Sergen Uysal
All authorsSergen is a Senior Technical Writer at Quicknode, where he covers blockchain developer tools, APIs, and data infrastructure across multiple networks, helping developers go from zero to production with hands-on guides and sample apps.
Recent guides
Discover, fund, trade, and stream Hyperliquid HIP-4 binary outcome markets using Quicknode's zero-custody REST builder API for Hyperliquid.
Build a terminal-based Sui portfolio tracker that fetches balances and transactions with GraphQL and streams live checkpoints via gRPC using Quicknode.
Build a TypeScript script that queries native token balances across 15 EVM chains using a single MPP session. Learn session lifecycle, voucher-based payments, and cost optimization.
Build a bot that queries Hyperliquid data via the SQL Explorer REST API and delivers a formatted market digest to Telegram on a daily schedule.
Build a dynamic wallet watchlist using Quicknode Webhooks and Key-Value Store. Add or remove addresses on the fly without restarting your webhook.
Learn how to access Quicknode's blockchain infrastructure using x402 payments. No account, API keys, or subscription required. Useful for AI agents, bots, and developers who want on-demand access with wallet-based authentication.
Build a proactive alerting system that monitors Quicknode RPC credit usage and sends notifications to Slack, PagerDuty, Discord, or Prometheus before you hit your limits.
Learn how to organize endpoints at scale using RBAC, tags, and team-based visibility for enterprise Quicknode accounts.
Recent sample apps
AI Powered DeFi Yield Optimizer
This app teaches you how to integrate the Aerodrome Swap API with an AI model to create a personalized DeFi yield optimizer and analytics dashboard for Aerodrome.
EVM MCP Server
EVM MCP Server connects AI assistants like Claude or Cursor to blockchain data across Ethereum and other EVM-compatible chains. This MCP server tool lets Claude check wallet balances, analyze contracts, and monitor gas prices through natural conversation, making crypto data accessible to AI agents.
Flashblocks Base App
A dapp demonstrating Base Flashblocks capabilities with a side-by-side comparison of transaction confirmations: Flashblocks vs Traditional blocks.
HyperCore Order Monitor
Track trading orders on Hyperliquid Core (L1) in real-time with Quicknode Streams and KV Store for dynamic filtering.
RWA Tokenizer
Tokenize Real World Assets (RWAs) as ERC-721 NFTs with IPFS metadata and cross-chain bridging via LayerZero V2 between Base Sepolia and Ethereum Sepolia.
SQL Explorer Cookbook
Query Hyperliquid on-chain data with standard SQL using Quicknode SQL Explorer.