How to Add Token to Permanent Default Token List on MEW

In the previous article, you have learned how to add your token to the list of assets on Trezor. But we’re sure, you want to make your ERC20 token even more reliable for buyers and holders. Moreover, you want to make it at no cost. That’s not a problem – read the guide below. You’ll learn how to make your ERC-20 token a permanent default token on MEW (MyEtherWallet).

Also, learn how to add your token to the Ledger wallet for free.

What is a Permanent default list on MEW?

As you know, Myetherwallet (MEW) supports all ERC20 tokens. Some of these tokens MEW includes in its permanent default list, which means tokens’ balances show up automatically on the side of the interface.
But, there are many thousands of tokens that are not included. So, users have to add them as custom tokens manually. Custom tokens are only saved locally. Therefore if a user clears the cache, tokens disappear and need to be re-added.
However, if you add your token as a default asset via Github, then MEW puts it in the permanent default list.

Moreover, after adding your token to the permanent list, the MEW wallet app starts uploading a token logo from its database.

How to add a token to the Permanent default list on MEW?

Follow the six simple steps to add your ERC20 token to the Permanent default list on the MEW wallet. But before you start, check your token – might be it’s already in the default token list on MEW.

Step 1. Sign in Github

Log in to Github and go to that page.

Step 2. Create a new file

Click on the ‘Add file’ and then, on the ‘Create new file’ button as shown on the screen below.

create new file
Create a new file on Github

Step 3. Enter a file name

The name of your file must be in the format <YourTokenAddress>.json
For example, 0x3d371413dd5489f3a04c07c0c2ce369c20986ceb.json
You can get your token’s smart contract address from Etherscan.

file name on Github
Add a file name

Step 4. Enter the code

Write and enter the code into your file like in the example below.
Of course, after copy-pasting the code below you should edit it. Edit by entering the specifications of your token. Replace YOUC with your token symbol, enter your token smart contract address, decimals, etc.

"symbol": "YOUC",
"name": "yOUcash",
"type": "ERC20",
"address": "0x3d371413dd5489f3a04c07c0c2ce369c20986ceb",
"ens_address": "",
"decimals": 10,
"website": "",
"logo": {
"src": "",
"width": "32px",
"height": "32px",
"ipfs_hash": ""
"support": {
"email": "",
"url": ""
"social": {
"blog": "",
"chat": "",
"discord": "",
"facebook": "",
"forum": "",
"github": "",
"gitter": "",
"instagram": "",
"linkedin": "",
"reddit": "",
"slack": "",
"telegram": "",
"twitter": "",
"youtube": ""

Note that the easiest way to get a link to your token’s logo is to grab it from Etherscan. Go to your token page on Etherscan. Then, switch to “developer” mode (every browser allows it) and find a link to the logo.

link to token logo on Ethersan
Get a link to your token logo

Step 5. Propose new file

Once you have entered a code, click ‘Propose New File’ as shown below.

Permanent Default Token on MEW
propose MEW your file on Github

Step 6. Create a Pull Request

Review what you’ve just made, then press ‘Create Pull Request’ twice.

Click on ‘Create Pull Request’.

create pull request
The First click on the ‘Create pull request’ button

Then, click on ‘Create Pull Request’ again.

create pull request 2
The second click on the ‘Create pull request’ button

That’s it! Now, MEW will review and pull it in. Note that the MEW team may also ask you some questions if something is confusing or some information is missed.

How to check the approval status?

To check the status of your request, find it here. If you did everything correctly, then a line with your request will get a green mark.
Also, you will get an email notification from Github like on the screenshot below.

email notification from Github
Email notification from Github telling that your request was approved

At the same time, you will see a message of approval in your Pull Request thread.

Pull Request approval on Github
Approval message in the Pull Request thread

However, if you see a grey mark then it means that your request is under review.

Pull Request merging

After your Pull Request was approved, the MEW team will merge it as shown below.

MEW team merged your PR
Pull Request merged

So, your final goal is to see that MEW emerged your request like that one. As a result, your token will be updated with the MEW’s next release. It can take from 3 to 8 weeks. Check the results as explained here from time to time. If not added, contact us via telegram, and we’ll try to help.

What is MyEtherWallet (MEW)?

MyEtherWallet (MEW) is more than just a cryptocurrency wallet. It’s an open-source, client-side interface that allows users to interact directly with the Ethereum blockchain. Users don’t have to join any centralized exchange.

MEW users can perform the following actions:

  • Create a personal Ethereum wallet with many addresses.
  • Receive and send not only ETH but also any other Ethereum based tokens.
  • Use different versions of the MEW wallet. These versions consist of web, mobile app, browser extension MEW CX, MetaMask Chrome extension, and partnering hardware wallets like Ledger and Trezor.
  • Swap most popular cryptocurrencies such as ERC20 tokens, ETH, ETC, BTC, etc.
  • Explore MyEtherWallet’s DApp store. It’s a place where users can open a vault with MakerDAO, or register and manage ENS domains.
  • Send funds in offline mode.
  • Deploy and interact with smart contracts.

What are the advantages of being on MEW as a permanent default token?

It’s hard to overestimate the benefits that a crypto project gets after its cryptocurrency appears on the MEW as a default permanent token.

