Build for the Agentic Economy With
summary
Arc settles USDC payments in under a second (demo cites ~0.48s) and uses USDC as native gas so agents don’t need volatile tokens; it leverages HTTP x402 payment negotiation with Circle Gateway and offchain EIP-712 authorizations that Circle Nanopayments batch and settle onchain later. Circle Agent Stack supplies Agent Wallet, Marketplace, Nanopayments, Circle CLI, skills and a starter kit; the repo demo runs a LangChain buyer that signs 402 authorizations, retries requests, and shows payments on a seller dashboard on testnet.
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chapters (27)
- 0:00Introduction to Agentic Payments
- 0:15Meet Blessing and the Workshop Goals
- 1:56Why Arc Fits Agentic Workflows
- 2:41x402 Payment Negotiation
- 3:21Trading Agent Workflow Example
- 4:08Data, Decisions, and Automated Actions
- 5:19Subsecond Payments on Arc
- 5:49USDC as the Native Gas Token
- 7:28Agents Paying While They Work
- 8:46Builder Questions on Agent Wallets
- 9:15CLI and Starter Kit Options
- 11:27Introducing Circle Agent Stack
- 11:44Wallet, Marketplace, CLI, and Skills
- 13:52Nanopayments for Tiny API Calls
- 14:43Offchain Batching and Settlement
- 15:54Agent Stack Components Together
- 16:49Production Starter Kit
- 17:08Payment Policy and CLI Q&A
- 19:01Gasless USDC Demo Overview
- 19:49Buyer and Seller Application
- 21:19Circle Gateway and Signed Payments
- 22:50Seller Dashboard and User Interface
- 23:40Running the Sample Application
- 25:05Why Arc Payments Stay Efficient
- 26:26Workshop Recap and Support
- 28:18Arc Prize Track Questions
- 29:16DeFi and Agentic Economy Bounties
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