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web3xDev/README.md

Hi, I'm Muhammed Alparslan 👋

Frontend-focused web3 full-stack dev. I build polished onchain products, fast.

Over two years shipping production web3 UIs as a remote frontend engineer at a US DeFi platform built on Uniswap v3. Now I'm all-in on x402 and agentic payments: the rail for machines that pay per request.

🔭 Flash402 · flash402.xyz  Live

An onchain USDC paywall for any API. Flash402 sits in front of any endpoint over HTTP 402: no accounts, no API keys, no code changes. Humans or AI agents pay per call, and it settles onchain.

📖 Case study: flash402-showcase

🧪 Paywright · paywright.xyz  Live

The Postman for x402. Send a request to any x402 endpoint, decode the 402 challenge, pay in USDC from your wallet, and inspect the fully settled response with receipt and onchain trace. The client I wished for while shipping metered APIs.

📖 Case study: paywright-showcase

🛠️ Stack

TypeScript · React · Next.js · Tailwind · wagmi · viem · Postgres

What I reach for most. I pick up whatever a project needs.

📦 Past builds

  • StarkMint — deploy ERC-20 tokens and ERC-721 collections on Starknet, no Cairo required.
  • MintZilla — launch ERC-20 tokens across EVM chains, no Solidity, no code.

🤝 Reach me

LinkedIn · Portfolio

Pinned Loading

  1. flash402-showcase flash402-showcase Public

    Turn any API into a pay-per-call endpoint — an onchain USDC paywall over HTTP 402, built on the x402 protocol. Live product case study.

  2. paywright-showcase paywright-showcase Public

    The Postman for x402: test, pay, and inspect any x402 endpoint end to end. Live product case study.

  3. StarkMint-tool StarkMint-tool Public

    An Intuitive No Code Platform for Creating ERC20 Tokens and ERC721 NFTs on Starknet

  4. MintZilla-tool MintZilla-tool Public

    No-Code ERC20 Token Generator for Ethereum and EVM chains.

    Solidity

  5. PancakeSwap-Pair-Monitor PancakeSwap-Pair-Monitor Public

    Real-time liquidity pair tracking tool for PancakeSwap on Binance Smart Chain, utilizing WebSocket for live updates and event monitoring.

    JavaScript

  6. SolidityAnalyzer SolidityAnalyzer Public

    Analyzing Solidity smart contracts with Slither through a React interface

    TypeScript 1