Articles & Tutorials
for you to read...
- Building an x402 Client: Handling Payment Flows
Create a JavaScript client that automatically handles x402 payment flows - detecting 402s, making payments, and retrying requests.
- Your First x402 Server: Pay-Per-Request API
Build an Express API that requires Solana USDC payments. Return 402, verify payments, serve content.
- What is x402? The HTTP Status Code That Changes Everything
HTTP 402 'Payment Required' finally has a real implementation. Learn how x402 enables pay-per-request APIs and micropayments on the web.
- Error Handling and Transaction Confirmation
Handle Solana errors gracefully, implement proper confirmation patterns, and build resilient transaction flows.
- Interacting with Programs from Svelte
Build Svelte components that interact with Solana programs - token balances, transfers, and real-time updates.
- Understanding Solana Programs (Smart Contracts)
What Solana programs are, how they differ from Ethereum contracts, and the mental model for interacting with them.
- Signing Messages and Transactions in the Browser
Learn to sign messages for authentication and build transactions that users approve through their wallet.
- Building a Wallet Connect Component
Create a reusable Svelte wallet connection component with reactive state, auto-reconnect, and clean UX.
- Connecting Wallets in the Browser
Learn how browser wallet extensions like Phantom work and how to detect and connect to them from your web app.
- Working with SPL Tokens (USDC)
Learn to work with SPL tokens - the standard for fungible tokens on Solana. Check balances, create token accounts, and transfer USDC.