Base
Coinbase's Layer 2 optimistic rollup, the primary settlement network used by x402 because of its low fees and native USDC support.
Related terms
- USDC - USD Coin - a dollar-pegged stablecoin issued by Circle and the default settlement asset for most x402 deployments.
- Settlement - The on-chain finalisation of an x402 payment, confirmed by a facilitator before the resource server serves the paid response.
- x402 - An open payment protocol built on top of HTTP 402 that lets servers demand stablecoin payment before serving a resource, and lets clients (i
Recent stories
PROTOCOL
- x402 by Coinbase goes live on Arbitrum mainnet - CDP facilitator now covers a fifth chain alongside Base, Polygon, World and Solana · phemex.com
- Jesse Pollak ships batched settlement on x402 - ERC-20 escrow + offchain signed vouchers unlock sub-$0.0001 per-request pricing, directly answering the per-request-settlement bear case · cointelegraph.com
- TACEO ships Confidential x402 on Base Sepolia - 3-party MPC + zk-proofs make every payment private at ~300k gas, 8x cheaper than heavyweight ZK alternatives · finextra.com
- Coinbase Q1 call: 99% of x402 settled in USDC, 90% of agentic stablecoin volume on Base - Choi calls x402 'the open standard for the next wave of agentic commerce' · theglobeandmail.com
- Circle ships Nanopayments on mainnet - gas-free USDC down to $0.000001 across 11 chains, fully x402 v2 compatible · circle.com
MARKET
- OKX Ventures: x402 Daily Transactions Crater 92% from December Peak · blockchain.news
- 80% of Acquirers Say They’re Ready for Agentic Commerce · pymnts.com
- Two-Layer Payments Stack Emerging for AI-Native Transactions · en.cryptonomist.ch
- AI Agents Already Driving 10% of Revenue for Some Brands · fortune.com
- Circle: USDC Dominates AI Agent Payment Flows · en.sedaily.com