ERC library for blockchain development

Usage no npm install needed!

<script type="module">
  import idecentralizeErclib from 'https://cdn.skypack.dev/@idecentralize/erclib';



Version npm Node.js CI Language grade: JavaScript Total alerts

ERC library for blockchain Development

added colors for network and asset's

In development. More networks, asset's and features are coming...

Install and import

npm install @idecentralize/erclib

import ERC20 from "@idecentralize/erclib"

address should be checksumed


set the chain ID

const chainId = 137 // Polygon

for non ethereum metamask (not included ny default in metamask)

you can get the RPC, explorer to add the rpc to metamask or connect to the selected network

NETWORK[chainId].rpc // output the rpc URI

get the asset into on the specific network.

const usdc = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"

ERC20[chainId][usdc].decimals // output decimals of asset

ERC20[chainId][usdc].compound // output cToken address

ERC20[chainId][usdc].colors // HTML color


import IPFS_SVG_PATH from "@idecentralize/erclib"

<image src={IPFS_SVG_PATH + ERC20[network_id][usdc].symbol + '.svg'} alt={ERC20[network_id][usdc].symbol} />


network_id should be the chain id return by the provider. When forking the mainnet using hardhat, the network id is 31337 and we want to use the mainnet asset under network id 1.

ERC20[network_id === 31337 ? 1 : network_id][usdc].decimals // output decimals of asset

This will use the mainnet id on the library when forking.

Supported Network

  • IPFS
  • Ethereum
  • Polygon
  • BSC
  • Aurora
  • Avanlance
  • xDai

Supported Testnet & protocols

  • Compound
  • Aave
  • Yearn v2

Please report any issues!

To have add some assets please submit a PR and provide the SVG logo.