AI-driven crypto payments over Coinbase’s x402 protocol have surged sharply as autonomous agents begin using stablecoins to pay for data, APIs and compute directly over the web. DL News reports that transactions using x402 jumped about 4,300% in a week to roughly 957,000 payments, highlighting a rapid uptick in real-world usage of the protocol by AI agents interacting with online services. x402, introduced by Coinbase in 2025, embeds USDC-based stablecoin payments directly into HTTP using the long-dormant 402 Payment Required status code, allowing clients such as AI agents, scripts, or apps to receive a 402 response, pay instantly, and then retry the request to access premium resources. Coinbase positions x402 as an open, neutral standard for “internet-native payments” that can be integrated into existing web infrastructure with minimal code changes, enabling pay-per-request access to APIs, research, software and other digital services. The recent growth coincides with broader efforts to tie AI workloads to blockchain-based payments: Coinbase’s “Coinbase for Agents” product lets AI agents trade and move funds from segregated accounts via x402, typically using USDC as the settlement rail. Major infrastructure providers are backing the standard; Coinbase has highlighted collaborations with Cloudflare and Google to support or explore x402-based “agentic payments,” indicating that large cloud and security platforms see potential in a payment layer tailored to machine-to-machine and AI-driven transactions. The spike in x402 volume therefore matters not just as a Coinbase metric, but as an early signal that AI agents are beginning to use stablecoins for automated, micro-scale payments across the web.

AI-generated background, compiled from web sources — not editorial content.

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