Analysis: Crypto Becoming Default Payment Layer for AI Agents, Stablecoin Advantages Highlighted

Odaily reports that crypto market maker and investment firm Keyrock has released a new report indicating that as traditional bank card payment systems struggle to meet micro-payment needs, blockchain-based stablecoin payment rails are gradually becoming the default payment layer for AI agents.

The report shows that between May 2025 and April 2026, AI agents have completed over 176 million transactions through on-chain infrastructure, settling more than $73 million.

The so-called "Agentic Payments" refer to AI software that can autonomously purchase data, computing power, API access, or AI services without requiring human authorization for each individual transaction. For example, an AI trading agent can continuously and automatically buy market data, cloud computing resources, or AI analysis services. Keyrock believes this growth rate may even surpass the early explosive phase of stablecoins.

Currently, Coinbase's x402 protocol has emerged as one of the leading crypto-native machine payment solutions, allowing AI agents to directly pay for on-chain data analysis, cloud services, and other resources using USDC, without the need for accounts or subscription systems.

Data shows that approximately 76% of AI agent payment amounts fall below the common 30-cent fixed fee threshold of traditional bank cards, with most transactions ranging from just 1 to 10 cents. This makes traditional payment networks unsuitable for machine-to-machine micropayments. In contrast, on chains like Base and Tempo, the settlement cost for stablecoins is "less than one cent."

However, regulation may still become a limiting factor for industry growth. The report points out that new regulatory frameworks, including Europe's MiCA, the US's GENIUS Act, and the EU's AI Act, have yet to directly cover critical issues such as autonomous transactions by AI agents, liability attribution, and identity authentication. (CoinDesk)