# How to obtain DAI on Polygon

### **1. Bridge your DAI from Ethereum to Polygon** 🌉 

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If you already have DAI on the Ethereum mainnet, you can to move this over to Polygon.\
You can use the official [Matic Wallet bridge](https://wallet.polygon.technology/bridge), the [Zapper.fi bridge](https://zapper.fi/bridge) or the [Aavegotchi bridge](https://aavegotchi.com/bridge). Here is a [**great written guide**](https://quickswap-layer2.medium.com/how-to-set-up-polygon-matic-mainnet-for-metamask-transfer-assets-from-l1-to-l2-to-use-9a7975eb8769) for the official bridge, as well as a [**YouTube tutorial**](https://youtu.be/jQCXmiwtIQU?t=373).\
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\&#xNAN;*Note: this will require a transaction on Ethereum mainnet. Depending on the transaction cost (gas fees) of  Ethereum, this only makes sense if you want to transfer relatively large amounts of your existing DAI.* <br>

### **2. Bridge your DAI from other blockchains to Polygon** 🌉&#x20;

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If you already have:

* DAI on **Binance Smart Chain (BSC)**
* xDAI on the **xDAI** chain
* DAI on **Fantom**
* DAI on **Avalanche**
* DAI on **Arbitrum**
* DAI on **Optimism**

You can use the [xpollinate.io bridge ](https://www.xpollinate.io/)or [Anyswap router](https://anyswap.exchange/#/router) or [Hop Exchange](https://app.hop.exchange/send?token=DAI\&destNetwork=polygon) to transfer DAI to Polygon. *See this* [*external guide*](https://www.xdaichain.com/for-users/bridges/xdai-matic-connext-bridge)*.  Transaction costs will be very low. Note that xpollinate does not support Avalanche (yet).*

### **3. Buy DAI directly on Polygon (via a third-party)** 👛

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There are multiple service providers that offer the possibility to directly buy DAI on Polygon. \
e.g. <https://ramp.network/buy/> or <https://global.transak.com/>\
\&#xNAN;*Make sure to select "DAI on Polygon chain" or "DAI on Polygon network" so you end up with the correct DAI. Most often you can pay by either a Bank Transfer (e.g. SEPA deposit) or a debit or credit card. Transaction fees should be somewhat cheaper compared to transferring DAI from Ethereum.*<br>

> &#x20;:warning: *These are external services - not related to the LeagueDAO! You will most likely be required to verify your identity and pay a fee for using their service. We'd like to make clear that this is NOT an endorsement or recommendation of any type.* :warning:

### **4. Swap on a decentralized exchange on Polygon** 🔄

If you already hold other assets on Polygon (e.g. ETH or MATIC or USDC or another token), you can use the [Quickswap Exchange](https://quickswap.exchange/#/swap?outputCurrency=0x8f3Cf7ad23Cd3CaDbD9735AFf958023239c6A063) or [Paraswap](https://paraswap.io/#/?network=polygon) to easily swap them for DAI.\
\&#xNAN;*You will need a very small amount of MATIC to pay for the (negligible) transaction costs.*