff-krw) *(ETH Mainnet, Korea only).*

Enjoy trading, and maximize your rewards in JEFF World! Let's Chill & Earn together 🐥🌟