Workshop
summary
Arc’s nano payments use HTTP 402/X2X to let AI agents sign off‑chain payments that are later batched and settled via a gateway, using ephemeral agent wallets and gateway deposits. Live demo shows an agent with a 1 USDC spending cap completing 98 tasks on 1 USDC across quotes, datasets, compute and treasure-hunt endpoints, each returning in sub-500ms per request with effectively zero gas per transaction after batch settlement.
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chapters (17)
- 0:00Introduction and Hackathon Bounties
- 0:31Best Smart Contract with Stablecoin Logic
- 1:03Abstracted USDC Apps and Arc as Liquidity Layer
- 1:31Agentic Economy with Nano Payments
- 1:55Prediction Markets Bounty
- 2:17Sample Application Overview
- 3:01How X2X and HTTP 402 Protocol Work
- 3:52Payment Flow Diagram Walkthrough
- 5:19Ephemeral Wallets and Off-Chain Signatures
- 6:16Batch Settlement via Gateway
- 7:19Key Points: Zero Gas Agentic Payments
- 7:46Dashboard and Endpoint Overview
- 9:04Live Demo: Agent Running 98 Tasks on 1 USDC
- 10:28Sub-500ms Transaction Speed
- 11:00Seller Settlement and Withdrawal
- 12:01Demo Results: Agent Spent Exactly 1 USDC
- 12:50Q&A








