> ## Documentation Index
> Fetch the complete documentation index at: https://docs.olydash.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Gasless Trading

> Trade prediction markets without paying gas fees

## Overview

Olydash enables **gasless trading** on Polymarket. You don't need MATIC or ETH for gas — all transactions are relayed through your Gnosis Safe wallet.

## How It Works

1. **Gnosis Safe** — When you connect, Olydash deploys a Safe smart wallet for you on Polygon
2. **Relayer** — Trade transactions are sent through the Polymarket Builder Relayer, which covers gas costs
3. **CLOB orders** — Market and limit orders are signed client-side and submitted to the Polymarket CLOB without on-chain gas

## What's Gasless

| Action                   |      Gas Required?      |
| ------------------------ | :---------------------: |
| Place market order       |            No           |
| Place limit order        |            No           |
| Cancel order             |            No           |
| Safe wallet deployment   |            No           |
| USDC approval (one-time) |            No           |
| Deposit USDC to Safe     | Yes (standard transfer) |
| Withdraw USDC from Safe  |           Yes           |

## USDC Approval

Before your first trade, you need to approve USDC spending for the Polymarket exchange contracts. This is a one-time step and is also relayed gaslessly.

<Note>
  You only need USDC on Polygon to trade. No MATIC required for trading operations.
</Note>