HOJUN LEE@truhojun

A production gateway where AI agents make a legal question, receive an HTTP 402 Payment Required response with an EIP-712 challenge, sign a $0.001 USDC authorization using EIP-3009, and Arc settles the payment in under a second. The gateway then responds with relevant statute passages and a Gemini-synthesized answer, together with the on-chain transaction hash as proof. Legal SaaS platforms (Westlaw, Lexis) cost $200+/month and assume human attorneys. Card rails can't process sub-cent queries. We close that gap with a per-query gateway whose receipt is a real on-chain transaction hash. Live demo: https://mcp-x402-gateway.fly.dev/

Triumvirate is a multi-agent AI trading system built for the ERC-8004 & Kraken CLI hackathon. It combines autonomous AI decision-making with on-chain trustless verification. The system consists of three specialized agents: 1. Analyst Agent — Scans 6 crypto pairs, classifies market regime (TRENDING/RANGE/LOW_VOL), and generates signals using 3-way LLM consensus (Claude, Codex, Gemini running in parallel). Only signals with majority agreement (2/3 or 3/3) are forwarded. 2. Risk Guardian Agent — Reviews every signal, checks daily drawdown budget, position limits, and adjusts position sizing based on regime (50% reduction in LOW_VOL, 75% in RANGE). Posts risk decisions to the message bus. 3. Executor Agent — Places market orders on Kraken via CLI, manages stop-losses, monitors positions with TTL-based exits, and dynamically adjusts stops using AI analysis. ERC-8004 integration: Each agent has an on-chain identity via the ERC-8004 Identity Registry. Every trade intent, risk decision, and LLM consensus is posted as a validation checkpoint to the Sepolia ValidationRegistry, building a transparent audit trail of agent behavior and reputation. The scanner ranks pairs by momentum/volume score. The LLM prompt includes scanner rankings and blocked pairs, ensuring the AI focuses on the highest-opportunity assets while avoiding duplicates. Adaptive regime thresholds automatically relax in quiet markets to capture more trades.

In this hybrid hackathon powered by Arc and Circle, developers will build the next generation of Agentic economic applications using Circle’s Nanopayments infrastructure with settlement on Arc in USDC. For the first time, high-frequency, usage-based transactions between users, APIs, and AI agents can operate without gas overhead eroding margin. Arc provides stablecoin-native settlement with predictable, dollar-denominated USDC fees and deterministic, sub-second finality — enabling real-time coordination and economically viable per-action pricing at scale. 📅 April 20 – 26, 2026 • Apr 20 – 25 (Online): Submit projects by Apr 25. • Apr 25 (On-site Build – SF, CA): Teams refine projects. • Apr 26 (On-site Demos & Awards – SF, CA): Live pitches & winners announced. Get guidance from Arc and Circle experts through on-site support. 📍 On-site Venue (April 25-26): MindsDB SF AI Collective 3154 17th St, San Francisco, California, USA 🤝 Go solo or team up, it's your flow. 🏆 Compete for a $15,000+ Prize Pool. 📍 Please note: If approved for the on-site experience, you’ll also have the opportunity to showcase your project live. Travel and accommodation will not be covered. 🧑🏻‍💻 Secure your spot now – sign up before the Kick-Off Stream!

⏱️ Design, build, and deploy trustless AI trading agents. 📅 March 30 – April 12, 2026 🌐 Build AI trading agents that execute strategies using ERC-8004 or Kraken CLI. 🤝 Build solo or in teams to create autonomous trading, risk, yield, or protection agents. 💰 $55,000 prize pool, allocated and shared via Surge and Kraken. Your team should have registered project at early.surge.xyz in order to be eligible for the prize. Get access in your team profile or our discord 🔑 Access to early.surge.xyz If prompted for login credentials, use: • Username: admin • Password: JBRv2xWG7AzwVrLz88