First, your project’s token immediately stands out from thousands of no-name & no-logo cryptocurrencies. Second, any token-holder can see the tokens’ USD price, balance, and logo permanently and automatically on their MEW interface.

Therefore, your token becomes more attractive and reliable for its current and future holders.

How to check Permanent Default Tokens on MEW?

To easily check any token availability on the MEW’s permanent default token list, download the MEW wallet to your smartphone. Then, open the ‘Market’ section and enter a token name into the search field.

For example, on the screenshots below you can see that the YOUcash token is not yet added to the permanent default token list on MEW. On the other hand, the TOKPIE token is already there.

YOUcash on MEW
YOUcash is not yet on the MEW Permanent Default Token list
TOKPIE is already on the MEW Permanent Default Token list

Useful links

For any question or cooperation, you can contact Tokpie at

What is Wrapped Bitcoin (WBTC)?

Learn about wrapped Bitcoin (WBTC) and how it’s useful for you.

Wrapped Bitcoin is the most liquid ERC20 token pledge with Bitcoin. One WBTC is equal to one BTC. Wrapped Bitcoin (WBTC) is very useful for decentralized exchanges and dApps that operate on the Ethereum blockchain. Being completely transparent, WBTC is a 100% community-led digital asset.

This article explains how WBTC works and what advantages it brings to traders, Ethereum-powered tools, and other cryptocurrency service providers.

Advantages of WBTC

WBTC gives greater liquidity to the Ethereum ecosystem including decentralized exchanges (DEXs) and financial applications. A great example is Uniswap that supports WBTC/ETH market pair. That pair attracts around $1 billion liquidity.
Nowadays, centralized exchanges generate most of the trading volume with Bitcoin. However, WBTC changes that, re-allocating Bitcoin’s liquidity to Ethereum blockchain and ERC-20 tokens.

WBTC standardizes Bitcoin (BTC) to the ERC20 format. It allows to create smart contracts for Bitcoin and integrate BTC transfers.

Therefore, instead of maintaining various nodes for different transaction types, exchanges, wallets, and Dapps only need to support an Ethereum node.

Benefits for Traders, Institutions, and Dapps

Traders, Institutions, and decentralized applications (Dapps) are the main counterparties that win by using WBTC.

Exchanges, wallets, payment services

Handling multiple cryptocurrencies across different nodes and transaction formats is a hard task for exchanges, wallets, and payment services. But, WBTC provides the benefits of Ethereum and Bitcoin nodes, making it easy to handle the wrapped cryptocurrency with only the Ethereum node.

Decentralized applications (Dapps)

In addition, decentralized applications can now leverage Bitcoin payments in smart contracts for lending protocols, funds, prediction markets, and token sales.


Also, Wrapped BTC (WBTC) allows users to experience increased liquidity and participation. The Ethereum network is processing transactions faster and cheaper than the Bitcoin network. As a result, Bitcoin holders don’t have to wait anymore. Thanks to WBTC, moving Bitcoin between exchanges via the Ethereum blockchain is much cost-efficient.

You can buy and sell WBTC against many cryptocurrencies and stablecoins on the Tokpie exchange.

How does WBTC work?

To get WBTC, a user requests tokens from a merchant. After that, a merchant performs a swap. During a swap, a user provides the merchant with Bitcoin, while Merchant, in turn, transfers WBTC to the user.

How WBTC works
WBTC Mechanics

Minting is the process of creating new wrapped tokens (WBTC). A merchant initialized such minting. You can find proof of assets by clicking on these BTC wallets.

Burning is the process of redeeming BTC for WBTC tokens. Only a merchant can do this. The amount is deducted from the merchant’s WBTC balance (on-chain) and the supply of WBTC is then reduced.

How to buy WBTC?

You can purchase Wrapped Bitcoin (WBTC) for USDT or ETH in three simple steps:

  1. Fund your account with USDT, or ETH. Note that you can purchase USDT or ETH with a bank card in a few minutes.
  2. Open WBTC/USDT and place your trade order to buy. Use this instruction if you don’t know how to place a trade order. Also, your can exchange your ETH for WBTC here.
  3. Withdraw WBTC to your personal Ethereum wallet or hold.

Alternatively, you can buy Bitcoin with a bank card for fiat money.

How to sell WBTC?

To sell Wrapped Bitcoin (WBTC) for USDT or ETH, follow three steps:

  1. Deposit WBTC on your account.
  2. Open WBTC/USDT order book, and place your trade order to sell. Read the instruction if you don’t know how to place a trade order. Also, your can exchange your WBTC for ETH here.
  3. Withdraw USDT or ETH to your personal Ethereum wallet or hold them on your account.

How to deposit WBTC?

To deposit Wrapped Bitcoin (WBTC) on your Tokpie account at no cost, follow this guide.

Note: Tokpie doesn’t charge any fees for depositing.

How to withdraw WBTC?

To withdraw Wrapped Bitcoin (WBTC) from your Tokpie account, use this instruction. You must have an eth compatible wallet address to be able to withdraw WBTC. Also, check the withdrawal commission.


Please be aware that Tokpie charges a fee for the listing. Tokpie does not give any investment, legal, tax, financial advice, or warranty of token price performance or successful fundraising.

Useful links

For any question or cooperation, you can contact Tokpie at