Docs
Everything you need to know about using the platform
About
trnd.gg is a trading interface built on the Polymarket Builders Program. All trades are executed directly on Polymarket.
How It Works
Positions, order history, and funds are stored on-chain and fully accessible through Polymarket. This platform provides an alternative interface for interacting with the same underlying markets and infrastructure.
All trades done through your Polymarket Safe wallet are gasless. There is no need to hold MATIC or any native token for transaction fees.
Wallet Architecture
The wallet system consists of two components: a Magic EOA (Externally Owned Account) and a Safe Smart Wallet.
Magic EOA
The EOA is created via Magic upon registration and is linked to your email address. This is a standard Ethereum wallet with a private key that can be exported at any time.
Safe Smart Wallet
The Safe Wallet is created through Polymarket and holds all funds and positions. The EOA serves as the owner of the Safe, meaning only the EOA holder can authorize transactions.
Architecture Overview
- EOA: Controls wallet access and signs transactions
- Safe: Holds funds and positions, registered with Polymarket for trading
- Private Key: Exportable master key for the EOA
Important: Never share your private key. Anyone with access to it has full control over both the EOA and the Safe wallet.
What You See in the App
The address displayed in your profile is the Safe wallet address—use this for deposits. The EOA address is not shown directly. To find it, export your private key and import it into MetaMask or another wallet.
Fund Recovery
Funds can be accessed independently of this platform by exporting the private key and using any Ethereum-compatible wallet.
Exporting the Private Key
- Navigate to your profile menu
- Select 'Reveal Private Key'
- Complete email authentication via Magic
- Store the private key securely
Importing to External Wallet
- Open MetaMask or any compatible wallet
- Select 'Import Account'
- Enter the private key
Accessing the Safe Wallet
After importing the EOA, the Safe wallet can be accessed through the Safe app (app.safe.global). Connect using the imported EOA to view and manage all funds and positions.
Split & Merge
Split and Merge are mechanisms for converting between USDC and outcome shares.
Split
Converts USDC into equal quantities of YES and NO shares. Splitting $10 produces $10 worth of YES shares and $10 worth of NO shares.
Merge
Combines equal quantities of YES and NO shares back into USDC. Merging 10 YES and 10 NO shares returns $10 USDC.
Why Use Split & Merge
Split and Merge allow you to move between USDC and shares without using the order book. This can be useful when you want to acquire both outcomes at once, or when you want to exit a position by combining shares rather than selling them.
Trading
Two order types are available for trading prediction market shares.
Market Orders
Execute immediately at the best available price in the order book.
Limit Orders
Execute only at a specified price or better. The order remains open until filled or cancelled.
Order Book
Displays all open limit orders. Bids represent buy orders, asks represent sell orders. The spread indicates the difference between the highest bid and lowest ask.
USDC Types
USDC exists across multiple blockchains with different token contracts. Understanding these distinctions is important for deposits.
USDC.e (Bridged USDC)
USDC.e is USDC bridged from Ethereum to Polygon. The original tokens are locked on Ethereum while wrapped versions exist on Polygon. This is the token used for trading on Polymarket.
Other Variants
- Native USDC (Polygon) - Issued directly by Circle, different contract address
- USDC (Ethereum) - Original issuance on Ethereum mainnet
- USDC on L2s - Native versions on Arbitrum, Base, Optimism
- USDbC, USDC.b - Bridged variants on other networks
All variants maintain a $1 value but are not directly interchangeable. Conversion requires bridging or swapping.
Deposits & Withdrawals
Multiple methods are available for funding and withdrawing from the trading wallet.
Direct USDC.e Deposit
For users with existing USDC.e on Polygon: click 'Deposit', copy the wallet address, and send USDC.e directly.
Automatic Conversion
For other assets: click 'Deposit', select the token to send, and receive a deposit address for that specific token. Funds sent to this address are automatically converted to USDC.e.
Credit Card (Coming Soon)
Direct fiat purchases will be available in a future update.
Withdrawals
- Navigate to the Portfolio page
- Click 'Withdraw'
- Enter the destination address and amount
- Confirm the transaction
Withdrawals are processed as USDC.e on Polygon.