EthereumICO Plugin

Ethereum WordPress ICO MetaMask Crowdsale plugin can be used to sell your Ethereum ERC20 or Binance Smart Chain BEP20 ICO tokens from your WordPress site. It is the only available WP plugin to sell your Ethereum ERC20 or Binance Smart Chain BEP20 ICO tokens directly from your WordPress site.

It is the best WP plugin available to sell your Ethereum ERC20 ICO tokens directly from your WordPress site.

Any EVM compatible blockchain like Binance Smart Chain (BSC) or Polygon (MATIC) can be used.

Live Demo

See the official site for a Live Demo: https://ethereumico.io/

The WordPress ICO MetaMask plugin can accept Ether only. You can accept fiat money like USD or EUR or cryptocurrencies like Bitcoin for your ICO tokens with the Cryptocurrency Product for WooCommerce plugin.

Shortcodes

Ethereum ICO Widget

To show the full Ethereum ICO widget at once, insert the [ethereum-ico] shortcode wherever you like.

The basic example:

[ethereum-ico] 

The full customized example:

[ethereum-ico buybuttontext="BUY ME!" minimum="0.1 step="0.1" maximum="100" placeholder="Enter Ether amount here" gaslimit="200000" tokenname="TSX" description="Buy this very useful token and help save the Earth!" coinList="ETH,BTC"] 

Attributes:

• buybuttontext Add the buybuttontext="BUY ME!" attribute to change the buy button text shown.
• minimum Add the minimum="0.1" attribute to limit the minimum amount of ETH/BNB/MATIC accepted to 0.1
• step Add the step="0.1" attribute to limit the amount change step of ETH/BNB/MATIC accepted to 0.1. It is recommended to be set to the same value as the minimum attribute for better user experience.
• maximum Add the maximum="100" attribute to limit the maximum amount of ETH/BNB/MATIC accepted to 100. It can be useful to workaround legal issues in some countries. The PRO version is required for this feature to work. Free 7 days Trial is available.
• placeholder Add the placeholder="Enter Ether amount here" attribute to change the helper string displayed in the Ether input field for your customer to know where to input Ether amount to buy your tokens.
• gaslimit Use gaslimit="200000" attribute to manually set the Gas Limit value used in the transaction composed. This value is also shown for user in the widget UI.
• tokenname Add the tokenname="TSX" attribute to set the token name shown. This value will overwrite the same setting entered on the plugin settings page.
• description Add the description="Buy this very useful token and help save the Earth!" attribute to set the value for the description section shown. This value will overwrite the same setting entered on the plugin settings page.
• coinList Add the coinList="ETH,BTC" attribute to specify a list of coins to display with values calculated from the amount entered. This value will overwrite the same setting entered on the plugin settings page.

Gas Limit Widget

You also can use the fine grained [ethereum-ico-limit] shortcode for easier customization. The styled Gas Limit string with a corresponding limit value will be shown as a result.

The basic example:

[ethereum-ico-limit] 

The full customized example:

[ethereum-ico-limit label="%s LIMIT!" gaslimit="200001"] 

Attributes:

• label Add the label="%s LIMIT!" attribute to change the Gas Limit text shown.
• gaslimit Use gaslimit="200000" attribute to manually set the Gas Limit value used in the transaction composed. This value is also shown for user in the widget UI.

Input Widget

You also can use the fine grained [ethereum-ico-input] shortcode for easier customization. The input amount field will be shown.

The basic example:

[ethereum-ico-input] 

The full customized example:

[ethereum-ico-input minimum="0.1 step="0.1" maximum="100" placeholder="Enter Ether amount here" gaslimit="200000"] 

Attributes:

• minimum Add the minimum="0.1" attribute to limit the minimum amount of ETH/BNB/MATIC accepted to 0.1
• step Add the step="0.1" attribute to limit the amount change step of ETH/BNB/MATIC accepted to 0.1. It is recommended to be set to the same value as the minimum attribute for better user experience.
• maximum Add the maximum="100" attribute to limit the maximum amount of ETH/BNB/MATIC accepted to 100. It can be useful to workaround legal issues in some countries. The PRO version is required for this feature to work. Free 7 days Trial is available.
• placeholder Add the placeholder="Enter Ether amount here" attribute to change the helper string displayed in the Ether input field for your customer to know where to input Ether amount to buy your tokens.

Input Currency Widget

You also can use the fine grained [ethereum-ico-input-currency] shortcode for easier customization. Only the input currency will be shown with this shortcode.

