SoK: Blockchain Agent-to-Agent Payments
Published in International Conference on Blockchain Research and Applications (BCRA 2026), 2026
Overview
A systematization of blockchain-based agent-to-agent payments, their trust and security risks, and future research directions.
Cite
Yuanzhe Zhang, Yuexin Xiang, Yuchen Lei, Qin Wang, Tian Qiu, Yujing Sun, Spiridon Zarkov, Tsz Hon Yuen, Andreas Deppeler, Jiangshan Yu, and Kwok-Yan Lam. “SoK: Blockchain Agent-to-Agent Payments.” To appear in International Conference on Blockchain Research and Applications (BCRA 2026), 2026.
Resources
This paper systematizes blockchain-based payments between AI agents through a four-stage lifecycle: discovery, authorization, execution, and accounting. It identifies trust, security, privacy, and accountability challenges in emerging agent-to-agent payment systems and outlines directions for safer payment workflows.