Particle.news
Download on the App Store

Coinbase Engineer Pitches x402 to Make AI Agents Pay for the Web

Reppel proposes charging software agents small fees through a new HTTP 402 crypto standard.

Overview

  • Erik Reppel told the Consensus Miami audience that autonomous AI agents ignore online ads and could upend the web’s ad-based business model.
  • x402, the open protocol he created, uses the HTTP “Payment Required” code to trigger stablecoin micropayments, with a suggested five-cent charge per agent visit.
  • CoinDesk framed the push as part of the crypto industry’s effort to make stablecoins the payment rail for AI-driven access to content, data, and APIs.
  • Reppel cited estimates that the agent economy could reach $3–5 trillion within a few years, presenting it as a projection rather than a settled outcome.
  • Crypto.news reported that Cloudflare handles large volumes of HTTP 402 responses and is working with Coinbase on x402, a sign sites may shift to billing bots directly.