The basic example:

[ethereum-ico-input-currency] 

The full customized example:

[ethereum-ico-input-currency showIcons="true" baseCurrency="USD"] 

Attributes:

• showIcons Add the showIcons="true" attribute to turn on the coin icons display mode. This value will overwrite the same setting entered on the plugin settings page.
• baseCurrency Use baseCurrency="USD" attribute to switch the input mode from ETH/BNB/MATIC to fiat amount input in USD. This value will overwrite the same setting entered on the plugin settings page.

Buy Button Widget

You also can use the fine grained [ethereum-ico-buy-button] shortcode for easier customization. Only the Buy button will be shown with this shortcode.

The basic example:

[ethereum-ico-buy-button] 

The full customized example:

[ethereum-ico-buy-button buyButtonText="BUY ME!" tokenname="TSX"] 

Attributes:

• buybuttontext Add the buybuttontext="BUY ME!" attribute to change the buy button text shown.
• tokenname Add the tokenname="TSX" attribute to set the token name shown. This value will overwrite the same setting entered on the plugin settings page.

Coin List Widget

You also can use the fine grained [ethereum-ico-currency-list] shortcode for easier customization. Only the list of coins with values calculated from the amount entered will be shown with this shortcode.

The basic example:

[ethereum-ico-currency-list] 

The full customized example:

[ethereum-ico-currency-list showIcons="false" coinList="ETH,BTC"] 

Attributes:

• showIcons Add the showIcons="true" attribute to turn on the coin icons display mode. This value will overwrite the same setting entered on the plugin settings page.
• coinList Add the coinList="ETH,BTC" attribute to specify a list of coins to display with values calculated from the amount entered. This value will overwrite the same setting entered on the plugin settings page.

Progress Bar Widget

To show an ICO progress bar widget insert a simple [ethereum-ico-progress] shortcode wherever you like.

The basic example:

[ethereum-ico-progress] 

The full customized example:

[ethereum-ico-progress crowdsale="0x773F803b0393DFb7dc77e3f7a012B79CCd8A8aB9" softcap="100" hardcap="1000"] 

Attributes:

• crowdsale Add the crowdsale="0x773F803b0393DFb7dc77e3f7a012B79CCd8A8aB9" attribute to specify your crowdsale contract address. This value will overwrite the same setting entered on the plugin settings page.
• softcap Add the softcap="100" attribute to specify soft cap value for your ICO. This value will overwrite the same setting entered on the plugin settings page.
• hardcap Add the hardcap="1000" attribute to specify hard cap value for your ICO. This value will overwrite the same setting entered on the plugin settings page.

Features:

• This feature uses the blockcypher.comAPI
• You can use any of the persistent cache WP plugins to overcome its rate limits. The PRO version is required for this feature to work. Free 7 days Trial is available.

Progress Value Widget

To show an ICO progress value widget insert a simple [ethereum-ico-progress-value] shortcode wherever you like.

The basic example:

[ethereum-ico-progress-value] 

The full customized example:

[ethereum-ico-progress-value crowdsale="0x773F803b0393DFb7dc77e3f7a012B79CCd8A8aB9"] 

Attributes:

• crowdsale Add the crowdsale="0x773F803b0393DFb7dc77e3f7a012B79CCd8A8aB9" attribute to specify your crowdsale contract address. This value will overwrite the same setting entered on the plugin settings page.

Features:

• This feature uses the blockcypher.comAPI
• You can use any of the persistent cache WP plugins to overcome its rate limits. The PRO version is required for this feature to work. Free 7 days Trial is available.

Progress Percent Widget

To show an ICO progress percent widget insert a simple [ethereum-ico-progress-percent] shortcode wherever you like.

The basic example:

[ethereum-ico-progress-percent] 

The full customized example:

[ethereum-ico-progress-percent crowdsale="0x773F803b0393DFb7dc77e3f7a012B79CCd8A8aB9" hardcap="1000"] 

Attributes:

• crowdsale Add the crowdsale="0x773F803b0393DFb7dc77e3f7a012B79CCd8A8aB9" attribute to specify your crowdsale contract address. This value will overwrite the same setting entered on the plugin settings page.
• hardcap Add the hardcap="1000" attribute to specify hard cap value for your ICO. This value will overwrite the same setting entered on the plugin settings page.

Features:

• This feature uses the blockcypher.comAPI
• You can use any of the persistent cache WP plugins to overcome its rate limits. The PRO version is required for this feature to work. Free 7 days Trial is available.

