# Arc Workshop I Blessing Adesiji

- Channel: [ETHGlobal](https://streameth.org/ethglobal)
- Date: 2026-05-09
- Duration: 17:15
- Topics: Arc, nano payment, X2X, HTTP 402, agentic economy, AI agents, USDC, stablecoin, gateway, off-chain signatures, batch settlement, ephemeral wallet, smart contracts, liquidity layer, CCTP, subsent payments, zero gas, compute, LLM, API, prediction markets, escrow, lending, payroll, ERC20, multi-chain, Base, Ethereum, Arbitrum, hackathon, developer tools, Web3, blockchain, DeFi, finality, bounties, settlement layer, dashboard
- Watch: https://streameth.org/watch/yt-44vPjUkxh3g
- YouTube: https://www.youtube.com/watch?v=44vPjUkxh3g

## Description

In this workshop, Blessing Adesiji walks through Arc's nano payment system and demonstrates how to build agentic economy use cases using the X2X protocol and Arc's gateway infrastructure. He explains how nano payments solve the challenge of sub-cent transactions by batching off-chain signatures and settling them on-chain later, reducing gas costs to near zero. The X2X protocol leverages HTTP 402 responses so that AI agents can request paid content or services, sign payments off-chain, and receive access — all without individual on-chain transactions.

Blessing runs a live demo of a sample application where an AI agent with a 1 USDC spending limit completes 98 tasks across multiple endpoints — quotes, datasets, compute via LLM APIs, and agentic treasure hunt tasks — all in sub-500ms with zero gas per transaction. He shows how the ephemeral agent wallet, gateway deposits, off-chain signature batching, and seller settlement all work together. The session covers four hackathon bounty tracks: advanced stablecoin smart contracts, abstracted USDC apps using Arc as a liquidity layer, agentic economy with nano payments, and prediction markets with real-world signals.

00:00 Introduction and Hackathon Bounties
00:31 Best Smart Contract with Stablecoin Logic
01:03 Abstracted USDC Apps and Arc as Liquidity Layer
01:31 Agentic Economy with Nano Payments
01:55 Prediction Markets Bounty
02:17 Sample Application Overview
03:01 How X2X and HTTP 402 Protocol Work
03:52 Payment Flow Diagram Walkthrough
05:19 Ephemeral Wallets and Off-Chain Signatures
06:16 Batch Settlement via Gateway
07:19 Key Points: Zero Gas Agentic Payments
07:46 Dashboard and Endpoint Overview
09:04 Live Demo: Agent Running 98 Tasks on 1 USDC
10:28 Sub-500ms Transaction Speed
11:00 Seller Settlement and Withdrawal
12:01 Demo Results: Agent Spent Exactly 1 USDC
12:50 Q&A

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*ETHGlobal Cannes 2026*
This workshop is specifically for ETHGlobal Cannes 2026, a 3-day hackathon held April 3-5 at the Palace of Festivals and Congresses of Cannes, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! Watch the full ETHGlobal Cannes 2026 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh5YrcvSj6KSTztLMy58d7d4

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