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Vitor Py · Oct 12, 2025

solhtmx: Simpler Solana Interactions with HTML Attributes

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Introduction solhtmx is a Solana-native extension to htmx that simplifies blockchain interactions using HTML attributes. It lets you: Connect wallets Sign transactions Interact with Solana All using declarative HTML, without complex JavaScript. Problem Building blockchain apps typically involves: Complex wallet SDKs Managing connection state Handling transaction signing Coordinating UI updates…

Introduction

solhtmx is a Solana-native extension to htmx that simplifies blockchain interactions using HTML attributes. It lets you:

  • Connect wallets
  • Sign transactions
  • Interact with Solana

All using declarative HTML, without complex JavaScript.

Problem

Building blockchain apps typically involves:

  1. Complex wallet SDKs
  2. Managing connection state
  3. Handling transaction signing
  4. Coordinating UI updates

This means lots of JavaScript and careful orchestration of async operations.

Solution

solhtmx extends htmx with Solana-specific attributes:

  • sol-connect - Connect wallet
  • sol-sign - Sign transactions
  • sol-wallet-address - Show wallet address
  • sol-trigger - React to blockchain events

Connecting a Wallet

<button sol-connect="true"
 hx-get="/api/wallet-status"
 hx-target="#wallet-info">
 Connect Wallet
</button>

Clicking the button:

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