Token Balance Widget

To show the user’s already purchased token balance, insert the [ethereum-ico-balance] shortcode wherever you like.

The basic example:

[ethereum-ico-balance] 

The full customized example:

[ethereum-ico-balance tokenname="TSX" label="Token balance" placeholder="Input your BSC account address"] 

Attributes:

• tokenname Add the tokenname="TSX" attribute to set the token name shown. This value will overwrite the same setting entered on the plugin settings page.
• label Add the label="Token balance" attribute to change the Balance label text shown.
• placeholder Add the placeholder="Input your BSC account address" attribute to change the helper string displayed in the Ethereum address input field for your customer to know where to input their Ethereum address. It can be helpful if no MetaMask or other web3 browser is installed.

Purchases Widget

To display a table of recent token purchases by anyone, or by the current user, insert the [ethereum-ico-purchases] shortcode wherever you like.

In the last case if MetaMask is not installed or account is not unlocked, an input field is provided for user account address.

The basic example:

[ethereum-ico-purchases] 

The full customized example:

[ethereum-ico-purchases tokenname="TSX" label="Token purchases" placeholder="Input your BSC account address"] 

Attributes:

• tokenname Add the tokenname="TSX" attribute to set the token name shown. This value will overwrite the same setting entered on the plugin settings page.
• label Add the label="Token purchases" attribute to change the Balance label text shown.
• placeholder Add the placeholder="Input your BSC account address" attribute to change the helper string displayed in the Ethereum address input field for your customer to know where to input their Ethereum address. It can be helpful if no MetaMask or other web3 browser is installed.

Affiliates Widget

To display a referral address field, insert the [ethereum-ico-referral] shortcode wherever you like. User can copy it and send to friends. If they buy tokens while opened this referral link, your Crowdsale contract would get a referral address in the Data field. Your Crowdsale contract should be able to work with it.

If the MetaMask is not installed or account is not unlocked, an input field is provided for user account address.

The basic example:

[ethereum-ico-referral] 

The full customized example:

[ethereum-ico-referral url="https://example.com/crowdsale-ico-page" label="Referal link" placeholder="Input your BSC account address"] 

Attributes:

• url Add the url="https://example.com/crowdsale-ico-page" attribute to specify a particular page to refer to. The current page URL is used if this attribute not specified.
• label Add the label="Referal link" attribute to change the Referal link label text shown.
• placeholder Add the placeholder="Input your BSC account address" attribute to change the helper string displayed in the Ethereum address input field for your customer to know where to input their Ethereum address. It can be helpful if no MetaMask or other web3 browser is installed.

Features:

• The shortcode’s default argument name produced in a link is icoreferral, like in this example – https://ethereumico.io?icoreferral=0x476Bb28Bc6D0e9De04dB5E19912C392F9a76535d, but it can be renamed with the Referral argument name setting. The PRO version is required for this feature to work. Free 7 days Trial is available.

Note: The Transaction data to send to your crowdsale contract setting will be replaced by the referral address if specified in an URL.

You can use this solidity code snippets as a base for your referral/affiliate system implementation.

Put this code to your payable token buy function:

if(msg.data.length == 20) { address referer = bytesToAddress(bytes(msg.data)); // self-referrer check require(referer != address(0x0), "zero-referrer"); require(referer != msg.sender, "self-referrer"); // 2% affiliation reward uint refererTokens = tokens.mul(2).div(100); // bonus for referrer token.transfer(referer, refererTokens); } 

The bytesToAddress function:

function bytesToAddress(bytes source) internal pure returns(address) { uint result; uint mul = 1; for(uint i; i < 20; i++) { result = result.add(mul.mul(uint8(source[19-i]))); mul = mul.mul(256); } return address(result); } 

You can use the Crowdsale Contract and ERC20 Token Development Service to let us do this job for you.

Airdrop

Airdrop is a free tokens distribution to promote your project.

This plugin can be used to implement a user initiated airdrop. It means that user can request some amount of your tokens for free. Good for you, the user will be responsible for the airdrop transaction gas fees.

To configure this plugin for airdrop, just set the minimum allowed setting to zero and the Crowdsale address to your airdrop contract. Note that your airdrop contract should be able to accept zero payments and send some tokens in return.

The Transaction data setting can be used to call some specific function of your Airdrop contract.

The Online ABI Encoding Service and Ethereum Signature Database can be useful when calculating the right value for the Transaction data setting.

