ETH vs TBASE Tokens

Dual Currency System

AstaVerse supports two payment methods on Base Sepolia testnet:

Currency	Type	Use Cases	Availability
ETH (BaseETH)	Native blockchain currency	Gas fees, auction bids, platform fees	Default wallet currency
TBASE	Custom ERC-20 token	Auction bids, platform fees	Claim from faucet

BaseETH (Ethereum on Base)

What It Is:

• Native cryptocurrency of Base Sepolia network

• Same ETH used on Ethereum mainnet (testnet version)

• Required for all gas fees (transaction costs)

• Can be used for auction bids and platform fees

Where to Get It:

Option 1: Integrated Faucet (Recommended)

Access: Navbar → "Faucet" button
   ↓
Opens in new tab
   ↓
Click "Claim ETH"
   ↓
Receive 0.1 testnet ETH instantly
   ↓
Available in wallet immediately

Option 2: External Faucets

• Base Sepolia Faucet: https://portal.cdp.coinbase.com/products/faucet

• Alchemy Faucet: https://www.alchemy.com/faucets/base-sepolia

• QuickNode Faucet: https://faucet.quicknode.com/base/sepolia

Current Balance:

• View in MetaMask wallet

• Shows in top-right of AstaVerse navbar

• Example: 0.0845 ETH

TBASE Token

What It Is:

• Custom ERC-20 token deployed on Base Sepolia

• Alternative payment method to ETH

• Only for auction bids and platform fees (not gas)

• Equal value to ETH on testnet (1 TBASE = 1 ETH)

Token Details:

Name: TBASE Token
Symbol: TBASE
Decimals: 18
Network: Base Sepolia Testnet
Contract: [View on Explorer]
Type: ERC-20

Where to Get It:

Integrated Faucet (Only Source)

Access: Navbar → "Faucet" button
   ↓
Opens in new tab
   ↓
Click "Claim TBASE"
   ↓
Receive 1000 TBASE instantly
   ↓
Auto-added to MetaMask

Adding TBASE to MetaMask:

1. Open MetaMask
2. Click "Import tokens"
3. Paste TBASE contract address
4. Token appears in wallet

Current Balance:

• View in MetaMask under "Tokens"

• Shows in auction bid interface

• Example: 500.00 TBASE

ETH vs TBASE: When to Use Each

Scenario	Use ETH	Use TBASE
Gas Fees	Always required	Cannot pay gas with TBASE
Auction Bids	If seller accepts ETH	If seller accepts TBASE
Platform Fees	Default payment	Alternative payment
You have more of it	Use what you have	Use what you have
Seller specifies	ETH-only auctions	TBASE-only auctions

Important Notes:

Each auction accepts ONE currency only

• Sellers choose ETH or TBASE when creating auction

• Check currency before bidding

• Cannot bid with wrong currency

Gas fees ALWAYS in ETH

• Even if bidding with TBASE, you need ETH for gas

• Keep minimum 0.001 ETH for transactions

• Gas costs are separate from bid amount

Testnet Only

• Both currencies have zero real value

• Free to claim from faucet

• Perfect for testing without risk