This repository serves as a professional showcase for my expertise in the x402 protocol, Coinbase's innovative HTTP-based standard for seamless, web-native cryptocurrency payments. As an active contributor to the x402 ecosystem, I specialize in integrations across leading blockchains, including Solana, Ethereum Virtual Machine (EVM) chains, and Binance Smart Chain.
For developers, projects, or teams seeking x402 developer services, Coinbase x402 implementation, Solana x402 solutions, EVM x402 smart contracts, or Binance x402 wallet integrations, this profile provides a comprehensive overview of my capabilities. Optimized for discoverability, searching "x402 developer GitHub," "Solana x402 expert," or "Coinbase x402 README" will direct users here efficiently.
As a blockchain developer with a focus on payment protocols, I am dedicated to advancing the adoption of x402—the revival of HTTP 402 "Payment Required" for efficient, chain-agnostic micropayments using USDC and ERC-20 tokens. My work bridges traditional web development with Web3, enabling applications such as AI-driven commerce, DeFi platforms, and automated trading systems.
- Core Focus: Implementing x402 facilitators, endpoints, and cross-chain payment flows for Coinbase, Solana, EVM, and Binance ecosystems.
- Value Proposition: Deliver scalable, low-latency solutions that reduce integration complexity and transaction costs, supporting high-throughput environments like meme coin launches and enterprise dApps.
- Philosophy: x402 represents the future of internet payments—open-source, HTTP-native, and interoperable across Solana's speed, EVM's maturity, and Binance's liquidity.
I possess hands-on experience in designing, deploying, and optimizing x402-based systems. Below is a structured overview of my proficiencies:
| Technology Stack | Key Skills | Notable Applications |
|---|---|---|
| Coinbase x402 | Protocol SDK usage, HTTP 402 endpoint configuration, USDC payment orchestration | Developed secure payment gateways for AI agents and e-commerce platforms |
| Solana x402 | SPL token handling, high-throughput facilitator deployment, Rust-based programs | Engineered payment processors for real-time meme coin transactions and NFT marketplaces |
| EVM x402 | Solidity smart contract development, ERC-20 compatibility, gas-optimized bridging | Built DeFi lending protocols with instant x402 settlements on Ethereum and Layer 2s |
| Binance x402 | BEP-20 token integrations, exchange API automation, wallet connectivity | Created trading bots for token discovery and automated buys on Binance Smart Chain |
- Development Tools: Rust (for Solana programs via Anchor), Solidity (with Hardhat for testing), Node.js (for HTTP servers), and Web3.js/Ethers.js for client-side interactions.
- Contributions: Regular commits to the official Coinbase x402 repository; active in x402 protocol discussions on developer forums and X (formerly Twitter).
- Performance Metrics: Achieved sub-1-second transaction confirmations on Solana; reduced EVM gas costs by up to 40% through optimized contract logic.
Browse my open-source repositories demonstrating practical x402 implementations. Each includes detailed documentation, code samples, and deployment guides to facilitate quick adoption.
- x402-Payment-Gateway: A robust, full-stack server supporting Coinbase and Solana x402 flows. Ideal for AI agent monetization. (Keywords: x402 gateway, Solana payments, Coinbase integration)
- EVM-x402-Bridge: Seamless cross-chain bridge for EVM-to-Solana x402 transactions, with ERC-20 to SPL token conversion.
- Binance-x402-Trader: Automated bot leveraging Binance x402 for efficient token trading and liquidity management.
- AI-Agent-x402-Demo: Proof-of-concept for autonomous AI agents executing x402 payments in Web3 environments.
All projects are licensed under MIT for easy forking and contribution. Star or fork to stay updated on enhancements.
I am available for consultations, code reviews, custom x402 integrations, or full-scale project development. Whether troubleshooting Solana x402 latency, auditing EVM contracts, or architecting Binance payment modules, I provide tailored support to accelerate your initiatives.
- Email: [email protected] (Preferred subject: "x402 Development Inquiry")
- Telegram: @g0drlc – Open to direct messages on x402 topics, blockchain payments, or ecosystem trends.
- Availability: Freelance opportunities welcome; respond via GitHub issues or email for scoping and rates.
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© 2025 | Committed to advancing the x402 protocol | Last Updated: October 28, 2025