For example, the simple buy() function will have this signature: 0xa6f2ae3a.

Bounty

Time based bounty schedule can be used.

The ICO start date and Bounty settings are used to configure this functionality.

The JSON array of your bounty values can be specified in the Bounty setting.

Example:

[[7, 40], [7, 30], [7, 20], [7, 10], [7, 5]] 

The 7 number is for days count for the corresponding bounty period. Bounty periods are calculated from the ICO start date setting.

The 40, 30, 20, 10, 5 are percents of additional tokens to be sent to buyer for free.

Your Crowdsale contract should be able to work with it. You can use the Crowdsale Contract and ERC20 Token Development Service to let us do this job for you.

Transaction data

The Transaction data setting to send to your crowdsale contract is supported

The PRO version is required for this feature. Free 7 days Trial is available.

It is an advanced feature. It can be required if your Crowdsale contract can not just accept Ether by send, but need some payable method to be called. Do not use if unsure.

The Online ABI Encoding Service and Ethereum Signature Database can be useful when calculating the right value for the Transaction data setting.

For example, the simple buy() function will have this signature: 0xa6f2ae3a.

Cache

You can use any of the persistent cache WP plugins to overcome the etherscan.io and openexchangerates.org API rate limits. We use the cache to limit the API calling rate to a reasonable value

The PRO version is required for this feature. Free 7 days Trial is available.

Test if caching is enabled. It is important to overcome API rate limits in production.

Refresh your site page twice and check the HTML source produced for LOG: records.

For non-PRO plugin version and for PRO version with Cache plugin not configured properly they would looks like this:

LOG: etherscan.io rate_data API is called LOG: etherscan.io rate_data API call result is stored LOG: openexchangerates.org API is called LOG: openexchangerates.org API call result is saved LOG: etherscan.io total_received API is called LOG: etherscan.io total_received API call result is stored 

Note: make sure to enable the Object Cache in the W3 Total Cache if you use it.

For PRO plugin version with Cache properly configured you should see no LOG: records most of the time.

See the ICO Launch: WordPress Cache Plugin guide to configure the caching plugin.

ICO Fiat Money

The Ethereum ICO WordPress Plugin can be configured to display fiat currency like USD instead of the default ETH, BNB or MATIC. In this mode user still pay with Ether using MetaMask, but all sums are displayed in the currency chosen for user convenience.

The PRO version is required for this feature. Free 7 days Trial is available.

Note that this is useful only if you have implemented something like the oraclize.it interface in your Crowdsale smart contract. Also, make sure to configure the openexchangerates.org App Id setting if non-USD fiat currency is used here.

You can use the Crowdsale Contract and ERC20 Token Development Service to let us do this job for you.

First of all, look for the Base currency and Base symbol settings. By default they are configured for Ether, but you always can configure it for any other currency, including fiat currencies, e.g. USD.

Make sure to adjust values of these fields, since they are currency dependent:

• Increase/Decrease step,
• Min allowed value,
• Max allowed value,
• The ICO token rate,
• ICO soft cap,
• ICO hard cap,
• Private sale seed.

It also makes sense to replace USD with ETH in the List of coins setting.

As a result:

• The token sell widget accepts sum in USD and displays the currency used,
• The Progressbar widget displays the current sum, soft and hard caps with the used currency symbol,
• The Amount field in the Purchases table widget is shown in USD with a used currency symbol too

See the ICO Fiat Money for a detailed configuration guide please.

FREE Features

• This plugin uses Metamask or any other web3 browser to safely perform the ERC20 token sell operation
• It will show user a link to the Metamask site if the user doesn’t have the Metamask installed
• We use a well known https://etherscan.io API to provide your client an automatic rate calculations to USD and BTC
• Select a list of any currencies supported by the openexchangerates.org to convert the price to.
• You can provide a comma separated list of coins to convert ETH amount inputted by user. This list is shown under the ETH input field.
• Minimum ether amount can be specified to workaround some legal issues.
• Test networks like goerli and sepolia are supported. User is warned if he tries to buy tokens from one network, while having MetaMask to point to another network, effectively preventing any losses here.
• The Infura.io service can be used with the Infura.io API Key setting
• This plugin is l10n ready

PRO Features

The PRO version is required for these features to work. Free 7 days Trial is available.

