BroadChain News, April 23, 22:30. AI Agents are rapidly evolving from auxiliary tools into economic participants, yet their identity, authorization, and payment mechanisms still lack standardization. Blockchain provides a permissionless foundation for Agents to operate as economic entities through public ledgers, portable wallets, and stablecoins—technologies that are already practically applicable.
The bottleneck of the Agent economy lies in identity, not intelligence. In financial services, the number of non-human identities has already reached approximately 100 times that of human employees, yet Agents remain in a "unbanked" state, lacking a portable and verifiable identity layer. The concept of KYA (Know Your Agent) proposes that Agents need cryptographically signed credentials to bind identity, permissions, and reputation, with blockchain providing a neutral coordination layer.
When Agents take over real systems, governance control becomes critical. If the underlying AI layer is controlled by a single provider, formal decentralized governance could be rendered ineffective. Cryptographic technology must provide guarantees in areas such as training data, instructions, behavioral records, and post-deployment changes, ensuring that Agents are accountable to users rather than to model companies.
Transactions between AI Agents are giving rise to new payment rails. Stablecoins are emerging as an alternative settlement layer, with solutions like x402 and MPP embedding payments into HTTP requests, processing tens of thousands of low-fee transactions. Traditional payment systems struggle to underwrite headless merchants, while the permissionless programmability of stablecoins offers a flexible solution for Agent-to-Agent commerce.
In the Agent economy, verification becomes a scarce resource. Human oversight capabilities cannot keep pace with Agent throughput, and unverified deployments accumulate compounding risks. Blockchain and on-chain attestations can provide auditable historical records, hardcoding trust into the system architecture. User control must be maintained through scope delegation and intent-based architectures to avoid blind trust.
Scaling without cryptographic verification is essentially a liability that accumulates over time. The enduring advantage belongs to those who can cryptographically authenticate outputs, provide insurance, and assume responsibility.