June 12, 2026

14 articles published in this period.

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Agents That Pay: How x402 Settles a Stablecoin Payment On-Chain

An agent hits an API, gets HTTP 402, signs a stablecoin authorization, and a facilitator settles it on-chain for a fraction of a cent. We trace one real payment on Base down to the gas — and where the trust actually sits.

Jun 12, 2026 7 min read ⬢ interactive

Agents Blockchain Infrastructure

How AI Agents Pay for APIs: Inside x402 and Gasless Stablecoin Settlement

An autonomous agent can't sign up for an API key or swipe a credit card. x402 revives HTTP 402 and settles in gasless USDC — here's the EIP-3009 handshake, the facilitator trust model, and where prompt injection breaks it.

Jun 12, 2026 8 min read