• Coins and token icons display can be switched on
• Maximum ether amount can be specified to workaround some legal issues
• Private sale seed setting to count funds obtained in a non-Crowdsale contract way
• Custom/private blockchain feature: Ethereum Node JSON-RPC Endpoint and other related settings to use the Binance Smart Chain (BSC), Polygon (MATIC) or any other EVM compatible blockchain

See the Free vs PRO version differences if need more info on this topic.

Disclaimer

By using this plugin you accept all responsibility for handling the account balances for all your users.

Under no circumstances is ethereumico.io or any of its affiliates responsible for any damages incurred by the use of this plugin.

Every effort has been made to harden the security of this plugin, but its safe operation depends on your site being secure overall. You, the site administrator, must take all necessary precautions to secure your WordPress installation before you connect it to any live wallets.

You are strongly advised to take the following actions (at a minimum):

• Educate yourself about cold and hot cryptocurrency storage
• Obtain hardware wallet to store your coins
• Educate yourself about hardening WordPress security
• Install a security plugin such as Jetpack or any other security plugin
• Enable SSL on your site if you have not already done so.

By continuing to use the Ethereum ICO WordPress plugin, you indicate that you have understood and agreed to this disclaimer.

l10n

This plugin is localization ready.

Languages this plugin is available now:

• English
• Russian(Русский)

Feel free to translate this plugin to your language.

Enter your settings in admin pages and place the [ethereum-ico] and other shortcodes wherever you need it.

Read this step by step guide for more information: Install and Configure

Detailed configuration settings description can be found in this guide: Configuration Settings.

Binance Smart Chain (BSC), Polygon (MATIC) and any other EVM-compatible blockchain is supported in the PRO version!

Main shortcodes example

[ethereum-ico-referral url="https://example.com/crowdsale-ico-page" label="Referal link" placeholder="Input your BSC account address"] [ethereum-ico-balance tokenname="TSX" label="Referal link" placeholder="Input your BSC account address"] [ethereum-ico] [ethereum-ico-progress] [ethereum-ico-purchases tokenname="TSX" label="Referal link" placeholder="Input your BSC account address"] 

Fine grained shortcodes example

[ethereum-ico-limit label="%s LIMIT!" gaslimit="200001"] [ethereum-ico-input placeholder="Test placeholder"] [ethereum-ico-input-currency showIcons="true" baseCurrency="USD"] [ethereum-ico-buy-button buyButtonText="BUY ME!"] [ethereum-ico-currency-list showIcons="false" coinList="ETH,BTC"] [ethereum-ico-progress-value] [ethereum-ico-progress-percent] 

1. 

   This is how the plugin looks like if the Show icons feature is enabled.

2. 

   The [ethereum-ico-progress] display

3. 

   The [ethereum-ico-balance] display

4. 

   The [ethereum-ico-purchases] display

5. 

   The token symbol and GAS settings

6. 

   The base currency settings

7. 

   Token sale widget settings

8. 

   Advanced settings

9. 

   API keys

10. 

    Displayed currencies list and Show icons flag

11. 

    The ICO Token and Crowdsale contract addresses

12. 

    The ICO Crowdsale contract properties

13. 

    The [ethereum-ico-progress] shortcode settings

14. 

    The [ethereum-ico-referral] display

2.4.4

• freemius library version update

2.4.3

• Fix USD price for bscscan.com API

2.4.2

• Blockchain explorer API Key settings fix

2.4.1

• ethprice_api_url setting fix

2.4.0

• Blockchain settings configuration is simplified for both, infura.io supported and custom networks
• Remove unsupported test networks

2.3.16

• Fix the balance account field display if the referral shortcode is not used

2.3.15

• Fix non-USD setting on the admin page

2.3.14

• Support less than 1 token rates

2.3.13

• sepolia, polygon and mumbai networks support is added

2.3.12

• Fix balance Account field display if no MetaMask is connected

2.3.11

• Better EIP-1559 compliance
• New freemius.com library version

2.3.10

• Support token names with characters like : in the symbol

2.3.9

• MATIC icon is added in the PRO version
• BNB icon not shown issue fix

2.3.8

• BNB icon is added in the PRO version

2.3.7

• Disabled Advanced blockchain settings in Trial mode fix

2.3.6

• The name of the argument used in referral links can be renamed now

2.3.5

• Error display fix

2.3.4

• False network mismatch error fix

2.3.3

• url attribute is added to the [ethereum-ico-referral] shortcode.

2.3.2

• tokenname, label and placeholder attributes are added to better support non-Ethereum networks.

2.3.1

• Empty data field fix

2.3.0

• EIP-1559 support