Base · Arc / Circle · Payment infrastructure · Smart contracts · Open source
I build and test usable onchain products—from contract design and public testnet deployment to verified transactions and production-facing applications.
arc-paylink — Verifiable USDC settlement on Arc
Turns an invoice, milestone, or agent task into a shareable USDC payment with a verifiable source-to-destination audit trail.
- Arc and Base Sepolia payment routes with Circle CCTP settlement on Arc
- Google-authenticated Circle smart-account recipient onboarding
- Deterministic claimable escrow with EIP-712 and EIP-1271 support
- Private, append-only settlement records and controlled, non-executable recovery plans
- Verified end-to-end Arc Testnet payment, bridge, smart-account, and claim flows
Stack: TypeScript · Next.js · Solidity · Circle App Kit · CCTP · USDC · Arc
arc-environmental-retainage — Environmental performance assurance
A programmable retainage system for environmental commitments, deployed on Arc Testnet.
- USDC-funded milestone lifecycle
- Separate owner, contractor, verifier, and remediation roles
- Evidence anchoring with bounded review and cure periods
- Tested Solidity contracts and a public Next.js application
Stack: Solidity · Hardhat · Next.js · ethers.js · USDC · Arc
base-receipt — Server-verified Base Pay receipts
A production-minded Base Mainnet USDC payment flow that independently verifies settlement before issuing a durable receipt.
- Short-lived signed payment requests and server-side amount/recipient verification
- Atomic PostgreSQL replay protection
- Verified production flow with a real Base Mainnet USDC payment
base-agent-meter — x402 production assurance
A Base-native assurance tool for checking whether agents can discover, pay for, settle, and consume x402 services.
- Unpaid pre-deploy checks and explicitly gated live paid canaries
- Base USDC settlement proof and ERC-8021 builder-attribution verification
- Verified x402 v2 seller flow with a real Base Mainnet payment
technocore-task-relay — DID-signed agent coordination
An independent mission board and guarded autonomous worker built for the Technocore agent network.
- Browser-generated Ed25519 identities with local signing and encrypted backup
- DID-signed mission creation, cross-agent claiming, and completion receipts
- Explainable relevance, cooldown, duplicate, and response-quality gates
- Scheduled worker with safe dry-run defaults and bounded failure handling
- Verified signed mission and lobby check-in accepted by Technocore
Live room · Verified lobby check-in
Stack: JavaScript · Node.js · Ed25519 · DID · GitHub Actions · AgentRouter
A lightweight Python CLI for checking wallet balances across Ethereum and Base.
Solidity · TypeScript · Next.js · Hardhat · ethers.js · Python · Web3 · GitHub Actions
Current focus: Base and Arc/Circle payment infrastructure, verifiable settlement, smart-account flows, x402 assurance, and agent coordination.