Thabo David Klass

Online payments have been one of the major applications of the web since the rise of usage of the internet by the general public in the early 1990s – earlier implementations were naturally a lot cruder. Later on, superior payment systems like PayPal and Stripe came along and offered developers ways to facilitate payments.
Another huge wave followed after that – cryptocurrency. Many people had been trying to create popular digital currencies for years – most notably was Nick Szabo with his early efforts in the 1990s. In 2009, blockchain-based currencies were create and later Ethereum, which comes out of the box with smart contracts, was created. Not only is the Ethereum platform advanced, it is also versatile in that it comes with Web3 that can be injected into a web application’s instance to facilitate Ethereum transactions.
Javascript has become a mature language that is capable of doing things that had long been ascribed to compiled programming languages – this maturity has given leeway to create better products.
WordPress is now running on 30% of all websites – in a way, it has become a kind of web operating system. This means that it has become unavoidable and thinking about creating new products and dedicated implementations of existing products for WordPress is imperative.
The combination of better payments technology, cryptocurrencies, mature Javascript and a web dominated by a very powerful WordPress was fertile soil to create Spreebie Bartner – a completely new paradigm in online payment.
This plugin requires Metamask to work.
THIRD PARTY SERVICE NOTE: When making donations to the author of this plugin, a third party service called Firebase (https://firebase.google.com/) is used to store donator names and emails. A donator can choose to donate anonymously so that their name and email are not stored. This third party service on this plugin ONLY works with donations to the author – the rest of the plugin functions without it.
Another third party service used is CoinMarketCap (https://api.coinmarketcap.com) – this is used to get Ethereum price information for different currencies. There is no storage that happens with this service.

Spreebie Barter – Ethereum Payments and Donations

The SPREEBIE BARTER plugin is a widget that enables easy and fast Ethereum payments on any WordPress website via Metamask.

Francesco Ventura

Sign and secure your digital will using Web3 wallets. EIP-712 signature, no server storage, 100% client-side privacy.
Heavenkey is the first WordPress plugin that allows users to write and off-chain sign a digital will — directly from your website, no coding required.
<h3>How it works</h3>
<ol>
<li>Add the <code>[heavenkey_form]</code> shortcode to any page or post. </li>
<li>Visitors connect their Web3 wallet (MetaMask, Ledger, WalletConnect, etc.). </li>
<li>They enter their name, a beneficiary wallet address, and a personal message. </li>
<li>Clicking Sign with Wallet signs the data using EIP-712 (gas-less) directly in the browser. </li>
<li>The result is a tamper-proof signed JSON including wallet address, timestamp, message, and signature.</li>
</ol>
Key features: 
* 100% client-side – no server storage. 
* Privacy by design – all data stays in the browser. 
* Secure by default – EIP-712 signature for proof of authorship. 
* Translation-ready – <code>.pot</code> template included. 
* Theme-compatible – works with any theme or builder. 
* Blockchain-neutral – supports Ethereum, Polygon, Arbitrum, BNB, Base, and other EVM chains.
<blockquote>
Disclaimer: Heavenkey is not a legal replacement for an official notarial will. It provides cryptographic proof of intent. Consult local regulations for legal validity.
</blockquote>
<h3>Who Can Use Heavenkey?</h3>
<ul>
<li>👨‍👩‍👧‍👦 Private individuals & families – create a personal digital will or message for loved ones. </li>
<li>🧑‍⚖️ Lawyers & legal-tech consultants – offer a digital pre-declaration tool to clients. </li>
<li>🎨 Artists & creators – sign a statement regarding future use of their work or profiles. </li>
<li>🏛️ DAO members & multisig signers – publish exit intents or succession signals. </li>
<li>🪙 Crypto holders & DeFi users – leave instructions about wallets or fund distribution. </li>
<li>💼 Start-ups & fintech founders – time-proof signed intents (e.g. on IPFS).</li>
</ul>
<h3>Security & Privacy</h3>
All signing occurs entirely in the user’s browser. No private key, seed phrase, or sensitive data is stored or transmitted.
<h3>Signature Verification</h3>
Signed JSON files can be verified using: 
– ✅ The official browser-based tool: https://www.francescoventura.it/heavenkey/ 
– 📦 GitHub source and verification: https://github.com/fra301076/heavenkey-digital-will-web3/releases/tag/v1.0.3
Heavenkey uses EIP-712 for verifiable, tamper-proof signatures. 
All verification happens client-side with no backend or storage involved.
<h3>Source Code Notice</h3>
This plugin uses the <a href="https://github.com/ethers-io/ethers.js" rel="nofollow ugc">Ethers.js</a> library, which is open-source under the MIT license. 
You can view the full uncompressed source code here: 
https://github.com/ethers-io/ethers.js
The full source code for this plugin is also available here: 
https://github.com/fra301076/heavenkey-digital-will-web3

Heavenkey – Digital Will Web3

Sign and secure your digital will using Web3 wallets. EIP-712 signature, no server storage, 100% client-side privacy.

Spreebie Barter – Ethereum Payments and Donations vs Heavenkey – Digital Will Web3