The push for Know Your Agent (KYA) standards is gaining momentum as AI agents increasingly engage in autonomous transactions, raising concerns about identity verification. Unlike traditional Know Your Customer (KYC) protocols, KYA focuses on verifying the identity and permissions of AI agents, particularly in decentralized environments like DEXs and A2A payments. This shift is driven by the need to prevent unauthorized transactions, identity spoofing, and accountability issues. Four key players are vying to establish KYA standards: ERC-8004, Visa TAP, Trulioo, and Sumsub. Each offers distinct approaches, from on-chain identity NFTs to payment network integration and real-time anomaly detection. Regulatory bodies, including the EU, U.S., and Singapore, are prioritizing agent identity management, echoing the impact of the FATF Travel Rule on crypto exchanges in 2019. As the regulatory landscape evolves, the integration of KYA standards is expected to accelerate, with no single player dominating the market.